Adding Life to Your Patients’ Years

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Changed
Tue, 04/23/2024 - 11:31

 

Caring for older adults was one of the most rewarding parts of my years practicing as a clinical cardiologist. I appreciated their wisdom, humor, and, very often, their respect and appreciation for physicians. It was always upsetting to see them suffer a mild fall or episode of atrial fibrillation and recognize that it could have major health ramifications.

Life expectancy has improved dramatically, but longer lifespans also mean more opportunity for illness, pain, chronic disease, and dependence on others. Having successfully helped older adults live longer, the question now becomes, how can we, as physicians, add more life to those years? How can we increase their “healthspans”?

That is not just a question for geriatric care. With fewer than two practicing geriatricians for every 10,000 older individuals, it is obvious that geriatricians cannot shoulder this responsibility alone. Almost all primary care physicians and subspecialists should prepare to care for older individuals and help them age healthfully.

Susan Friedman, MD, a board-certified geriatrics and lifestyle medicine clinician at the University of Rochester School of Medicine and Dentistry, Rochester, New York, reviewed the literature on the connection between lifestyle and healthy aging and concluded that the integration of lifestyle medicine into medical care for older adults is key to compressing morbidity. The pillars of lifestyle medicine — optimal nutrition, physical activity, stress management, restorative sleep, positive social connections, and avoidance of risky substances — both individually or as a sum are associated with less chronic disease, improved engagement in life, better physical and cognitive function, less frailty, and less sarcopenia. Framing discussions with patients around the six pillars of lifestyle medicine can be an effective strategy.
 

Optimal Nutrition

For a variety of reasons, older adults, especially those living alone, often lose the desire to prepare a nourishing meal. Older adults require different protein intake than younger patients to offset age-related sarcopenia, but helping them select healthy sources of protein is imperative. Both adequate protein consumption and eating patterns high in vegetables, legumes, fruit, and nuts and low in saturated fat, red meat, and processed meat can lower the risk of developing frailty.

Asking a patient to share a 24-hour food recall, and based upon that, resourcing nutritional guidance, a lifestyle medicine program or specialist, and insurance or community resources for food-as-medicine services, is a good first step.
 

Physical Activity

Increasing general physical activity can be a tough ask for many older adults, and joint pain is a common reason they demur. Messaging around targeted exercises to mitigate falls, improve muscle strength, and reduce joint pain may be more appealing. Contemporary research demonstrates that exercise, particularly open-skill exercise that requires quick decisions (such as table tennis) can be powerful. Maintaining cognition, mood enhancement, and independence may also be motivating messages.

The first step is curiosity: What does your patient like to do? Referral to a physical therapist or an exercise specialist to provide stepwise guidance along with resourcing community opportunities can then follow.
 

Restorative Sleep

“I’m old. I don’t need as much sleep.” We’ve probably all heard older patients say this. But the National Sleep Foundation’s report on sleep health and aging indicates that the need to sleep does not decrease with age. The ability to sleep, however, may decline. Assessing and treating disordered sleep is another example of how each lifestyle medicine pillar, such as nutrition and physical activity, is multidimensional and interacts to support the functional integrity of older patients. It’s hard to feel motivated to go for a walk if you lack adequate sleep.
 

 

 

Stress Management

Exploring stress with patients can be very revealing. Do they experience stress that energizes and has a positive effect? How much of their day is spent in negatively impactful distress? Chronic stress has been shown to affect immune function in older individuals. Start conversations with your older patients to normalize the importance of stress as a health measure.
 

Positive Social Connections

Loneliness puts individuals at higher risk for heart disease, stroke, and dementia and even increases the risk for premature death by up to 60%. Yet, clinicians and patients rarely discuss social connections during medical appointments. Tools such as the UCLA Loneliness Scale exist for health practitioners to assess and identify patients at risk for loneliness, as do resources to integrate social care into the delivery of healthcare.
 

Avoidance of Risky Substances

Alcohol assessments are not just for younger patients. One study found that 5.6 million adults ages 65 or older engaged in binge drinking in the past month. Because of body changes, the negative effects of alcohol may be greater on older adults, including interactions between alcohol and commonly prescribed medications. 

Conducting a lifestyle assessment is an important way to engage with older patients and allows clinicians to identify opportunities to improve health behaviors, understand obstacles, and support patients to make lifestyle changes. It may uncover ways to remove some of the pill and treatment burdens that older adults often experience. The American College of Lifestyle Medicine (ACLM) offers clinical practice resources to support clinicians as well as “Lifestyle Medicine and Food as Medicine Essentials,” a 5.5-hour complimentary CE/CME course on food and lifestyle medicine that introduces clinicians to the therapeutic use of lifestyle medicine. ACLM also offers members interest groups focused on geriatrics, fitness, and mental health, which may be beneficial to clinicians treating older adults.

By engaging with older patients on their lifestyle behaviors, we can ensure that we are doing all we can to help them live longer — and live better.

Dr. Collings is director of lifestyle medicine, Silicon Valley Medical Development, and past president, American College of Lifestyle Medicine, Mountain View, California. She has disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.

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Caring for older adults was one of the most rewarding parts of my years practicing as a clinical cardiologist. I appreciated their wisdom, humor, and, very often, their respect and appreciation for physicians. It was always upsetting to see them suffer a mild fall or episode of atrial fibrillation and recognize that it could have major health ramifications.

Life expectancy has improved dramatically, but longer lifespans also mean more opportunity for illness, pain, chronic disease, and dependence on others. Having successfully helped older adults live longer, the question now becomes, how can we, as physicians, add more life to those years? How can we increase their “healthspans”?

That is not just a question for geriatric care. With fewer than two practicing geriatricians for every 10,000 older individuals, it is obvious that geriatricians cannot shoulder this responsibility alone. Almost all primary care physicians and subspecialists should prepare to care for older individuals and help them age healthfully.

Susan Friedman, MD, a board-certified geriatrics and lifestyle medicine clinician at the University of Rochester School of Medicine and Dentistry, Rochester, New York, reviewed the literature on the connection between lifestyle and healthy aging and concluded that the integration of lifestyle medicine into medical care for older adults is key to compressing morbidity. The pillars of lifestyle medicine — optimal nutrition, physical activity, stress management, restorative sleep, positive social connections, and avoidance of risky substances — both individually or as a sum are associated with less chronic disease, improved engagement in life, better physical and cognitive function, less frailty, and less sarcopenia. Framing discussions with patients around the six pillars of lifestyle medicine can be an effective strategy.
 

Optimal Nutrition

For a variety of reasons, older adults, especially those living alone, often lose the desire to prepare a nourishing meal. Older adults require different protein intake than younger patients to offset age-related sarcopenia, but helping them select healthy sources of protein is imperative. Both adequate protein consumption and eating patterns high in vegetables, legumes, fruit, and nuts and low in saturated fat, red meat, and processed meat can lower the risk of developing frailty.

Asking a patient to share a 24-hour food recall, and based upon that, resourcing nutritional guidance, a lifestyle medicine program or specialist, and insurance or community resources for food-as-medicine services, is a good first step.
 

Physical Activity

Increasing general physical activity can be a tough ask for many older adults, and joint pain is a common reason they demur. Messaging around targeted exercises to mitigate falls, improve muscle strength, and reduce joint pain may be more appealing. Contemporary research demonstrates that exercise, particularly open-skill exercise that requires quick decisions (such as table tennis) can be powerful. Maintaining cognition, mood enhancement, and independence may also be motivating messages.

The first step is curiosity: What does your patient like to do? Referral to a physical therapist or an exercise specialist to provide stepwise guidance along with resourcing community opportunities can then follow.
 

Restorative Sleep

“I’m old. I don’t need as much sleep.” We’ve probably all heard older patients say this. But the National Sleep Foundation’s report on sleep health and aging indicates that the need to sleep does not decrease with age. The ability to sleep, however, may decline. Assessing and treating disordered sleep is another example of how each lifestyle medicine pillar, such as nutrition and physical activity, is multidimensional and interacts to support the functional integrity of older patients. It’s hard to feel motivated to go for a walk if you lack adequate sleep.
 

 

 

Stress Management

Exploring stress with patients can be very revealing. Do they experience stress that energizes and has a positive effect? How much of their day is spent in negatively impactful distress? Chronic stress has been shown to affect immune function in older individuals. Start conversations with your older patients to normalize the importance of stress as a health measure.
 

Positive Social Connections

Loneliness puts individuals at higher risk for heart disease, stroke, and dementia and even increases the risk for premature death by up to 60%. Yet, clinicians and patients rarely discuss social connections during medical appointments. Tools such as the UCLA Loneliness Scale exist for health practitioners to assess and identify patients at risk for loneliness, as do resources to integrate social care into the delivery of healthcare.
 

Avoidance of Risky Substances

Alcohol assessments are not just for younger patients. One study found that 5.6 million adults ages 65 or older engaged in binge drinking in the past month. Because of body changes, the negative effects of alcohol may be greater on older adults, including interactions between alcohol and commonly prescribed medications. 

Conducting a lifestyle assessment is an important way to engage with older patients and allows clinicians to identify opportunities to improve health behaviors, understand obstacles, and support patients to make lifestyle changes. It may uncover ways to remove some of the pill and treatment burdens that older adults often experience. The American College of Lifestyle Medicine (ACLM) offers clinical practice resources to support clinicians as well as “Lifestyle Medicine and Food as Medicine Essentials,” a 5.5-hour complimentary CE/CME course on food and lifestyle medicine that introduces clinicians to the therapeutic use of lifestyle medicine. ACLM also offers members interest groups focused on geriatrics, fitness, and mental health, which may be beneficial to clinicians treating older adults.

By engaging with older patients on their lifestyle behaviors, we can ensure that we are doing all we can to help them live longer — and live better.

Dr. Collings is director of lifestyle medicine, Silicon Valley Medical Development, and past president, American College of Lifestyle Medicine, Mountain View, California. She has disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.

 

Caring for older adults was one of the most rewarding parts of my years practicing as a clinical cardiologist. I appreciated their wisdom, humor, and, very often, their respect and appreciation for physicians. It was always upsetting to see them suffer a mild fall or episode of atrial fibrillation and recognize that it could have major health ramifications.

Life expectancy has improved dramatically, but longer lifespans also mean more opportunity for illness, pain, chronic disease, and dependence on others. Having successfully helped older adults live longer, the question now becomes, how can we, as physicians, add more life to those years? How can we increase their “healthspans”?

That is not just a question for geriatric care. With fewer than two practicing geriatricians for every 10,000 older individuals, it is obvious that geriatricians cannot shoulder this responsibility alone. Almost all primary care physicians and subspecialists should prepare to care for older individuals and help them age healthfully.

Susan Friedman, MD, a board-certified geriatrics and lifestyle medicine clinician at the University of Rochester School of Medicine and Dentistry, Rochester, New York, reviewed the literature on the connection between lifestyle and healthy aging and concluded that the integration of lifestyle medicine into medical care for older adults is key to compressing morbidity. The pillars of lifestyle medicine — optimal nutrition, physical activity, stress management, restorative sleep, positive social connections, and avoidance of risky substances — both individually or as a sum are associated with less chronic disease, improved engagement in life, better physical and cognitive function, less frailty, and less sarcopenia. Framing discussions with patients around the six pillars of lifestyle medicine can be an effective strategy.
 

Optimal Nutrition

For a variety of reasons, older adults, especially those living alone, often lose the desire to prepare a nourishing meal. Older adults require different protein intake than younger patients to offset age-related sarcopenia, but helping them select healthy sources of protein is imperative. Both adequate protein consumption and eating patterns high in vegetables, legumes, fruit, and nuts and low in saturated fat, red meat, and processed meat can lower the risk of developing frailty.

Asking a patient to share a 24-hour food recall, and based upon that, resourcing nutritional guidance, a lifestyle medicine program or specialist, and insurance or community resources for food-as-medicine services, is a good first step.
 

Physical Activity

Increasing general physical activity can be a tough ask for many older adults, and joint pain is a common reason they demur. Messaging around targeted exercises to mitigate falls, improve muscle strength, and reduce joint pain may be more appealing. Contemporary research demonstrates that exercise, particularly open-skill exercise that requires quick decisions (such as table tennis) can be powerful. Maintaining cognition, mood enhancement, and independence may also be motivating messages.

The first step is curiosity: What does your patient like to do? Referral to a physical therapist or an exercise specialist to provide stepwise guidance along with resourcing community opportunities can then follow.
 

Restorative Sleep

“I’m old. I don’t need as much sleep.” We’ve probably all heard older patients say this. But the National Sleep Foundation’s report on sleep health and aging indicates that the need to sleep does not decrease with age. The ability to sleep, however, may decline. Assessing and treating disordered sleep is another example of how each lifestyle medicine pillar, such as nutrition and physical activity, is multidimensional and interacts to support the functional integrity of older patients. It’s hard to feel motivated to go for a walk if you lack adequate sleep.
 

 

 

Stress Management

Exploring stress with patients can be very revealing. Do they experience stress that energizes and has a positive effect? How much of their day is spent in negatively impactful distress? Chronic stress has been shown to affect immune function in older individuals. Start conversations with your older patients to normalize the importance of stress as a health measure.
 

Positive Social Connections

Loneliness puts individuals at higher risk for heart disease, stroke, and dementia and even increases the risk for premature death by up to 60%. Yet, clinicians and patients rarely discuss social connections during medical appointments. Tools such as the UCLA Loneliness Scale exist for health practitioners to assess and identify patients at risk for loneliness, as do resources to integrate social care into the delivery of healthcare.
 

Avoidance of Risky Substances

Alcohol assessments are not just for younger patients. One study found that 5.6 million adults ages 65 or older engaged in binge drinking in the past month. Because of body changes, the negative effects of alcohol may be greater on older adults, including interactions between alcohol and commonly prescribed medications. 

Conducting a lifestyle assessment is an important way to engage with older patients and allows clinicians to identify opportunities to improve health behaviors, understand obstacles, and support patients to make lifestyle changes. It may uncover ways to remove some of the pill and treatment burdens that older adults often experience. The American College of Lifestyle Medicine (ACLM) offers clinical practice resources to support clinicians as well as “Lifestyle Medicine and Food as Medicine Essentials,” a 5.5-hour complimentary CE/CME course on food and lifestyle medicine that introduces clinicians to the therapeutic use of lifestyle medicine. ACLM also offers members interest groups focused on geriatrics, fitness, and mental health, which may be beneficial to clinicians treating older adults.

By engaging with older patients on their lifestyle behaviors, we can ensure that we are doing all we can to help them live longer — and live better.

Dr. Collings is director of lifestyle medicine, Silicon Valley Medical Development, and past president, American College of Lifestyle Medicine, Mountain View, California. She has disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.

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Novel PCSK9 Inhibitor Reduced LDL by 50%

Article Type
Changed
Tue, 04/23/2024 - 07:34

 

Lerodalcibep, a novel, third-generation proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitor, reduced low-density lipoprotein cholesterol (LDL-C) by more than 50% after 1 year in patients with or at a high risk for cardiovascular disease (CVD), new phase 3 results showed.

Newer, more stringent LDL targets in 90% of patients receiving lerodalcibep vs only 16% of those on placebo, despite concurrent treatment with a statin or statin plus ezetimibe.

“This hopefully gives doctors a more practical PCSK9 antagonist that’s small volume, can be administered monthly, and is an alternative to the every 2 week injection of monoclonal antibodies and probably more effective in LDL cholesterol–lowering compared to the small interfering RNA” medicines, study author Eric Klug, MBBCh, MMed, associate professor, Division of Cardiology, University of the Witwatersrand, Johannesburg, South Africa, told this news organization.

The findings from the LIBerate-HR trial were presented at the American College of Cardiology (ACC) Scientific Session 2024.
 

Additional Therapy Needed

The first goal is to get at least a 50% reduction in LDL-C, said Dr. Klug. The ACC, the American Heart Association, and the European Society of Cardiology recommended LDL-C of no more than 55 mg/dL as a goal for patients with CVD or who are at a very high risk for myocardial infarction or stroke and no more than 70 mg/dL for high-risk patients.

Most patients don’t get to that combined goal with statins and ezetimibe and need additional therapy, “and it appears the earlier you give the therapy the better,” said Dr. Klug.

Lerodalcibep is given as a low-dose (1.2-mL) monthly injection and is more convenient than other LDL-C–lowering options, said Dr. Klug. “This is a small-volume molecule that can be delivered subcutaneously once a month and can be kept on the shelf so it doesn’t need to be kept in the fridge, and you can travel with it.”

LIBerate-HR included 922 patients with CVD or at a high or very high risk for myocardial infarction or stroke at 66 centers in 11 countries. Over half (52%) fell into the at-risk category.

The mean age of participants was 64.5 years, 77% were White, and, notably, about 45% were women. Some 84% were taking a statin, 16.6% ezetimibe, a quarter had diabetes, and 10% had the more severe inherited familial hypercholesterolemia (FH).

Patients were randomly assigned to receive monthly 300-mg (1.2-mL) subcutaneous injections of lerodalcibep (n = 615) or placebo (n = 307) for 52 weeks.

The mean LDL-C at baseline was 116.9 mg/dL in the placebo group and 116.3 mg/dL in the treatment group.

The co-primary efficacy endpoints were the percent change from baseline in LDL-C at week 52 and the mean of weeks 50 and 52 (average of the peak and trough dose).

Compared with placebo, lerodalcibep reduced LDL-C by 56.19% at week 52 (P < .0001) and by 62.69% at mean week 50/52 (P < .0001). The absolute decreases were 60.6 mg/dL at week 52 and 74.5 mg/dL for mean week 50/52.
 

Rule of Thumb

“There’s a sort of rule of thumb that for every 40 mg/dL that LDL-C is reduced, you reduce major adverse cardiovascular events (MACE) by 20%-23%,” said Dr. Klug. “So, by reducing LDL-C by 60 mg/dL at week 52, you’re reducing your risk of MACE maybe by 30% or 35%.”

All subgroups reaped the same benefit from the intervention, noted Dr. Klug. “Whether you were male or female, under age 65, over age 65, baseline BMI less than median or more than median, White, Black or other, baseline statin intensity, diabetic or not diabetic, diagnosis of FH or not, it made no difference.”

As for secondary outcomes, most patients attained the newer, more stringent guideline-recommended LDL targets. About 94% of all patients achieved a 50% or greater reduction in LDL-C compared to 19% on placebo. These percentages were 90% vs 12% for those at a high risk for CVD and 96% vs 21% for those with CVD or very high risk for CVD.

The treatment also reduced non–high-density lipoprotein cholesterol by 47%, apolipoprotein B by 43%, and Lp(a) by 33%.

Lerodalcibep was well-tolerated, with the number of patients with at least one adverse event similar to placebo (71.6% vs 68.1%) as was the case for the number with at least one serious adverse event (12.4% vs 13.4%).

Injection site reactions were mild to moderate. There was no difference in discontinuation rates due to these reactions (4.2% for the treatment and 4.6% for placebo).

A larger and longer trial to begin later this year should determine if the amount of LDL-C–lowering seen with lerodalcibep translates to greater reductions in cardiovascular events.

The company plans to file an application for approval to the US Food and Drug Administration in the next 2-4 months, said Dr. Klug.
 

 

 

Still Work to Do

During a press briefing, Dave L, Dixon, PharmD, professor and chair, Virginia Commonwealth University School of Pharmacy, Richmond, and member of the ACC Prevention of Cardiovascular Disease Council, congratulated the investigators “on moving this product forward and demonstrating the LDL-lowering efficacy, as well as providing some additional safety and tolerability data.”

He added it’s “clear” from the baseline LDL characteristics that “we have a lot of work to do in terms of helping patients achieve their lipid goals.”

Dr. Dixon noted up to about 30% of patients have some form of statin intolerance. “So, we really have to utilize our non-statin therapies, and unfortunately, we’re not doing a great job of that.”

That the trial enrolled so many women is “fantastic,” said Dr. Dixon, adding the investigators also “did a great job” of enrolling underrepresented minorities.

Having a once-a-month self-injection option “is great” and “fills a nice niche” for patients, said Dr. Dixon.

The study was funded by LIB Therapeutics, which manufactures lerodalcibep. Dr. Klug had no conflicts relevant to this study (he received honoraria from Novartis, Amgen, and Sanofi-Aventis).

A version of this article appeared on Medscape.com.

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Lerodalcibep, a novel, third-generation proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitor, reduced low-density lipoprotein cholesterol (LDL-C) by more than 50% after 1 year in patients with or at a high risk for cardiovascular disease (CVD), new phase 3 results showed.

Newer, more stringent LDL targets in 90% of patients receiving lerodalcibep vs only 16% of those on placebo, despite concurrent treatment with a statin or statin plus ezetimibe.

“This hopefully gives doctors a more practical PCSK9 antagonist that’s small volume, can be administered monthly, and is an alternative to the every 2 week injection of monoclonal antibodies and probably more effective in LDL cholesterol–lowering compared to the small interfering RNA” medicines, study author Eric Klug, MBBCh, MMed, associate professor, Division of Cardiology, University of the Witwatersrand, Johannesburg, South Africa, told this news organization.

The findings from the LIBerate-HR trial were presented at the American College of Cardiology (ACC) Scientific Session 2024.
 

Additional Therapy Needed

The first goal is to get at least a 50% reduction in LDL-C, said Dr. Klug. The ACC, the American Heart Association, and the European Society of Cardiology recommended LDL-C of no more than 55 mg/dL as a goal for patients with CVD or who are at a very high risk for myocardial infarction or stroke and no more than 70 mg/dL for high-risk patients.

Most patients don’t get to that combined goal with statins and ezetimibe and need additional therapy, “and it appears the earlier you give the therapy the better,” said Dr. Klug.

Lerodalcibep is given as a low-dose (1.2-mL) monthly injection and is more convenient than other LDL-C–lowering options, said Dr. Klug. “This is a small-volume molecule that can be delivered subcutaneously once a month and can be kept on the shelf so it doesn’t need to be kept in the fridge, and you can travel with it.”

LIBerate-HR included 922 patients with CVD or at a high or very high risk for myocardial infarction or stroke at 66 centers in 11 countries. Over half (52%) fell into the at-risk category.

The mean age of participants was 64.5 years, 77% were White, and, notably, about 45% were women. Some 84% were taking a statin, 16.6% ezetimibe, a quarter had diabetes, and 10% had the more severe inherited familial hypercholesterolemia (FH).

Patients were randomly assigned to receive monthly 300-mg (1.2-mL) subcutaneous injections of lerodalcibep (n = 615) or placebo (n = 307) for 52 weeks.

The mean LDL-C at baseline was 116.9 mg/dL in the placebo group and 116.3 mg/dL in the treatment group.

The co-primary efficacy endpoints were the percent change from baseline in LDL-C at week 52 and the mean of weeks 50 and 52 (average of the peak and trough dose).

Compared with placebo, lerodalcibep reduced LDL-C by 56.19% at week 52 (P < .0001) and by 62.69% at mean week 50/52 (P < .0001). The absolute decreases were 60.6 mg/dL at week 52 and 74.5 mg/dL for mean week 50/52.
 

Rule of Thumb

“There’s a sort of rule of thumb that for every 40 mg/dL that LDL-C is reduced, you reduce major adverse cardiovascular events (MACE) by 20%-23%,” said Dr. Klug. “So, by reducing LDL-C by 60 mg/dL at week 52, you’re reducing your risk of MACE maybe by 30% or 35%.”

All subgroups reaped the same benefit from the intervention, noted Dr. Klug. “Whether you were male or female, under age 65, over age 65, baseline BMI less than median or more than median, White, Black or other, baseline statin intensity, diabetic or not diabetic, diagnosis of FH or not, it made no difference.”

As for secondary outcomes, most patients attained the newer, more stringent guideline-recommended LDL targets. About 94% of all patients achieved a 50% or greater reduction in LDL-C compared to 19% on placebo. These percentages were 90% vs 12% for those at a high risk for CVD and 96% vs 21% for those with CVD or very high risk for CVD.

The treatment also reduced non–high-density lipoprotein cholesterol by 47%, apolipoprotein B by 43%, and Lp(a) by 33%.

Lerodalcibep was well-tolerated, with the number of patients with at least one adverse event similar to placebo (71.6% vs 68.1%) as was the case for the number with at least one serious adverse event (12.4% vs 13.4%).

Injection site reactions were mild to moderate. There was no difference in discontinuation rates due to these reactions (4.2% for the treatment and 4.6% for placebo).

A larger and longer trial to begin later this year should determine if the amount of LDL-C–lowering seen with lerodalcibep translates to greater reductions in cardiovascular events.

The company plans to file an application for approval to the US Food and Drug Administration in the next 2-4 months, said Dr. Klug.
 

 

 

Still Work to Do

During a press briefing, Dave L, Dixon, PharmD, professor and chair, Virginia Commonwealth University School of Pharmacy, Richmond, and member of the ACC Prevention of Cardiovascular Disease Council, congratulated the investigators “on moving this product forward and demonstrating the LDL-lowering efficacy, as well as providing some additional safety and tolerability data.”

He added it’s “clear” from the baseline LDL characteristics that “we have a lot of work to do in terms of helping patients achieve their lipid goals.”

Dr. Dixon noted up to about 30% of patients have some form of statin intolerance. “So, we really have to utilize our non-statin therapies, and unfortunately, we’re not doing a great job of that.”

That the trial enrolled so many women is “fantastic,” said Dr. Dixon, adding the investigators also “did a great job” of enrolling underrepresented minorities.

Having a once-a-month self-injection option “is great” and “fills a nice niche” for patients, said Dr. Dixon.

The study was funded by LIB Therapeutics, which manufactures lerodalcibep. Dr. Klug had no conflicts relevant to this study (he received honoraria from Novartis, Amgen, and Sanofi-Aventis).

A version of this article appeared on Medscape.com.

 

Lerodalcibep, a novel, third-generation proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitor, reduced low-density lipoprotein cholesterol (LDL-C) by more than 50% after 1 year in patients with or at a high risk for cardiovascular disease (CVD), new phase 3 results showed.

Newer, more stringent LDL targets in 90% of patients receiving lerodalcibep vs only 16% of those on placebo, despite concurrent treatment with a statin or statin plus ezetimibe.

“This hopefully gives doctors a more practical PCSK9 antagonist that’s small volume, can be administered monthly, and is an alternative to the every 2 week injection of monoclonal antibodies and probably more effective in LDL cholesterol–lowering compared to the small interfering RNA” medicines, study author Eric Klug, MBBCh, MMed, associate professor, Division of Cardiology, University of the Witwatersrand, Johannesburg, South Africa, told this news organization.

The findings from the LIBerate-HR trial were presented at the American College of Cardiology (ACC) Scientific Session 2024.
 

Additional Therapy Needed

The first goal is to get at least a 50% reduction in LDL-C, said Dr. Klug. The ACC, the American Heart Association, and the European Society of Cardiology recommended LDL-C of no more than 55 mg/dL as a goal for patients with CVD or who are at a very high risk for myocardial infarction or stroke and no more than 70 mg/dL for high-risk patients.

Most patients don’t get to that combined goal with statins and ezetimibe and need additional therapy, “and it appears the earlier you give the therapy the better,” said Dr. Klug.

Lerodalcibep is given as a low-dose (1.2-mL) monthly injection and is more convenient than other LDL-C–lowering options, said Dr. Klug. “This is a small-volume molecule that can be delivered subcutaneously once a month and can be kept on the shelf so it doesn’t need to be kept in the fridge, and you can travel with it.”

LIBerate-HR included 922 patients with CVD or at a high or very high risk for myocardial infarction or stroke at 66 centers in 11 countries. Over half (52%) fell into the at-risk category.

The mean age of participants was 64.5 years, 77% were White, and, notably, about 45% were women. Some 84% were taking a statin, 16.6% ezetimibe, a quarter had diabetes, and 10% had the more severe inherited familial hypercholesterolemia (FH).

Patients were randomly assigned to receive monthly 300-mg (1.2-mL) subcutaneous injections of lerodalcibep (n = 615) or placebo (n = 307) for 52 weeks.

The mean LDL-C at baseline was 116.9 mg/dL in the placebo group and 116.3 mg/dL in the treatment group.

The co-primary efficacy endpoints were the percent change from baseline in LDL-C at week 52 and the mean of weeks 50 and 52 (average of the peak and trough dose).

Compared with placebo, lerodalcibep reduced LDL-C by 56.19% at week 52 (P < .0001) and by 62.69% at mean week 50/52 (P < .0001). The absolute decreases were 60.6 mg/dL at week 52 and 74.5 mg/dL for mean week 50/52.
 

Rule of Thumb

“There’s a sort of rule of thumb that for every 40 mg/dL that LDL-C is reduced, you reduce major adverse cardiovascular events (MACE) by 20%-23%,” said Dr. Klug. “So, by reducing LDL-C by 60 mg/dL at week 52, you’re reducing your risk of MACE maybe by 30% or 35%.”

All subgroups reaped the same benefit from the intervention, noted Dr. Klug. “Whether you were male or female, under age 65, over age 65, baseline BMI less than median or more than median, White, Black or other, baseline statin intensity, diabetic or not diabetic, diagnosis of FH or not, it made no difference.”

As for secondary outcomes, most patients attained the newer, more stringent guideline-recommended LDL targets. About 94% of all patients achieved a 50% or greater reduction in LDL-C compared to 19% on placebo. These percentages were 90% vs 12% for those at a high risk for CVD and 96% vs 21% for those with CVD or very high risk for CVD.

The treatment also reduced non–high-density lipoprotein cholesterol by 47%, apolipoprotein B by 43%, and Lp(a) by 33%.

Lerodalcibep was well-tolerated, with the number of patients with at least one adverse event similar to placebo (71.6% vs 68.1%) as was the case for the number with at least one serious adverse event (12.4% vs 13.4%).

Injection site reactions were mild to moderate. There was no difference in discontinuation rates due to these reactions (4.2% for the treatment and 4.6% for placebo).

A larger and longer trial to begin later this year should determine if the amount of LDL-C–lowering seen with lerodalcibep translates to greater reductions in cardiovascular events.

The company plans to file an application for approval to the US Food and Drug Administration in the next 2-4 months, said Dr. Klug.
 

 

 

Still Work to Do

During a press briefing, Dave L, Dixon, PharmD, professor and chair, Virginia Commonwealth University School of Pharmacy, Richmond, and member of the ACC Prevention of Cardiovascular Disease Council, congratulated the investigators “on moving this product forward and demonstrating the LDL-lowering efficacy, as well as providing some additional safety and tolerability data.”

He added it’s “clear” from the baseline LDL characteristics that “we have a lot of work to do in terms of helping patients achieve their lipid goals.”

Dr. Dixon noted up to about 30% of patients have some form of statin intolerance. “So, we really have to utilize our non-statin therapies, and unfortunately, we’re not doing a great job of that.”

That the trial enrolled so many women is “fantastic,” said Dr. Dixon, adding the investigators also “did a great job” of enrolling underrepresented minorities.

Having a once-a-month self-injection option “is great” and “fills a nice niche” for patients, said Dr. Dixon.

The study was funded by LIB Therapeutics, which manufactures lerodalcibep. Dr. Klug had no conflicts relevant to this study (he received honoraria from Novartis, Amgen, and Sanofi-Aventis).

A version of this article appeared on Medscape.com.

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Heart Failure the Most Common Complication of Atrial Fibrillation, Not Stroke

Article Type
Changed
Tue, 04/23/2024 - 15:20

 

FROM BMJ

The lifetime risk of atrial fibrillation (AF) increased from 2000 to 2022 from one in four to one in three, a Danish population-based study of temporal trends found.

Heart failure was the most frequent complication linked to this arrhythmia, with a lifetime risk of two in five, twice that of stroke, according to investigators led by Nicklas Vinter, MD, PhD, a postdoctoral researcher at the Danish Center for Health Service Research in the Department of Clinical Medicine at Aalborg University, Denmark.

Published in BMJ, the study found the lifetime risks of post-AF stroke, ischemic stroke, and myocardial infarction improved only modestly over time and remained high, with virtually no improvement in the lifetime risk of heart failure.

Agata Lenczewska-Madsen, Regional Hospital Central Jutland
Dr. Nicklas Vinter


“Our work provides novel lifetime risk estimates that are instrumental in facilitating effective risk communication between patients and their physicians,” Dr. Vinter said in an interview. “The knowledge of risks from a lifelong perspective may serve as a motivator for patients to commence or intensify preventive efforts.” AF patients could, for example, adopt healthier lifestyles or adhere to prescribed medications, Dr. Vinter explained.

“The substantial lifetime risk of heart failure following atrial fibrillation necessitates heightened attention to its prevention and early detection,” Dr. Vinter said. “Furthermore, the high lifetime risk of stroke remains a critical complication, which highlights the importance of continuous attention to the initiation and maintenance of oral anticoagulation therapy.”
 

The Study

The cohort consisted of 3.5 million individuals (51.7% women) who did not have AF as of age 45 or older. These individuals were followed until incident AF, migration, death, or end of follow-up, whichever came first.

All 362,721 individuals with incident AF (53.6% men) but no prevalent complication were further followed over two time periods (2000-2010 and 2011-2020) until incident heart failure, stroke, or myocardial infarction.

Among the findings:

  • Lifetime AF risk increased from 24.2% in 2000-2010 to 30.9% in 2011-2022, for a difference of 6.7% (95% confidence interval [CI], 6.5%-6.8%).
  • Lifetime AF risk rose across all subgroups over time, with a larger increase in men and individuals with heart failure, myocardial infarction, stroke, diabetes, and chronic kidney disease.
  • Lifetime risk of heart failure was 42.9% in 2000-2010 and 42.1% in 2011-2022, for a difference of −0.8% (95% CI, −3.8% to 2.2%).
  • The lifetime risks of post-AF stroke and of myocardial infarction decreased slightly between the two periods, from 22.4% to 19.9% for stroke (difference −2.5%, 95% CI, −4.2% to −0.7%) and from 13.7% to 9.8% for myocardial infarction (−3.9%, 95% CI, −5.3% to −2.4%). No differential decrease between men and women emerged.

“Our novel quantification of the long-term downstream consequences of atrial fibrillation highlights the critical need for treatments to further decrease stroke risk as well as for heart failure prevention strategies among patients with atrial fibrillation,” the Danish researchers wrote.

Offering an outsider’s perspective, John P. Higgins, MD, MBA, MPhil, a sports cardiologist at McGovern Medical School at The University of Texas Health Science Center at Houston, said, “Think of atrial fibrillation as a barometer of underlying stress on the heart. When blood pressure is high, or a patient has underlying asymptomatic coronary artery disease or heart failure, they are more likely to have episodes of atrial fibrillation.”

University of Texas Health Science Center at Houston
Dr. John P. Higgins


According to Dr. Higgins, risk factors for AF are underappreciated in the United States and elsewhere, and primary care doctors need to be aware of them. “We should try to identify these risk factors and do primary prevention to improve risk factors to reduce the progression to heart failure and myocardial infarction and stroke. But lifelong prevention is even better, he added. “Doing things to prevent actually getting risk factors in the first place. So a healthy lifestyle including exercise, diet, hydration, sleep, relaxation, social contact, and a little sunlight might be the long-term keys and starting them at a young age, too.”

In an accompanying editorial, Jianhua Wu, PhD, a professor of biostatistics and health data science with the Wolfson Institute of Population Health at Queen Mary University of London, and a colleague, cited the study’s robust observational research and called the analysis noteworthy for its quantification of the long-term risks of post-AF sequelae. They cautioned, however, that its grouping into two 10-year periods (2000-2010 and 2011-2020) came at the cost of losing temporal resolution. They also called out the lack of reporting on the ethnic composition of the study population, a factor that influences lifetime AF risk, and the absence of subgroup analysis by socioeconomic status, which affects incidence and outcomes.

Dr. Wu
Dr. Jianhua Wu


The editorialists noted that while interventions to prevent stroke dominated AF research and guidelines during the study time period, no evidence suggests these interventions can prevent incident heart failure. “Alignment of both randomised clinical trials and guidelines to better reflect the needs of the real-world population with atrial fibrillation is necessary because further improvements to patient prognosis are likely to require a broader perspective on atrial fibrillation management beyond prevention of stroke,” they wrote.

In the meantime this study “challenges research priorities and guideline design, and raises critical questions for the research and clinical communities about how the growing burden of atrial fibrillation can be stopped,” they wrote.

This work was supported by the Danish Cardiovascular Academy, which is funded by the Novo Nordisk Foundation, and The Danish Heart Foundation. Dr. Vinter has been an advisory board member and consultant for AstraZeneca and has an institutional research grant from BMS/Pfizer unrelated to the current study. He reported personal consulting fees from BMS and Pfizer. Other coauthors disclosed research support from and/or consulting work for private industry, as well as grants from not-for-profit research-funding organizations. Dr. Higgins had no competing interest to declare. The editorial writers had no relevant financial interests to declare. Dr. Wu is supported by Barts Charity.

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FROM BMJ

The lifetime risk of atrial fibrillation (AF) increased from 2000 to 2022 from one in four to one in three, a Danish population-based study of temporal trends found.

Heart failure was the most frequent complication linked to this arrhythmia, with a lifetime risk of two in five, twice that of stroke, according to investigators led by Nicklas Vinter, MD, PhD, a postdoctoral researcher at the Danish Center for Health Service Research in the Department of Clinical Medicine at Aalborg University, Denmark.

Published in BMJ, the study found the lifetime risks of post-AF stroke, ischemic stroke, and myocardial infarction improved only modestly over time and remained high, with virtually no improvement in the lifetime risk of heart failure.

Agata Lenczewska-Madsen, Regional Hospital Central Jutland
Dr. Nicklas Vinter


“Our work provides novel lifetime risk estimates that are instrumental in facilitating effective risk communication between patients and their physicians,” Dr. Vinter said in an interview. “The knowledge of risks from a lifelong perspective may serve as a motivator for patients to commence or intensify preventive efforts.” AF patients could, for example, adopt healthier lifestyles or adhere to prescribed medications, Dr. Vinter explained.

“The substantial lifetime risk of heart failure following atrial fibrillation necessitates heightened attention to its prevention and early detection,” Dr. Vinter said. “Furthermore, the high lifetime risk of stroke remains a critical complication, which highlights the importance of continuous attention to the initiation and maintenance of oral anticoagulation therapy.”
 

The Study

The cohort consisted of 3.5 million individuals (51.7% women) who did not have AF as of age 45 or older. These individuals were followed until incident AF, migration, death, or end of follow-up, whichever came first.

All 362,721 individuals with incident AF (53.6% men) but no prevalent complication were further followed over two time periods (2000-2010 and 2011-2020) until incident heart failure, stroke, or myocardial infarction.

Among the findings:

  • Lifetime AF risk increased from 24.2% in 2000-2010 to 30.9% in 2011-2022, for a difference of 6.7% (95% confidence interval [CI], 6.5%-6.8%).
  • Lifetime AF risk rose across all subgroups over time, with a larger increase in men and individuals with heart failure, myocardial infarction, stroke, diabetes, and chronic kidney disease.
  • Lifetime risk of heart failure was 42.9% in 2000-2010 and 42.1% in 2011-2022, for a difference of −0.8% (95% CI, −3.8% to 2.2%).
  • The lifetime risks of post-AF stroke and of myocardial infarction decreased slightly between the two periods, from 22.4% to 19.9% for stroke (difference −2.5%, 95% CI, −4.2% to −0.7%) and from 13.7% to 9.8% for myocardial infarction (−3.9%, 95% CI, −5.3% to −2.4%). No differential decrease between men and women emerged.

“Our novel quantification of the long-term downstream consequences of atrial fibrillation highlights the critical need for treatments to further decrease stroke risk as well as for heart failure prevention strategies among patients with atrial fibrillation,” the Danish researchers wrote.

Offering an outsider’s perspective, John P. Higgins, MD, MBA, MPhil, a sports cardiologist at McGovern Medical School at The University of Texas Health Science Center at Houston, said, “Think of atrial fibrillation as a barometer of underlying stress on the heart. When blood pressure is high, or a patient has underlying asymptomatic coronary artery disease or heart failure, they are more likely to have episodes of atrial fibrillation.”

University of Texas Health Science Center at Houston
Dr. John P. Higgins


According to Dr. Higgins, risk factors for AF are underappreciated in the United States and elsewhere, and primary care doctors need to be aware of them. “We should try to identify these risk factors and do primary prevention to improve risk factors to reduce the progression to heart failure and myocardial infarction and stroke. But lifelong prevention is even better, he added. “Doing things to prevent actually getting risk factors in the first place. So a healthy lifestyle including exercise, diet, hydration, sleep, relaxation, social contact, and a little sunlight might be the long-term keys and starting them at a young age, too.”

In an accompanying editorial, Jianhua Wu, PhD, a professor of biostatistics and health data science with the Wolfson Institute of Population Health at Queen Mary University of London, and a colleague, cited the study’s robust observational research and called the analysis noteworthy for its quantification of the long-term risks of post-AF sequelae. They cautioned, however, that its grouping into two 10-year periods (2000-2010 and 2011-2020) came at the cost of losing temporal resolution. They also called out the lack of reporting on the ethnic composition of the study population, a factor that influences lifetime AF risk, and the absence of subgroup analysis by socioeconomic status, which affects incidence and outcomes.

Dr. Wu
Dr. Jianhua Wu


The editorialists noted that while interventions to prevent stroke dominated AF research and guidelines during the study time period, no evidence suggests these interventions can prevent incident heart failure. “Alignment of both randomised clinical trials and guidelines to better reflect the needs of the real-world population with atrial fibrillation is necessary because further improvements to patient prognosis are likely to require a broader perspective on atrial fibrillation management beyond prevention of stroke,” they wrote.

In the meantime this study “challenges research priorities and guideline design, and raises critical questions for the research and clinical communities about how the growing burden of atrial fibrillation can be stopped,” they wrote.

This work was supported by the Danish Cardiovascular Academy, which is funded by the Novo Nordisk Foundation, and The Danish Heart Foundation. Dr. Vinter has been an advisory board member and consultant for AstraZeneca and has an institutional research grant from BMS/Pfizer unrelated to the current study. He reported personal consulting fees from BMS and Pfizer. Other coauthors disclosed research support from and/or consulting work for private industry, as well as grants from not-for-profit research-funding organizations. Dr. Higgins had no competing interest to declare. The editorial writers had no relevant financial interests to declare. Dr. Wu is supported by Barts Charity.

 

FROM BMJ

The lifetime risk of atrial fibrillation (AF) increased from 2000 to 2022 from one in four to one in three, a Danish population-based study of temporal trends found.

Heart failure was the most frequent complication linked to this arrhythmia, with a lifetime risk of two in five, twice that of stroke, according to investigators led by Nicklas Vinter, MD, PhD, a postdoctoral researcher at the Danish Center for Health Service Research in the Department of Clinical Medicine at Aalborg University, Denmark.

Published in BMJ, the study found the lifetime risks of post-AF stroke, ischemic stroke, and myocardial infarction improved only modestly over time and remained high, with virtually no improvement in the lifetime risk of heart failure.

Agata Lenczewska-Madsen, Regional Hospital Central Jutland
Dr. Nicklas Vinter


“Our work provides novel lifetime risk estimates that are instrumental in facilitating effective risk communication between patients and their physicians,” Dr. Vinter said in an interview. “The knowledge of risks from a lifelong perspective may serve as a motivator for patients to commence or intensify preventive efforts.” AF patients could, for example, adopt healthier lifestyles or adhere to prescribed medications, Dr. Vinter explained.

“The substantial lifetime risk of heart failure following atrial fibrillation necessitates heightened attention to its prevention and early detection,” Dr. Vinter said. “Furthermore, the high lifetime risk of stroke remains a critical complication, which highlights the importance of continuous attention to the initiation and maintenance of oral anticoagulation therapy.”
 

The Study

The cohort consisted of 3.5 million individuals (51.7% women) who did not have AF as of age 45 or older. These individuals were followed until incident AF, migration, death, or end of follow-up, whichever came first.

All 362,721 individuals with incident AF (53.6% men) but no prevalent complication were further followed over two time periods (2000-2010 and 2011-2020) until incident heart failure, stroke, or myocardial infarction.

Among the findings:

  • Lifetime AF risk increased from 24.2% in 2000-2010 to 30.9% in 2011-2022, for a difference of 6.7% (95% confidence interval [CI], 6.5%-6.8%).
  • Lifetime AF risk rose across all subgroups over time, with a larger increase in men and individuals with heart failure, myocardial infarction, stroke, diabetes, and chronic kidney disease.
  • Lifetime risk of heart failure was 42.9% in 2000-2010 and 42.1% in 2011-2022, for a difference of −0.8% (95% CI, −3.8% to 2.2%).
  • The lifetime risks of post-AF stroke and of myocardial infarction decreased slightly between the two periods, from 22.4% to 19.9% for stroke (difference −2.5%, 95% CI, −4.2% to −0.7%) and from 13.7% to 9.8% for myocardial infarction (−3.9%, 95% CI, −5.3% to −2.4%). No differential decrease between men and women emerged.

“Our novel quantification of the long-term downstream consequences of atrial fibrillation highlights the critical need for treatments to further decrease stroke risk as well as for heart failure prevention strategies among patients with atrial fibrillation,” the Danish researchers wrote.

Offering an outsider’s perspective, John P. Higgins, MD, MBA, MPhil, a sports cardiologist at McGovern Medical School at The University of Texas Health Science Center at Houston, said, “Think of atrial fibrillation as a barometer of underlying stress on the heart. When blood pressure is high, or a patient has underlying asymptomatic coronary artery disease or heart failure, they are more likely to have episodes of atrial fibrillation.”

University of Texas Health Science Center at Houston
Dr. John P. Higgins


According to Dr. Higgins, risk factors for AF are underappreciated in the United States and elsewhere, and primary care doctors need to be aware of them. “We should try to identify these risk factors and do primary prevention to improve risk factors to reduce the progression to heart failure and myocardial infarction and stroke. But lifelong prevention is even better, he added. “Doing things to prevent actually getting risk factors in the first place. So a healthy lifestyle including exercise, diet, hydration, sleep, relaxation, social contact, and a little sunlight might be the long-term keys and starting them at a young age, too.”

In an accompanying editorial, Jianhua Wu, PhD, a professor of biostatistics and health data science with the Wolfson Institute of Population Health at Queen Mary University of London, and a colleague, cited the study’s robust observational research and called the analysis noteworthy for its quantification of the long-term risks of post-AF sequelae. They cautioned, however, that its grouping into two 10-year periods (2000-2010 and 2011-2020) came at the cost of losing temporal resolution. They also called out the lack of reporting on the ethnic composition of the study population, a factor that influences lifetime AF risk, and the absence of subgroup analysis by socioeconomic status, which affects incidence and outcomes.

Dr. Wu
Dr. Jianhua Wu


The editorialists noted that while interventions to prevent stroke dominated AF research and guidelines during the study time period, no evidence suggests these interventions can prevent incident heart failure. “Alignment of both randomised clinical trials and guidelines to better reflect the needs of the real-world population with atrial fibrillation is necessary because further improvements to patient prognosis are likely to require a broader perspective on atrial fibrillation management beyond prevention of stroke,” they wrote.

In the meantime this study “challenges research priorities and guideline design, and raises critical questions for the research and clinical communities about how the growing burden of atrial fibrillation can be stopped,” they wrote.

This work was supported by the Danish Cardiovascular Academy, which is funded by the Novo Nordisk Foundation, and The Danish Heart Foundation. Dr. Vinter has been an advisory board member and consultant for AstraZeneca and has an institutional research grant from BMS/Pfizer unrelated to the current study. He reported personal consulting fees from BMS and Pfizer. Other coauthors disclosed research support from and/or consulting work for private industry, as well as grants from not-for-profit research-funding organizations. Dr. Higgins had no competing interest to declare. The editorial writers had no relevant financial interests to declare. Dr. Wu is supported by Barts Charity.

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Low-Fat Vegan Diet May Improve Cardiometabolic Health in T1D

Article Type
Changed
Tue, 04/16/2024 - 11:42

 

TOPLINE:

A low-fat vegan diet — high in fiber and carbohydrates and moderate in protein — reduces insulin requirement, increases insulin sensitivity, and improves glycemic control in individuals with type 1 diabetes (T1D) compared with a conventional portion-controlled diet.

METHODOLOGY:

  • The effects of a low-fat vegan diet (without carbohydrate or portion restriction) were compared with those of a conventional portion-controlled, carbohydrate-controlled diet in 58 patients with T1D (age, ≥ 18 years) who had been receiving stable insulin treatment for the past 3 months.
  • Participants were randomly assigned to receive either the vegan diet (n = 29), comprising vegetables, grains, legumes, and fruits, or the portion-controlled diet (n = 29), which reduced daily energy intake by 500-1000 kcal/d in participants with overweight while maintaining a stable carbohydrate intake.
  • The primary clinical outcomes were insulin requirement (total daily dose of insulin), insulin sensitivity, and glycemic control (A1c).
  • Other assessments included the blood, lipid profile, blood urea nitrogen, blood urea nitrogen-to-creatinine ratio, and body weight.

TAKEAWAY:

  • The study was completed by 18 participants in the vegan-diet group and 17 in the portion-controlled group.
  • In the vegan group, the total daily dose of insulin decreased by 12.1 units/d (P = .007) and insulin sensitivity increased by 6.6 g of carbohydrate per unit of insulin on average (P = .002), with no significant changes in the portion-controlled diet group.
  • Participants on the vegan diet had lower levels of total and low-density lipoprotein cholesterol and blood urea nitrogen and a lower blood urea nitrogen-to-creatinine ratio (P for all < .001), whereas both vegan and portion-controlled groups had lower A1c levels.
  • Body weight decreased by 5.2 kg (P < .001) in the vegan group; there were no significant changes in the portion-controlled group.
  • For every 1-kg weight loss, there was a 2.16-unit decrease in the insulin total daily dose and a 0.9-unit increase in insulin sensitivity.

IN PRACTICE:

“This study provides substantial support for a low-fat vegan diet that is high in fiber and carbohydrates, low in fat, and moderate in protein” and suggests the potential therapeutic use of this diet in type 1 diabetes management, the authors wrote.

SOURCE:

The study led by Hana Kahleova, MD, PhD, Physicians Committee for Responsible Medicine, Washington, was published in Clinical Diabetes.

LIMITATIONS:

Dietary intake was recorded on the basis of self-reported data. A higher attrition rate was observed due to meal and blood glucose monitoring. The findings may have limited generalizability as the study participants comprised those seeking help for T1D.

DISCLOSURES:

The study was supported by the Physicians Committee for Responsible Medicine and a grant from the Institute for Technology in Healthcare. Some authors reported receiving compensation, being cofounders of a coaching program, writing books, providing nutrition coaching, giving lectures, or receiving royalties and honoraria from various sources.

A version of this article appeared on Medscape.com.

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TOPLINE:

A low-fat vegan diet — high in fiber and carbohydrates and moderate in protein — reduces insulin requirement, increases insulin sensitivity, and improves glycemic control in individuals with type 1 diabetes (T1D) compared with a conventional portion-controlled diet.

METHODOLOGY:

  • The effects of a low-fat vegan diet (without carbohydrate or portion restriction) were compared with those of a conventional portion-controlled, carbohydrate-controlled diet in 58 patients with T1D (age, ≥ 18 years) who had been receiving stable insulin treatment for the past 3 months.
  • Participants were randomly assigned to receive either the vegan diet (n = 29), comprising vegetables, grains, legumes, and fruits, or the portion-controlled diet (n = 29), which reduced daily energy intake by 500-1000 kcal/d in participants with overweight while maintaining a stable carbohydrate intake.
  • The primary clinical outcomes were insulin requirement (total daily dose of insulin), insulin sensitivity, and glycemic control (A1c).
  • Other assessments included the blood, lipid profile, blood urea nitrogen, blood urea nitrogen-to-creatinine ratio, and body weight.

TAKEAWAY:

  • The study was completed by 18 participants in the vegan-diet group and 17 in the portion-controlled group.
  • In the vegan group, the total daily dose of insulin decreased by 12.1 units/d (P = .007) and insulin sensitivity increased by 6.6 g of carbohydrate per unit of insulin on average (P = .002), with no significant changes in the portion-controlled diet group.
  • Participants on the vegan diet had lower levels of total and low-density lipoprotein cholesterol and blood urea nitrogen and a lower blood urea nitrogen-to-creatinine ratio (P for all < .001), whereas both vegan and portion-controlled groups had lower A1c levels.
  • Body weight decreased by 5.2 kg (P < .001) in the vegan group; there were no significant changes in the portion-controlled group.
  • For every 1-kg weight loss, there was a 2.16-unit decrease in the insulin total daily dose and a 0.9-unit increase in insulin sensitivity.

IN PRACTICE:

“This study provides substantial support for a low-fat vegan diet that is high in fiber and carbohydrates, low in fat, and moderate in protein” and suggests the potential therapeutic use of this diet in type 1 diabetes management, the authors wrote.

SOURCE:

The study led by Hana Kahleova, MD, PhD, Physicians Committee for Responsible Medicine, Washington, was published in Clinical Diabetes.

LIMITATIONS:

Dietary intake was recorded on the basis of self-reported data. A higher attrition rate was observed due to meal and blood glucose monitoring. The findings may have limited generalizability as the study participants comprised those seeking help for T1D.

DISCLOSURES:

The study was supported by the Physicians Committee for Responsible Medicine and a grant from the Institute for Technology in Healthcare. Some authors reported receiving compensation, being cofounders of a coaching program, writing books, providing nutrition coaching, giving lectures, or receiving royalties and honoraria from various sources.

A version of this article appeared on Medscape.com.

 

TOPLINE:

A low-fat vegan diet — high in fiber and carbohydrates and moderate in protein — reduces insulin requirement, increases insulin sensitivity, and improves glycemic control in individuals with type 1 diabetes (T1D) compared with a conventional portion-controlled diet.

METHODOLOGY:

  • The effects of a low-fat vegan diet (without carbohydrate or portion restriction) were compared with those of a conventional portion-controlled, carbohydrate-controlled diet in 58 patients with T1D (age, ≥ 18 years) who had been receiving stable insulin treatment for the past 3 months.
  • Participants were randomly assigned to receive either the vegan diet (n = 29), comprising vegetables, grains, legumes, and fruits, or the portion-controlled diet (n = 29), which reduced daily energy intake by 500-1000 kcal/d in participants with overweight while maintaining a stable carbohydrate intake.
  • The primary clinical outcomes were insulin requirement (total daily dose of insulin), insulin sensitivity, and glycemic control (A1c).
  • Other assessments included the blood, lipid profile, blood urea nitrogen, blood urea nitrogen-to-creatinine ratio, and body weight.

TAKEAWAY:

  • The study was completed by 18 participants in the vegan-diet group and 17 in the portion-controlled group.
  • In the vegan group, the total daily dose of insulin decreased by 12.1 units/d (P = .007) and insulin sensitivity increased by 6.6 g of carbohydrate per unit of insulin on average (P = .002), with no significant changes in the portion-controlled diet group.
  • Participants on the vegan diet had lower levels of total and low-density lipoprotein cholesterol and blood urea nitrogen and a lower blood urea nitrogen-to-creatinine ratio (P for all < .001), whereas both vegan and portion-controlled groups had lower A1c levels.
  • Body weight decreased by 5.2 kg (P < .001) in the vegan group; there were no significant changes in the portion-controlled group.
  • For every 1-kg weight loss, there was a 2.16-unit decrease in the insulin total daily dose and a 0.9-unit increase in insulin sensitivity.

IN PRACTICE:

“This study provides substantial support for a low-fat vegan diet that is high in fiber and carbohydrates, low in fat, and moderate in protein” and suggests the potential therapeutic use of this diet in type 1 diabetes management, the authors wrote.

SOURCE:

The study led by Hana Kahleova, MD, PhD, Physicians Committee for Responsible Medicine, Washington, was published in Clinical Diabetes.

LIMITATIONS:

Dietary intake was recorded on the basis of self-reported data. A higher attrition rate was observed due to meal and blood glucose monitoring. The findings may have limited generalizability as the study participants comprised those seeking help for T1D.

DISCLOSURES:

The study was supported by the Physicians Committee for Responsible Medicine and a grant from the Institute for Technology in Healthcare. Some authors reported receiving compensation, being cofounders of a coaching program, writing books, providing nutrition coaching, giving lectures, or receiving royalties and honoraria from various sources.

A version of this article appeared on Medscape.com.

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Antidiabetic Drugs That Lower Stroke Risk Do So By Unclear Mechanisms

Article Type
Changed
Mon, 04/15/2024 - 16:42

Unlike traditional antidiabetic therapies, which have never been associated with a significant reduction in stroke in a major trial, some of the newer drugs are showing that benefit, but the protection is not linked to tighter glycemic control.

In patients with type 2 diabetes mellitus (T2DM), the evidence is strong that “they are not working through glycemic control per se,” according to Larry B. Goldstein, MD, chair of neurology, University of Kentucky School of Medicine, Louisville. “But it is not yet clear what the mechanism of benefit is.”

Ted Bosworth/MDedge News
Dr. Larry B. Goldstein


In the past, several large randomized studies, such as the ACCORD trial, provided compelling evidence that tighter glycemic control does not translate into meaningful protection across stroke. Performed before many of the modern therapies were available, this lack of protection was observed with essentially “no heterogeneity across specific drugs,” according to Dr. Goldstein.

In long-term results from ACCORD, published in 2011, the odds ratio for a fatal or nonfatal stroke was a nonsignificant 0.97 in favor of tight glycemic control relative to standard control. The wide confidence intervals ruled out any hint of statistical significance (95% CI, 0.77-1.33; P = .85). Dr. Goldstein provided data from numerous other studies and meta-analyses that drew the same conclusion.
 

Stroke Prevention With Antidiabetic Drugs

“What has changed is that we have new ways of glycemic control, and some of these do show protection against stroke,” Dr. Goldstein said. Yet, the newer drugs do not do a better job at sustained reductions of HbA1c or other measures of reaching lower blood glucose reductions when adherence is similar.

“The level of glucose control with the newer agents is really about the same,” Dr. Goldstein said at the annual meeting of the American Academy of Neurology, where he led a symposium called Controversies in Stroke Treatment and Prevention.

The newer agents, such as sodium glucose co-transport-2 inhibitors (SGLT-2i) and glucagon-like peptide-1 receptor agonists (GLP-1RA), have been associated with significant and clinically meaningful reductions in cardiovascular events. However, it is not clear that even these two medications perform similarly for stroke prevention specifically.

Of these two drug classes, Dr. Goldstein said the evidence most strongly supports GLP-1 receptor agonists. He cited one meta-analysis of eight randomized studies that calculated a risk reduction of about 15% whether calculated for fatal or nonfatal strokes. For each the protection was highly statistically significant (P = .0002 and P < .001, respectively).

In contrast, the effect of SGLT-2 inhibitors is weaker. In a study that distilled data from large cardiovascular trials with GLP-1RA, SGLT2i, dipeptidyl peptidase-4 inhibitors (DPP4i), and pioglitazone, a thiazolidinedione, only GLP-1RA drugs were associated with a highly significant (P < .001) reduction in risk of stroke. The risk reduction for pioglitazone reached significance (P = .025), but there was no signal of risk reduction for SGLT2i (P = .88) or for DPP4i (P = .5).
 

Weight Loss Is Potential Mechanism

Looking to explain the protection from stroke associated with some of the newer antidiabetic therapies, Gordon Kelley, MD, who leads the stroke program for AdventHealth Medical Group, Shawnee Mission, Kansas, suggested that weight loss is probably important.

“In our group, we work as a team to manage stroke risk in patients with diabetes, so I am not much involved in the choice of antidiabetic therapies, but it does seem that SGLT2 inhibitors and the GLP-1 receptor agonists share weight loss as an effect beyond glucose control,” he said.

Dr. Goldstein agreed that weight loss is a potential contributor to the cardiovascular benefits of GLP-1RA and SGLT2i, but he indicated that it might not help explain the reduction in stroke, an effect demonstrated repeatedly with GLP-1RA but inconsistently with SGLT2i.

The argument against weight loss as the critical mechanism of stroke prevention from newer antidiabetic drugs is strengthened by studies that suggest weight loss with SGLT2i appears to be even better than on GLP-1RA. In a study published in a pharmacy journal, weight loss was about twice as great among T2DM patients after 6 months of treatment managed with SGLT2i relative to those on a GLP-1RA (-2.8 vs 1.15 kg; P = .014).
 

Newer Antidiabetic Agents Guideline Recommended

In the 2019 American College of Cardiology/American Heart Association guidelines on the Primary Prevention of Cardiovascular Disease, stroke reduction is not discussed as an isolated risk, but these guidelines do recommend GLP-1RA or SGLT2i after metformin for glycemic control in T2DM patients with atherosclerotic cardiovascular disease (ASCVD) risk factors. This is based on evidence that drugs of both classes reduce risk for ASCVD events. The risk reduction has been particularly strong for heart failure.

For the risk of stroke specifically in patients with T2DM, Dr. Goldstein recommended calculating the ASCVD risk with the simple but well validated ACC risk calculator that is available online and is quickly completed when values for patient risk factors are readily available. For those with greater than 10% risk of an event in the next 10 years, he thinks GLP-1RA are a reasonable choice for prevention of stroke and other ASCVD events.

“GLP-1RA is mentioned in the guidelines, so this is supported,” said Dr. Goldstein, although adding that his choice of this class over SGLT2i is a personal if informed recommendation. He believes that the data favor GLP-1RA even if the exact mechanism of this protection is yet to be identified.

Dr. Goldstein and Dr. Kelley report no potential conflicts of interest.

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Unlike traditional antidiabetic therapies, which have never been associated with a significant reduction in stroke in a major trial, some of the newer drugs are showing that benefit, but the protection is not linked to tighter glycemic control.

In patients with type 2 diabetes mellitus (T2DM), the evidence is strong that “they are not working through glycemic control per se,” according to Larry B. Goldstein, MD, chair of neurology, University of Kentucky School of Medicine, Louisville. “But it is not yet clear what the mechanism of benefit is.”

Ted Bosworth/MDedge News
Dr. Larry B. Goldstein


In the past, several large randomized studies, such as the ACCORD trial, provided compelling evidence that tighter glycemic control does not translate into meaningful protection across stroke. Performed before many of the modern therapies were available, this lack of protection was observed with essentially “no heterogeneity across specific drugs,” according to Dr. Goldstein.

In long-term results from ACCORD, published in 2011, the odds ratio for a fatal or nonfatal stroke was a nonsignificant 0.97 in favor of tight glycemic control relative to standard control. The wide confidence intervals ruled out any hint of statistical significance (95% CI, 0.77-1.33; P = .85). Dr. Goldstein provided data from numerous other studies and meta-analyses that drew the same conclusion.
 

Stroke Prevention With Antidiabetic Drugs

“What has changed is that we have new ways of glycemic control, and some of these do show protection against stroke,” Dr. Goldstein said. Yet, the newer drugs do not do a better job at sustained reductions of HbA1c or other measures of reaching lower blood glucose reductions when adherence is similar.

“The level of glucose control with the newer agents is really about the same,” Dr. Goldstein said at the annual meeting of the American Academy of Neurology, where he led a symposium called Controversies in Stroke Treatment and Prevention.

The newer agents, such as sodium glucose co-transport-2 inhibitors (SGLT-2i) and glucagon-like peptide-1 receptor agonists (GLP-1RA), have been associated with significant and clinically meaningful reductions in cardiovascular events. However, it is not clear that even these two medications perform similarly for stroke prevention specifically.

Of these two drug classes, Dr. Goldstein said the evidence most strongly supports GLP-1 receptor agonists. He cited one meta-analysis of eight randomized studies that calculated a risk reduction of about 15% whether calculated for fatal or nonfatal strokes. For each the protection was highly statistically significant (P = .0002 and P < .001, respectively).

In contrast, the effect of SGLT-2 inhibitors is weaker. In a study that distilled data from large cardiovascular trials with GLP-1RA, SGLT2i, dipeptidyl peptidase-4 inhibitors (DPP4i), and pioglitazone, a thiazolidinedione, only GLP-1RA drugs were associated with a highly significant (P < .001) reduction in risk of stroke. The risk reduction for pioglitazone reached significance (P = .025), but there was no signal of risk reduction for SGLT2i (P = .88) or for DPP4i (P = .5).
 

Weight Loss Is Potential Mechanism

Looking to explain the protection from stroke associated with some of the newer antidiabetic therapies, Gordon Kelley, MD, who leads the stroke program for AdventHealth Medical Group, Shawnee Mission, Kansas, suggested that weight loss is probably important.

“In our group, we work as a team to manage stroke risk in patients with diabetes, so I am not much involved in the choice of antidiabetic therapies, but it does seem that SGLT2 inhibitors and the GLP-1 receptor agonists share weight loss as an effect beyond glucose control,” he said.

Dr. Goldstein agreed that weight loss is a potential contributor to the cardiovascular benefits of GLP-1RA and SGLT2i, but he indicated that it might not help explain the reduction in stroke, an effect demonstrated repeatedly with GLP-1RA but inconsistently with SGLT2i.

The argument against weight loss as the critical mechanism of stroke prevention from newer antidiabetic drugs is strengthened by studies that suggest weight loss with SGLT2i appears to be even better than on GLP-1RA. In a study published in a pharmacy journal, weight loss was about twice as great among T2DM patients after 6 months of treatment managed with SGLT2i relative to those on a GLP-1RA (-2.8 vs 1.15 kg; P = .014).
 

Newer Antidiabetic Agents Guideline Recommended

In the 2019 American College of Cardiology/American Heart Association guidelines on the Primary Prevention of Cardiovascular Disease, stroke reduction is not discussed as an isolated risk, but these guidelines do recommend GLP-1RA or SGLT2i after metformin for glycemic control in T2DM patients with atherosclerotic cardiovascular disease (ASCVD) risk factors. This is based on evidence that drugs of both classes reduce risk for ASCVD events. The risk reduction has been particularly strong for heart failure.

For the risk of stroke specifically in patients with T2DM, Dr. Goldstein recommended calculating the ASCVD risk with the simple but well validated ACC risk calculator that is available online and is quickly completed when values for patient risk factors are readily available. For those with greater than 10% risk of an event in the next 10 years, he thinks GLP-1RA are a reasonable choice for prevention of stroke and other ASCVD events.

“GLP-1RA is mentioned in the guidelines, so this is supported,” said Dr. Goldstein, although adding that his choice of this class over SGLT2i is a personal if informed recommendation. He believes that the data favor GLP-1RA even if the exact mechanism of this protection is yet to be identified.

Dr. Goldstein and Dr. Kelley report no potential conflicts of interest.

Unlike traditional antidiabetic therapies, which have never been associated with a significant reduction in stroke in a major trial, some of the newer drugs are showing that benefit, but the protection is not linked to tighter glycemic control.

In patients with type 2 diabetes mellitus (T2DM), the evidence is strong that “they are not working through glycemic control per se,” according to Larry B. Goldstein, MD, chair of neurology, University of Kentucky School of Medicine, Louisville. “But it is not yet clear what the mechanism of benefit is.”

Ted Bosworth/MDedge News
Dr. Larry B. Goldstein


In the past, several large randomized studies, such as the ACCORD trial, provided compelling evidence that tighter glycemic control does not translate into meaningful protection across stroke. Performed before many of the modern therapies were available, this lack of protection was observed with essentially “no heterogeneity across specific drugs,” according to Dr. Goldstein.

In long-term results from ACCORD, published in 2011, the odds ratio for a fatal or nonfatal stroke was a nonsignificant 0.97 in favor of tight glycemic control relative to standard control. The wide confidence intervals ruled out any hint of statistical significance (95% CI, 0.77-1.33; P = .85). Dr. Goldstein provided data from numerous other studies and meta-analyses that drew the same conclusion.
 

Stroke Prevention With Antidiabetic Drugs

“What has changed is that we have new ways of glycemic control, and some of these do show protection against stroke,” Dr. Goldstein said. Yet, the newer drugs do not do a better job at sustained reductions of HbA1c or other measures of reaching lower blood glucose reductions when adherence is similar.

“The level of glucose control with the newer agents is really about the same,” Dr. Goldstein said at the annual meeting of the American Academy of Neurology, where he led a symposium called Controversies in Stroke Treatment and Prevention.

The newer agents, such as sodium glucose co-transport-2 inhibitors (SGLT-2i) and glucagon-like peptide-1 receptor agonists (GLP-1RA), have been associated with significant and clinically meaningful reductions in cardiovascular events. However, it is not clear that even these two medications perform similarly for stroke prevention specifically.

Of these two drug classes, Dr. Goldstein said the evidence most strongly supports GLP-1 receptor agonists. He cited one meta-analysis of eight randomized studies that calculated a risk reduction of about 15% whether calculated for fatal or nonfatal strokes. For each the protection was highly statistically significant (P = .0002 and P < .001, respectively).

In contrast, the effect of SGLT-2 inhibitors is weaker. In a study that distilled data from large cardiovascular trials with GLP-1RA, SGLT2i, dipeptidyl peptidase-4 inhibitors (DPP4i), and pioglitazone, a thiazolidinedione, only GLP-1RA drugs were associated with a highly significant (P < .001) reduction in risk of stroke. The risk reduction for pioglitazone reached significance (P = .025), but there was no signal of risk reduction for SGLT2i (P = .88) or for DPP4i (P = .5).
 

Weight Loss Is Potential Mechanism

Looking to explain the protection from stroke associated with some of the newer antidiabetic therapies, Gordon Kelley, MD, who leads the stroke program for AdventHealth Medical Group, Shawnee Mission, Kansas, suggested that weight loss is probably important.

“In our group, we work as a team to manage stroke risk in patients with diabetes, so I am not much involved in the choice of antidiabetic therapies, but it does seem that SGLT2 inhibitors and the GLP-1 receptor agonists share weight loss as an effect beyond glucose control,” he said.

Dr. Goldstein agreed that weight loss is a potential contributor to the cardiovascular benefits of GLP-1RA and SGLT2i, but he indicated that it might not help explain the reduction in stroke, an effect demonstrated repeatedly with GLP-1RA but inconsistently with SGLT2i.

The argument against weight loss as the critical mechanism of stroke prevention from newer antidiabetic drugs is strengthened by studies that suggest weight loss with SGLT2i appears to be even better than on GLP-1RA. In a study published in a pharmacy journal, weight loss was about twice as great among T2DM patients after 6 months of treatment managed with SGLT2i relative to those on a GLP-1RA (-2.8 vs 1.15 kg; P = .014).
 

Newer Antidiabetic Agents Guideline Recommended

In the 2019 American College of Cardiology/American Heart Association guidelines on the Primary Prevention of Cardiovascular Disease, stroke reduction is not discussed as an isolated risk, but these guidelines do recommend GLP-1RA or SGLT2i after metformin for glycemic control in T2DM patients with atherosclerotic cardiovascular disease (ASCVD) risk factors. This is based on evidence that drugs of both classes reduce risk for ASCVD events. The risk reduction has been particularly strong for heart failure.

For the risk of stroke specifically in patients with T2DM, Dr. Goldstein recommended calculating the ASCVD risk with the simple but well validated ACC risk calculator that is available online and is quickly completed when values for patient risk factors are readily available. For those with greater than 10% risk of an event in the next 10 years, he thinks GLP-1RA are a reasonable choice for prevention of stroke and other ASCVD events.

“GLP-1RA is mentioned in the guidelines, so this is supported,” said Dr. Goldstein, although adding that his choice of this class over SGLT2i is a personal if informed recommendation. He believes that the data favor GLP-1RA even if the exact mechanism of this protection is yet to be identified.

Dr. Goldstein and Dr. Kelley report no potential conflicts of interest.

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Mandibular Device Comparable to CPAP to Reduce BP in Hypertension, OSA

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Use of a mandibular advancement device (MAD) proved non-inferior to guideline-recommended continuous positive airway pressure (CPAP) to reduce blood pressure in patients with hypertension and obstructive sleep apnea (OSA), in a randomized trial.

The investigator-initiated CRESCENT trial showed that at 6 months, the MAD group had a reduction of 2.5 mm Hg in 24-hour mean arterial blood pressure vs no change in the CPAP group, for a nonsignificant between-group difference of 1.6 mm Hg. 

“These findings suggest that MAD could be considered an alternative to CPAP for optimizing blood pressure control in OSA patients with hypertension and high cardiovascular risk,” the researchers conclude. 

“Looking at the totality of evidence available in the literature, it is still reasonable to say that CPAP is the first-line treatment until we have more data on the MAD,” said Ronald Lee Chi-Hang, MD, professor of medicine at Yong Loo Lin School of Medicine, National University of Singapore, who presented the results.

“However, for patients who truly cannot tolerate or accept using a CPAP, we should be more open-minded in looking for an alternative therapy such as a MAD, which based on our study, numerically had a better blood pressure reduction in patients compared with a CPAP,” said Dr. Chi-Hang, who is also a senior consultant in the Department of Cardiology at Singapore’s National University Heart Centre. 

The results were presented April 6 at the American College of Cardiology Scientific Sessions 2024 and published online simultaneously in the Journal of the American College of Cardiology
 

Oral Appliance

OSA is increasingly recognized as “an underdiagnosed and modifiable cause of hypertension,” the researchers note in their report. “Patients with OSA develop recurrent collapse of the upper airway during sleep, resulting in hypoxemia, sympathetic hyperactivity, and BP surges.” 

Current guidelines recommend screening and treatment of OSA in patients with hypertension, and CPAP is considered first-line therapy, they note. 

“Despite being effective, unfortunately, many patients decline to use a CPAP or find it challenging to stick to the therapy,” Dr. Chi-Hang said, particularly those without daytime sleepiness. 

MADs are oral appliances that work by advancing the mandible about 5 to 10 mm during sleep, he said. They provide an alternative to OSA patients and have been shown to improve daytime sleepiness and quality of life, “and in general, is better accepted and tolerated than CPAP.” 

However, early studies are small, with short follow up, included patients with and without hypertension, and didn’t specify BP reduction as the primary outcome. 

The CRESCENT trial was an investigator-initiated, randomized, non-inferiority trial that aimed to compare the relative effectiveness of MAD vs CPAP in reducing 24-hour ambulatory blood pressure in patients with moderate-to-severe OSA, hypertension and high cardiovascular risk. The prespecified margin for non-inferiority was 1.5 mm Hg. 

A total of 321 participants were recruited at three public hospitals for polysomnography. All were older than age 40 years, had hypertension, and were at increased cardiovascular risk. Of these, 220 with moderate-to-severe OSA, defined as an apnea–hypopnea index (AHI) of ≥ 15 events/hour, were randomly assigned to either MAD or CPAP treatment. 

The primary outcome was the difference between the 24-hour mean arterial BP at baseline and 6 months. The median age was 61 years, most patients (85.5%) were male, and all were Chinese. All had essential hypertension and were on one or more antihypertensive medications. Hypertension was relatively well controlled at baseline.

At 6 months, 24-hour mean arterial BP decreased by 2.5 mm Hg in the MAD group (= .003) compared to no change from baseline in the CPAP group (P = .374). 

The between-group difference was -1.6 mm Hg (95% CI, -3.51 to 0.24, non-inferiority P < .001). 

There was a larger between-group reduction in all secondary ambulatory BP parameters in the MAD versus the CPAP group, with the most pronounced effects seen in the asleep BP parameters. 

Both the MAD and CPAP significantly improved daytime sleepiness, with no between-group differences (P =.384). There were no between-group differences in cardiovascular biomarkers. 

During the presentation, panel discussant Julie B. Damp, MD, associate professor of medicine at Vanderbilt Health in Nashville, Tennessee, called CRESCENT “a really interesting study, and I think it has a lot of information to add [regarding] what we know about this comparison in the literature, because this is a big study and it also followed these patients for longer than we’ve seen in some of the previous studies.”

Dr. Damp asked, however, about how these results might be extrapolated to other populations, since the vast majority of participants were male. 

Dr. Chi-Hang pointed out that most OSA studies include mostly male patients, but noted that particularly in Asian culture, female patients may be more conservative in seeking treatment for problems with snoring, poor quality of sleep, or extensive daytime sleepiness. “Therefore, lots of times, even in clinical practice, we see that over 80 or 90% of patients are male patients,” he said. 

Dr. Damp followed up by asking about the differential effectiveness of CPAP vs MAD. “Just in thinking about these two therapies, there is some evidence that the mandibular devices are potentially less effective on some of the sleep apnea-specific measures, so how much of this do you think is an issue of a better vs a not better treatment as opposed to an issue truly of compliance and what patients are able to tolerate?”

Dr. Chi-Hang agreed that in terms of reducing the AHI, CPAP is more effective than MAD. “In fact, in our data, the residual AHI was 10 for the MAD group and 2 for the CPAP group. Clearly, CPAP is more effective,” he said. “But the problem we are facing in this area is the value of AHI as an index is being questioned.” 

AHI considers only the number of events, without taking into account the duration or the depth of the apnea, he said. “AHI is simply not an ideal index to document the disease severity,” or the impact on cardiovascular outcomes. 
 

 

 

A Tailored Approach

In an editorial accompanying the JACC publication, Michele Emdin, MD, PhD, Francesco Gentile, MD, and Alberto Giannoni, MD, PhD, all from the Health Science Interdisciplinary Center, Scuola Superiore Sant’ Anna, and Fondazione Toscana Gabriele Monasterio, in Pisa, Italy, commend the researchers for designing and conducting “such a pragmatic and informative trial, which confirms and extends previous findings.” 

They also discuss the compliance vs effectiveness issue, pointing out that although CPAP appeared to be more effective in reducing apnea burden, there was higher adherence to MAD — with 57% using the device 6 or more hours per night, vs 23% for CPAP — which might have offset the greater reduction in apnea burden and resulted in the reduction in blood pressure seen in the trial. 

“Addressing poor adherence to OSA treatments seems therefore necessary, particularly in the case of less symptomatic patients, who often have a lower perception of the related risks,” they write. 

“Currently, a tailored approach seems reasonable, based on updated evidence, considering: a) the differential effects of CPAP or MAD on OSA, blood pressure; b) the treatment feasibility; c) the individual baseline demographic and clinical characteristics, including the presence of resistant hypertension; and d) compliance with the therapeutic tool and patient’s preferences,” the editorialists conclude. 

The study was funded by the Singapore Ministry of Health. The authors and editorialists report no relevant financial relationships.

A version of this article appeared on Medscape.com.

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Use of a mandibular advancement device (MAD) proved non-inferior to guideline-recommended continuous positive airway pressure (CPAP) to reduce blood pressure in patients with hypertension and obstructive sleep apnea (OSA), in a randomized trial.

The investigator-initiated CRESCENT trial showed that at 6 months, the MAD group had a reduction of 2.5 mm Hg in 24-hour mean arterial blood pressure vs no change in the CPAP group, for a nonsignificant between-group difference of 1.6 mm Hg. 

“These findings suggest that MAD could be considered an alternative to CPAP for optimizing blood pressure control in OSA patients with hypertension and high cardiovascular risk,” the researchers conclude. 

“Looking at the totality of evidence available in the literature, it is still reasonable to say that CPAP is the first-line treatment until we have more data on the MAD,” said Ronald Lee Chi-Hang, MD, professor of medicine at Yong Loo Lin School of Medicine, National University of Singapore, who presented the results.

“However, for patients who truly cannot tolerate or accept using a CPAP, we should be more open-minded in looking for an alternative therapy such as a MAD, which based on our study, numerically had a better blood pressure reduction in patients compared with a CPAP,” said Dr. Chi-Hang, who is also a senior consultant in the Department of Cardiology at Singapore’s National University Heart Centre. 

The results were presented April 6 at the American College of Cardiology Scientific Sessions 2024 and published online simultaneously in the Journal of the American College of Cardiology
 

Oral Appliance

OSA is increasingly recognized as “an underdiagnosed and modifiable cause of hypertension,” the researchers note in their report. “Patients with OSA develop recurrent collapse of the upper airway during sleep, resulting in hypoxemia, sympathetic hyperactivity, and BP surges.” 

Current guidelines recommend screening and treatment of OSA in patients with hypertension, and CPAP is considered first-line therapy, they note. 

“Despite being effective, unfortunately, many patients decline to use a CPAP or find it challenging to stick to the therapy,” Dr. Chi-Hang said, particularly those without daytime sleepiness. 

MADs are oral appliances that work by advancing the mandible about 5 to 10 mm during sleep, he said. They provide an alternative to OSA patients and have been shown to improve daytime sleepiness and quality of life, “and in general, is better accepted and tolerated than CPAP.” 

However, early studies are small, with short follow up, included patients with and without hypertension, and didn’t specify BP reduction as the primary outcome. 

The CRESCENT trial was an investigator-initiated, randomized, non-inferiority trial that aimed to compare the relative effectiveness of MAD vs CPAP in reducing 24-hour ambulatory blood pressure in patients with moderate-to-severe OSA, hypertension and high cardiovascular risk. The prespecified margin for non-inferiority was 1.5 mm Hg. 

A total of 321 participants were recruited at three public hospitals for polysomnography. All were older than age 40 years, had hypertension, and were at increased cardiovascular risk. Of these, 220 with moderate-to-severe OSA, defined as an apnea–hypopnea index (AHI) of ≥ 15 events/hour, were randomly assigned to either MAD or CPAP treatment. 

The primary outcome was the difference between the 24-hour mean arterial BP at baseline and 6 months. The median age was 61 years, most patients (85.5%) were male, and all were Chinese. All had essential hypertension and were on one or more antihypertensive medications. Hypertension was relatively well controlled at baseline.

At 6 months, 24-hour mean arterial BP decreased by 2.5 mm Hg in the MAD group (= .003) compared to no change from baseline in the CPAP group (P = .374). 

The between-group difference was -1.6 mm Hg (95% CI, -3.51 to 0.24, non-inferiority P < .001). 

There was a larger between-group reduction in all secondary ambulatory BP parameters in the MAD versus the CPAP group, with the most pronounced effects seen in the asleep BP parameters. 

Both the MAD and CPAP significantly improved daytime sleepiness, with no between-group differences (P =.384). There were no between-group differences in cardiovascular biomarkers. 

During the presentation, panel discussant Julie B. Damp, MD, associate professor of medicine at Vanderbilt Health in Nashville, Tennessee, called CRESCENT “a really interesting study, and I think it has a lot of information to add [regarding] what we know about this comparison in the literature, because this is a big study and it also followed these patients for longer than we’ve seen in some of the previous studies.”

Dr. Damp asked, however, about how these results might be extrapolated to other populations, since the vast majority of participants were male. 

Dr. Chi-Hang pointed out that most OSA studies include mostly male patients, but noted that particularly in Asian culture, female patients may be more conservative in seeking treatment for problems with snoring, poor quality of sleep, or extensive daytime sleepiness. “Therefore, lots of times, even in clinical practice, we see that over 80 or 90% of patients are male patients,” he said. 

Dr. Damp followed up by asking about the differential effectiveness of CPAP vs MAD. “Just in thinking about these two therapies, there is some evidence that the mandibular devices are potentially less effective on some of the sleep apnea-specific measures, so how much of this do you think is an issue of a better vs a not better treatment as opposed to an issue truly of compliance and what patients are able to tolerate?”

Dr. Chi-Hang agreed that in terms of reducing the AHI, CPAP is more effective than MAD. “In fact, in our data, the residual AHI was 10 for the MAD group and 2 for the CPAP group. Clearly, CPAP is more effective,” he said. “But the problem we are facing in this area is the value of AHI as an index is being questioned.” 

AHI considers only the number of events, without taking into account the duration or the depth of the apnea, he said. “AHI is simply not an ideal index to document the disease severity,” or the impact on cardiovascular outcomes. 
 

 

 

A Tailored Approach

In an editorial accompanying the JACC publication, Michele Emdin, MD, PhD, Francesco Gentile, MD, and Alberto Giannoni, MD, PhD, all from the Health Science Interdisciplinary Center, Scuola Superiore Sant’ Anna, and Fondazione Toscana Gabriele Monasterio, in Pisa, Italy, commend the researchers for designing and conducting “such a pragmatic and informative trial, which confirms and extends previous findings.” 

They also discuss the compliance vs effectiveness issue, pointing out that although CPAP appeared to be more effective in reducing apnea burden, there was higher adherence to MAD — with 57% using the device 6 or more hours per night, vs 23% for CPAP — which might have offset the greater reduction in apnea burden and resulted in the reduction in blood pressure seen in the trial. 

“Addressing poor adherence to OSA treatments seems therefore necessary, particularly in the case of less symptomatic patients, who often have a lower perception of the related risks,” they write. 

“Currently, a tailored approach seems reasonable, based on updated evidence, considering: a) the differential effects of CPAP or MAD on OSA, blood pressure; b) the treatment feasibility; c) the individual baseline demographic and clinical characteristics, including the presence of resistant hypertension; and d) compliance with the therapeutic tool and patient’s preferences,” the editorialists conclude. 

The study was funded by the Singapore Ministry of Health. The authors and editorialists report no relevant financial relationships.

A version of this article appeared on Medscape.com.

Use of a mandibular advancement device (MAD) proved non-inferior to guideline-recommended continuous positive airway pressure (CPAP) to reduce blood pressure in patients with hypertension and obstructive sleep apnea (OSA), in a randomized trial.

The investigator-initiated CRESCENT trial showed that at 6 months, the MAD group had a reduction of 2.5 mm Hg in 24-hour mean arterial blood pressure vs no change in the CPAP group, for a nonsignificant between-group difference of 1.6 mm Hg. 

“These findings suggest that MAD could be considered an alternative to CPAP for optimizing blood pressure control in OSA patients with hypertension and high cardiovascular risk,” the researchers conclude. 

“Looking at the totality of evidence available in the literature, it is still reasonable to say that CPAP is the first-line treatment until we have more data on the MAD,” said Ronald Lee Chi-Hang, MD, professor of medicine at Yong Loo Lin School of Medicine, National University of Singapore, who presented the results.

“However, for patients who truly cannot tolerate or accept using a CPAP, we should be more open-minded in looking for an alternative therapy such as a MAD, which based on our study, numerically had a better blood pressure reduction in patients compared with a CPAP,” said Dr. Chi-Hang, who is also a senior consultant in the Department of Cardiology at Singapore’s National University Heart Centre. 

The results were presented April 6 at the American College of Cardiology Scientific Sessions 2024 and published online simultaneously in the Journal of the American College of Cardiology
 

Oral Appliance

OSA is increasingly recognized as “an underdiagnosed and modifiable cause of hypertension,” the researchers note in their report. “Patients with OSA develop recurrent collapse of the upper airway during sleep, resulting in hypoxemia, sympathetic hyperactivity, and BP surges.” 

Current guidelines recommend screening and treatment of OSA in patients with hypertension, and CPAP is considered first-line therapy, they note. 

“Despite being effective, unfortunately, many patients decline to use a CPAP or find it challenging to stick to the therapy,” Dr. Chi-Hang said, particularly those without daytime sleepiness. 

MADs are oral appliances that work by advancing the mandible about 5 to 10 mm during sleep, he said. They provide an alternative to OSA patients and have been shown to improve daytime sleepiness and quality of life, “and in general, is better accepted and tolerated than CPAP.” 

However, early studies are small, with short follow up, included patients with and without hypertension, and didn’t specify BP reduction as the primary outcome. 

The CRESCENT trial was an investigator-initiated, randomized, non-inferiority trial that aimed to compare the relative effectiveness of MAD vs CPAP in reducing 24-hour ambulatory blood pressure in patients with moderate-to-severe OSA, hypertension and high cardiovascular risk. The prespecified margin for non-inferiority was 1.5 mm Hg. 

A total of 321 participants were recruited at three public hospitals for polysomnography. All were older than age 40 years, had hypertension, and were at increased cardiovascular risk. Of these, 220 with moderate-to-severe OSA, defined as an apnea–hypopnea index (AHI) of ≥ 15 events/hour, were randomly assigned to either MAD or CPAP treatment. 

The primary outcome was the difference between the 24-hour mean arterial BP at baseline and 6 months. The median age was 61 years, most patients (85.5%) were male, and all were Chinese. All had essential hypertension and were on one or more antihypertensive medications. Hypertension was relatively well controlled at baseline.

At 6 months, 24-hour mean arterial BP decreased by 2.5 mm Hg in the MAD group (= .003) compared to no change from baseline in the CPAP group (P = .374). 

The between-group difference was -1.6 mm Hg (95% CI, -3.51 to 0.24, non-inferiority P < .001). 

There was a larger between-group reduction in all secondary ambulatory BP parameters in the MAD versus the CPAP group, with the most pronounced effects seen in the asleep BP parameters. 

Both the MAD and CPAP significantly improved daytime sleepiness, with no between-group differences (P =.384). There were no between-group differences in cardiovascular biomarkers. 

During the presentation, panel discussant Julie B. Damp, MD, associate professor of medicine at Vanderbilt Health in Nashville, Tennessee, called CRESCENT “a really interesting study, and I think it has a lot of information to add [regarding] what we know about this comparison in the literature, because this is a big study and it also followed these patients for longer than we’ve seen in some of the previous studies.”

Dr. Damp asked, however, about how these results might be extrapolated to other populations, since the vast majority of participants were male. 

Dr. Chi-Hang pointed out that most OSA studies include mostly male patients, but noted that particularly in Asian culture, female patients may be more conservative in seeking treatment for problems with snoring, poor quality of sleep, or extensive daytime sleepiness. “Therefore, lots of times, even in clinical practice, we see that over 80 or 90% of patients are male patients,” he said. 

Dr. Damp followed up by asking about the differential effectiveness of CPAP vs MAD. “Just in thinking about these two therapies, there is some evidence that the mandibular devices are potentially less effective on some of the sleep apnea-specific measures, so how much of this do you think is an issue of a better vs a not better treatment as opposed to an issue truly of compliance and what patients are able to tolerate?”

Dr. Chi-Hang agreed that in terms of reducing the AHI, CPAP is more effective than MAD. “In fact, in our data, the residual AHI was 10 for the MAD group and 2 for the CPAP group. Clearly, CPAP is more effective,” he said. “But the problem we are facing in this area is the value of AHI as an index is being questioned.” 

AHI considers only the number of events, without taking into account the duration or the depth of the apnea, he said. “AHI is simply not an ideal index to document the disease severity,” or the impact on cardiovascular outcomes. 
 

 

 

A Tailored Approach

In an editorial accompanying the JACC publication, Michele Emdin, MD, PhD, Francesco Gentile, MD, and Alberto Giannoni, MD, PhD, all from the Health Science Interdisciplinary Center, Scuola Superiore Sant’ Anna, and Fondazione Toscana Gabriele Monasterio, in Pisa, Italy, commend the researchers for designing and conducting “such a pragmatic and informative trial, which confirms and extends previous findings.” 

They also discuss the compliance vs effectiveness issue, pointing out that although CPAP appeared to be more effective in reducing apnea burden, there was higher adherence to MAD — with 57% using the device 6 or more hours per night, vs 23% for CPAP — which might have offset the greater reduction in apnea burden and resulted in the reduction in blood pressure seen in the trial. 

“Addressing poor adherence to OSA treatments seems therefore necessary, particularly in the case of less symptomatic patients, who often have a lower perception of the related risks,” they write. 

“Currently, a tailored approach seems reasonable, based on updated evidence, considering: a) the differential effects of CPAP or MAD on OSA, blood pressure; b) the treatment feasibility; c) the individual baseline demographic and clinical characteristics, including the presence of resistant hypertension; and d) compliance with the therapeutic tool and patient’s preferences,” the editorialists conclude. 

The study was funded by the Singapore Ministry of Health. The authors and editorialists report no relevant financial relationships.

A version of this article appeared on Medscape.com.

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Salt Substitutes May Cut All-Cause And Cardiovascular Mortality

Article Type
Changed
Fri, 04/19/2024 - 11:17

Large-scale salt substitution holds promise for reducing mortality with no elevated risk of serious harms, especially for older people at increased cardiovascular disease (CVD) risk, a systematic review and meta-analysis by Australian researchers suggested.

The study, published in Annals of Internal Medicine, adds more evidence that broad adoption of potassium-rich salt substitutes for food preparation could have a significant effect on population health.

Although the supporting evidence was of low certainty, the analysis of 16 international randomized controlled trials of various interventions with 35,321 participants found salt substitution to be associated with an absolute reduction of 5 in 1000 in all-cause mortality (confidence interval, –3 to –7) and 3 in 1000 in CVD mortality (CI, –1 to –5).

Led by Hannah Greenwood, BPsychSc, a cardiovascular researcher at the Institute for Evidence-Based Healthcare at Bond University in Gold Coast, Queensland, the investigators also found very low certainty evidence of an absolute reduction of 8 in 1000 in major adverse cardiovascular events (CI, 0 to –15), with a 1 in 1000 decrease in more serious adverse events (CI, 4 to –2) in the same population.

Seven of the 16 studies were conducted in China and Taiwan and seven were conducted in populations of older age (mean age 62 years) and/or at higher cardiovascular risk.

With most of the data deriving from populations of older age at higher-than-average CV risk and/or eating an Asian diet, the findings’ generalizability to populations following a Western diet and/or at average CVD risk is limited, the researchers acknowledged.

“We are less certain about the effects in Western, younger, and healthy population groups,” corresponding author Loai Albarqouni, MD, MSc, PhD, assistant professor at the Institute for Evidence-Based Healthcare, said in an interview. “While we saw small, clinically meaningful reductions in cardiovascular deaths and events, effectiveness should be better established before salt substitutes are recommended more broadly, though they are promising.”

In addition, he said, since the longest follow-up of substitute use was 10 years, “we can’t speak to benefits or harms beyond this time frame.”

Bond University
Dr Loai Albarqouni


Still, recommending salt substitutes may be an effective way for physicians to help patients reduce CVD risk, especially those hesitant to start medication, he said. “But physicians should take into account individual circumstances and other factors like kidney disease before recommending salt substitutes. Other non-drug methods of reducing cardiovascular risk, such as diet or exercise, may also be considered.”

Dr. Albarqouni stressed that sodium intake is not the only driver of CVD and reducing intake is just one piece of the puzzle. He cautioned that substitutes themselves can contain high levels of sodium, “so if people are using them in large volumes, they may still present similar risks to the sodium in regular salt.”

While the substitutes appear safe as evidenced by low incidence of hyperkalemia or renal dysfunction, the evidence is scarce, heterogeneous, and weak, the authors stressed.

“They can pose a health risk among people who have kidney disease, diabetes, and heart failure or who take certain medications, including ACE inhibitors and potassium-sparing diuretics,” said Emma Laing, PhD, RDN, director of dietetics at the University of Georgia in Athens. And while their salty flavor makes these a reasonable alternate to sodium chloride, “the downsides include a higher cost and bitter or metallic taste in high amounts. These salt substitutes tend to be better accepted by patients if they contain less than 30% potassium chloride.”

University of Georgia
Dr. Emma Laing


She noted that flavorful salt-free spices, herbs, lemon and lime juices, and vinegars can be effective in lowering dietary sodium when used in lieu of cooking salt.

In similar findings, a recent Chinese study of elderly normotensive people in residential care facilities observed a decrease in the incidence of hypertension with salt substitution.

Approximately one-third of otherwise health individuals are salt-sensitive, rising to more than 50% those with hypertension, and excessive salt intake is estimated to be responsible for nearly 5 million deaths per year globally.

How much impact could household food preparation with salt substitutes really have in North America where sodium consumption is largely driven by processed and takeout food? “While someone may make the switch to a salt substitute for home cooking, their sodium intake might still be very high if a lot of processed or takeaway foods are eaten,” Dr. Albarqouni said. “To see large population impacts, we will likely need policy and institutional-level change as to how sodium is used in food processing, alongside individuals’ switching from regular salt to salt substitutes.”

In agreement, an accompanying editorial  by researchers from the universities of Sydney, New South Wales, and California, San Diego, noted the failure of governments and industry to address the World Health Organization’s call for a 30% reduction in global sodium consumption by 2025. With hypertension a major global health burden, the editorialists, led by J. Jaime Miranda, MD, MSc, PhD, of the Sydney School of Public Health at the University of Sydney, believe salt substitutes could be an accessible path toward that goal for food production companies.

University of Sydney
Dr. J. Jaime Miranda


“Although the benefits of reducing salt intake have been known for decades, little progress has been made in the quest to lower salt intake on the industry and commercial fronts with existing regulatory tools,” they wrote. “Consequently, we must turn our attention to effective evidence-based alternatives, such as the use of potassium-enriched salts.”

Given the high rates of nonadherence to antihypertensive medication, nonpharmacologic measures to improve blood pressure control are required, they added. “Expanding the routine use of potassium-enriched salts across households and the food industry would benefit not only persons with existing hypertension but all members of the household and communities. An entire shift of the population’s blood pressure curve is possible.”

The study authors called for research to determine the cost-effectiveness of salt substitution in older Asian populations and its efficacy in groups at average cardiovascular risk or following a Western diet.

This research was supported by the National Health and Medical Research Council of Australia and an Australian Government Research Training Program Scholarship. Coauthor Dr. Lauren Ball disclosed support from the National Health and Medical Research Council of Australia. Ms. Hannah Greenwood received support from the Australian government and Bond University. Dr. Miranda disclosed numerous consulting, advisory, and research-funding relationships with government, academic, philanthropic, and nonprofit organizations. Editorial commentator Dr. Kathy Trieu reported research support from multiple government and non-profit research-funding organizations. Dr. Cheryl Anderson disclosed ties to Weight Watchers and the McCormick Science Institute, as well support from numerous government, academic, and nonprofit research-funding agencies.

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Large-scale salt substitution holds promise for reducing mortality with no elevated risk of serious harms, especially for older people at increased cardiovascular disease (CVD) risk, a systematic review and meta-analysis by Australian researchers suggested.

The study, published in Annals of Internal Medicine, adds more evidence that broad adoption of potassium-rich salt substitutes for food preparation could have a significant effect on population health.

Although the supporting evidence was of low certainty, the analysis of 16 international randomized controlled trials of various interventions with 35,321 participants found salt substitution to be associated with an absolute reduction of 5 in 1000 in all-cause mortality (confidence interval, –3 to –7) and 3 in 1000 in CVD mortality (CI, –1 to –5).

Led by Hannah Greenwood, BPsychSc, a cardiovascular researcher at the Institute for Evidence-Based Healthcare at Bond University in Gold Coast, Queensland, the investigators also found very low certainty evidence of an absolute reduction of 8 in 1000 in major adverse cardiovascular events (CI, 0 to –15), with a 1 in 1000 decrease in more serious adverse events (CI, 4 to –2) in the same population.

Seven of the 16 studies were conducted in China and Taiwan and seven were conducted in populations of older age (mean age 62 years) and/or at higher cardiovascular risk.

With most of the data deriving from populations of older age at higher-than-average CV risk and/or eating an Asian diet, the findings’ generalizability to populations following a Western diet and/or at average CVD risk is limited, the researchers acknowledged.

“We are less certain about the effects in Western, younger, and healthy population groups,” corresponding author Loai Albarqouni, MD, MSc, PhD, assistant professor at the Institute for Evidence-Based Healthcare, said in an interview. “While we saw small, clinically meaningful reductions in cardiovascular deaths and events, effectiveness should be better established before salt substitutes are recommended more broadly, though they are promising.”

In addition, he said, since the longest follow-up of substitute use was 10 years, “we can’t speak to benefits or harms beyond this time frame.”

Bond University
Dr Loai Albarqouni


Still, recommending salt substitutes may be an effective way for physicians to help patients reduce CVD risk, especially those hesitant to start medication, he said. “But physicians should take into account individual circumstances and other factors like kidney disease before recommending salt substitutes. Other non-drug methods of reducing cardiovascular risk, such as diet or exercise, may also be considered.”

Dr. Albarqouni stressed that sodium intake is not the only driver of CVD and reducing intake is just one piece of the puzzle. He cautioned that substitutes themselves can contain high levels of sodium, “so if people are using them in large volumes, they may still present similar risks to the sodium in regular salt.”

While the substitutes appear safe as evidenced by low incidence of hyperkalemia or renal dysfunction, the evidence is scarce, heterogeneous, and weak, the authors stressed.

“They can pose a health risk among people who have kidney disease, diabetes, and heart failure or who take certain medications, including ACE inhibitors and potassium-sparing diuretics,” said Emma Laing, PhD, RDN, director of dietetics at the University of Georgia in Athens. And while their salty flavor makes these a reasonable alternate to sodium chloride, “the downsides include a higher cost and bitter or metallic taste in high amounts. These salt substitutes tend to be better accepted by patients if they contain less than 30% potassium chloride.”

University of Georgia
Dr. Emma Laing


She noted that flavorful salt-free spices, herbs, lemon and lime juices, and vinegars can be effective in lowering dietary sodium when used in lieu of cooking salt.

In similar findings, a recent Chinese study of elderly normotensive people in residential care facilities observed a decrease in the incidence of hypertension with salt substitution.

Approximately one-third of otherwise health individuals are salt-sensitive, rising to more than 50% those with hypertension, and excessive salt intake is estimated to be responsible for nearly 5 million deaths per year globally.

How much impact could household food preparation with salt substitutes really have in North America where sodium consumption is largely driven by processed and takeout food? “While someone may make the switch to a salt substitute for home cooking, their sodium intake might still be very high if a lot of processed or takeaway foods are eaten,” Dr. Albarqouni said. “To see large population impacts, we will likely need policy and institutional-level change as to how sodium is used in food processing, alongside individuals’ switching from regular salt to salt substitutes.”

In agreement, an accompanying editorial  by researchers from the universities of Sydney, New South Wales, and California, San Diego, noted the failure of governments and industry to address the World Health Organization’s call for a 30% reduction in global sodium consumption by 2025. With hypertension a major global health burden, the editorialists, led by J. Jaime Miranda, MD, MSc, PhD, of the Sydney School of Public Health at the University of Sydney, believe salt substitutes could be an accessible path toward that goal for food production companies.

University of Sydney
Dr. J. Jaime Miranda


“Although the benefits of reducing salt intake have been known for decades, little progress has been made in the quest to lower salt intake on the industry and commercial fronts with existing regulatory tools,” they wrote. “Consequently, we must turn our attention to effective evidence-based alternatives, such as the use of potassium-enriched salts.”

Given the high rates of nonadherence to antihypertensive medication, nonpharmacologic measures to improve blood pressure control are required, they added. “Expanding the routine use of potassium-enriched salts across households and the food industry would benefit not only persons with existing hypertension but all members of the household and communities. An entire shift of the population’s blood pressure curve is possible.”

The study authors called for research to determine the cost-effectiveness of salt substitution in older Asian populations and its efficacy in groups at average cardiovascular risk or following a Western diet.

This research was supported by the National Health and Medical Research Council of Australia and an Australian Government Research Training Program Scholarship. Coauthor Dr. Lauren Ball disclosed support from the National Health and Medical Research Council of Australia. Ms. Hannah Greenwood received support from the Australian government and Bond University. Dr. Miranda disclosed numerous consulting, advisory, and research-funding relationships with government, academic, philanthropic, and nonprofit organizations. Editorial commentator Dr. Kathy Trieu reported research support from multiple government and non-profit research-funding organizations. Dr. Cheryl Anderson disclosed ties to Weight Watchers and the McCormick Science Institute, as well support from numerous government, academic, and nonprofit research-funding agencies.

Large-scale salt substitution holds promise for reducing mortality with no elevated risk of serious harms, especially for older people at increased cardiovascular disease (CVD) risk, a systematic review and meta-analysis by Australian researchers suggested.

The study, published in Annals of Internal Medicine, adds more evidence that broad adoption of potassium-rich salt substitutes for food preparation could have a significant effect on population health.

Although the supporting evidence was of low certainty, the analysis of 16 international randomized controlled trials of various interventions with 35,321 participants found salt substitution to be associated with an absolute reduction of 5 in 1000 in all-cause mortality (confidence interval, –3 to –7) and 3 in 1000 in CVD mortality (CI, –1 to –5).

Led by Hannah Greenwood, BPsychSc, a cardiovascular researcher at the Institute for Evidence-Based Healthcare at Bond University in Gold Coast, Queensland, the investigators also found very low certainty evidence of an absolute reduction of 8 in 1000 in major adverse cardiovascular events (CI, 0 to –15), with a 1 in 1000 decrease in more serious adverse events (CI, 4 to –2) in the same population.

Seven of the 16 studies were conducted in China and Taiwan and seven were conducted in populations of older age (mean age 62 years) and/or at higher cardiovascular risk.

With most of the data deriving from populations of older age at higher-than-average CV risk and/or eating an Asian diet, the findings’ generalizability to populations following a Western diet and/or at average CVD risk is limited, the researchers acknowledged.

“We are less certain about the effects in Western, younger, and healthy population groups,” corresponding author Loai Albarqouni, MD, MSc, PhD, assistant professor at the Institute for Evidence-Based Healthcare, said in an interview. “While we saw small, clinically meaningful reductions in cardiovascular deaths and events, effectiveness should be better established before salt substitutes are recommended more broadly, though they are promising.”

In addition, he said, since the longest follow-up of substitute use was 10 years, “we can’t speak to benefits or harms beyond this time frame.”

Bond University
Dr Loai Albarqouni


Still, recommending salt substitutes may be an effective way for physicians to help patients reduce CVD risk, especially those hesitant to start medication, he said. “But physicians should take into account individual circumstances and other factors like kidney disease before recommending salt substitutes. Other non-drug methods of reducing cardiovascular risk, such as diet or exercise, may also be considered.”

Dr. Albarqouni stressed that sodium intake is not the only driver of CVD and reducing intake is just one piece of the puzzle. He cautioned that substitutes themselves can contain high levels of sodium, “so if people are using them in large volumes, they may still present similar risks to the sodium in regular salt.”

While the substitutes appear safe as evidenced by low incidence of hyperkalemia or renal dysfunction, the evidence is scarce, heterogeneous, and weak, the authors stressed.

“They can pose a health risk among people who have kidney disease, diabetes, and heart failure or who take certain medications, including ACE inhibitors and potassium-sparing diuretics,” said Emma Laing, PhD, RDN, director of dietetics at the University of Georgia in Athens. And while their salty flavor makes these a reasonable alternate to sodium chloride, “the downsides include a higher cost and bitter or metallic taste in high amounts. These salt substitutes tend to be better accepted by patients if they contain less than 30% potassium chloride.”

University of Georgia
Dr. Emma Laing


She noted that flavorful salt-free spices, herbs, lemon and lime juices, and vinegars can be effective in lowering dietary sodium when used in lieu of cooking salt.

In similar findings, a recent Chinese study of elderly normotensive people in residential care facilities observed a decrease in the incidence of hypertension with salt substitution.

Approximately one-third of otherwise health individuals are salt-sensitive, rising to more than 50% those with hypertension, and excessive salt intake is estimated to be responsible for nearly 5 million deaths per year globally.

How much impact could household food preparation with salt substitutes really have in North America where sodium consumption is largely driven by processed and takeout food? “While someone may make the switch to a salt substitute for home cooking, their sodium intake might still be very high if a lot of processed or takeaway foods are eaten,” Dr. Albarqouni said. “To see large population impacts, we will likely need policy and institutional-level change as to how sodium is used in food processing, alongside individuals’ switching from regular salt to salt substitutes.”

In agreement, an accompanying editorial  by researchers from the universities of Sydney, New South Wales, and California, San Diego, noted the failure of governments and industry to address the World Health Organization’s call for a 30% reduction in global sodium consumption by 2025. With hypertension a major global health burden, the editorialists, led by J. Jaime Miranda, MD, MSc, PhD, of the Sydney School of Public Health at the University of Sydney, believe salt substitutes could be an accessible path toward that goal for food production companies.

University of Sydney
Dr. J. Jaime Miranda


“Although the benefits of reducing salt intake have been known for decades, little progress has been made in the quest to lower salt intake on the industry and commercial fronts with existing regulatory tools,” they wrote. “Consequently, we must turn our attention to effective evidence-based alternatives, such as the use of potassium-enriched salts.”

Given the high rates of nonadherence to antihypertensive medication, nonpharmacologic measures to improve blood pressure control are required, they added. “Expanding the routine use of potassium-enriched salts across households and the food industry would benefit not only persons with existing hypertension but all members of the household and communities. An entire shift of the population’s blood pressure curve is possible.”

The study authors called for research to determine the cost-effectiveness of salt substitution in older Asian populations and its efficacy in groups at average cardiovascular risk or following a Western diet.

This research was supported by the National Health and Medical Research Council of Australia and an Australian Government Research Training Program Scholarship. Coauthor Dr. Lauren Ball disclosed support from the National Health and Medical Research Council of Australia. Ms. Hannah Greenwood received support from the Australian government and Bond University. Dr. Miranda disclosed numerous consulting, advisory, and research-funding relationships with government, academic, philanthropic, and nonprofit organizations. Editorial commentator Dr. Kathy Trieu reported research support from multiple government and non-profit research-funding organizations. Dr. Cheryl Anderson disclosed ties to Weight Watchers and the McCormick Science Institute, as well support from numerous government, academic, and nonprofit research-funding agencies.

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Are E-Cigarettes Bad for the Heart?

Article Type
Changed
Tue, 04/16/2024 - 11:52

E-cigarettes entered the market as consumer products without comprehensive toxicological testing,based on the assessment that they were 95% less harmful than traditional cigarettes. Further, consumer dvertising suggests that e-cigarettes are a good alternative to conventional combustible cigarettes and can serve as a gateway to quitting smoking.

However, hen considering damage to the endothelium and toxicity, e-cigarettes have a negative impact like that of conventional cigarettes. Moreover, switching to e-cigarettes often leads to dual use, said Stefan Andreas, MD, director of the Lungenfachklinik in Immenhausen, Germany, at the Congress of the German Respiratory Society and Intensive Care Medicine. 
 

Subclinical Atherosclerosis

Because e-cigarettes have emerged relatively recently, long-term studies on their cardiac consequences are not yet available. Dr. Andreas explained that the impact on endothelial function is relevant for risk assessment. Endothelial function is a biomarker for early, subclinical atherosclerosis. “If endothelial function is impaired, the risk for heart attack and stroke is significantly increased 5-10 years later,” said Dr. Andreas.

The results of a crossover study showed reduced vascular elasticity after consuming both tobacco cigarettes and e-cigarettes. The study included 20 smokers, and endothelial function was measured using flow-mediated vasodilation.

Significant effects on the vessels were also found in a study of 31 participants who had never smoked. The study participants inhaled a nicotine-free aerosol from e-cigarettes. Before and after, parameters of endothelial function were examined using a 3.0-T MRI. After aerosol inhalation, the resistance index was 2.3% higher (P < .05), and flow-mediated vascular dilation was reduced by 34% (P < .001).

A recent review involving 372 participants from China showed that e-cigarettes lead to an increase in pulse wave velocity, with a difference of 3.08 (P < .001). “Pulse wave velocity is also a marker of endothelial function: The stiffer the vessels, the higher the pulse wave velocity,” said Dr. Andreas. The authors of the review concluded that “e-cigarettes should not be promoted as a healthier alternative to tobacco smoking.”
 

No Harmless Alternative

A recent review compared the effects of tobacco smoking and e-cigarettes. The results showed that vaping e-cigarettes causes oxidative stress, inflammation, endothelial dysfunction, and related cardiovascular consequences. The authors attributed the findings to overlapping toxic compounds in vapor and tobacco smoke and similar pathomechanical features of vaping and smoking. Although the toxic mixture in smoke is more complex, both e-cigarettes and tobacco cigarettes “impaired endothelial function to a similar extent,” they wrote. The authors attributed this finding to oxidative stress as the central mechanism.

“There is increasing evidence that e-cigarettes are not a harmless alternative to tobacco cigarettes,” wrote Thomas Münzel, MD, professor of cardiology at the University of Mainz and his team in their 2020 review, which examined studies in humans and animals. They provided an overview of the effects of tobacco/hookah smoking and e-cigarette vaping on endothelial function. They also pointed to emerging adverse effects on the proteome, transcriptome, epigenome, microbiome, and circadian clock.

Finally, a toxicological review of e-cigarettes also found alarmingly high levels of carcinogens and toxins that could have long-term effects on other organs, including the development of neurological symptoms, lung cancer, cardiovascular diseases, and cavities.

Dr. Andreas observed that even small amounts, such as those obtained through secondhand smoking, can be harmful. In 2007, Dr. Andreas and his colleagues showed that even low exposure to tobacco smoke can lead to a significant increase in cardiovascular events.
 

 

 

Conflicts of Interest 

Dr. Andreas recommended closely examining the studies that suggest that e-cigarettes are less risky. “It is noticeable that there is a significant difference depending on whether publications were supported by the tobacco industry or not,” he emphasized.

Danish scientists found that a conflict of interest (COI) has a strong influence on study results. “In studies without a COI, e-cigarettes are found to cause damage 95% of the time. In contrast, when there is a strong conflict of interest, the result is often ‘no harm,’” said Dr. Andreas.

This effect is quite relevant for the discussion of e-cigarettes. “If scientists make a critical statement in a position paper, there will always be someone who says, ‘No, it’s different, there are these and those publications.’ The true nature of interest-driven publications on e-cigarettes is not always easy to discern,” said Dr. Andreas.
 

No Gateway to Quitting 

E-cigarettes are used in clinical studies for tobacco cessation. The results of a randomized study showed that significantly more smokers who were switched to e-cigarettes quit smoking, compared with controls. But there was no significant difference in complete smoking cessation between groups. Moreover, 45% of smokers who switched to e-cigarettes became dual users, compared with 11% of controls.

“Translating these results means that for one person who quits smoking by using e-cigarettes, they gain five people who use both traditional cigarettes and e-cigarettes,” explained Dr. Andreas.

In their recent review, Münzel and colleagues pointed out that the assessment that e-cigarettes could help with quitting might be wrong. Rather, it seems that “e-cigarettes have the opposite effect.” They also note that the age of initiation for e-cigarettes is generally lower than for tobacco cigarettes: Consumption often starts at age 13 or 14 years. And the consumption of e-cigarettes among children and adolescents increased by 7% from 2016 to 2023.

A meta-analysis published at the end of February also shows that e-cigarettes are about as dangerous as tobacco cigarettes. They are more dangerous than not smoking, and dual use is more dangerous than tobacco cigarettes alone. “There is a need to reassess the assumption that e-cigarette use provides substantial harm reduction across all cigarette-caused diseases, particularly accounting for dual use,” wrote the authors.

“One must always consider that e-cigarettes have only been available for a relatively short time. We can only see the cumulative toxicity in 10, 20 years when we have patients who have smoked e-cigarettes only for 20 years,” said Dr. Andreas. Ultimately, however, e-cigarettes promote dual use and, consequently, additive toxicity.
 

Nicotine Replacement Therapies 

Quitting smoking reduces the risk of cardiovascular events and premature death by 40%, even among patients with cardiovascular disease, according to a Cochrane meta-analysis. Smoking cessation reduces the risk for cardiovascular death by 39%, the risk for major adverse cardiovascular events by 43%, the risk for heart attack by 36%, the risk for stroke by 30%, and overall mortality by 40%.

Quitting smoking is the most effective measure for risk reduction, as a meta-analysis of 20 studies in patients with coronary heart disease found. Smoking cessation was associated with a 36% risk reduction compared with 29% risk reduction for statin therapy, 23% risk reduction with beta-blockers and ACE inhibitors and 15% risk reduction with aspirin.

Dr. Andreas emphasized that nicotine replacement therapies are well-researched and safe even in cardiovascular disease, as shown by a US study that included patients who had sustained a heart attack. A group of the participants was treated with nicotine patches for 10 weeks, while the other group received a placebo. After 14 weeks, 21% of the nicotine patch group achieved abstinence vs 9% of the placebo group (P = .001). Transdermal nicotine application does not lead to a significant increase in cardiovascular events in high-risk patients.

The German “Nonsmoker Heroes” app has proven to be an effective means of behavioral therapeutic coaching. A recent study of it included 17 study centers with 661 participants. About 21% of the subjects had chronic obstructive pulmonary disease, 19% had asthma. Smoking onset occurred at age 16 years. The subjects were highly dependent: > 72% had at least moderate dependence, > 58% had high to very high dependence, and the population had an average of 3.6 quit attempts. The odds ratio for self-reported abstinence was 2.2 after 6 months. “The app is not only effective, but also can be prescribed on an extrabudgetary basis,” said Dr. Andreas.

This story was translated from the Medscape German edition using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

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E-cigarettes entered the market as consumer products without comprehensive toxicological testing,based on the assessment that they were 95% less harmful than traditional cigarettes. Further, consumer dvertising suggests that e-cigarettes are a good alternative to conventional combustible cigarettes and can serve as a gateway to quitting smoking.

However, hen considering damage to the endothelium and toxicity, e-cigarettes have a negative impact like that of conventional cigarettes. Moreover, switching to e-cigarettes often leads to dual use, said Stefan Andreas, MD, director of the Lungenfachklinik in Immenhausen, Germany, at the Congress of the German Respiratory Society and Intensive Care Medicine. 
 

Subclinical Atherosclerosis

Because e-cigarettes have emerged relatively recently, long-term studies on their cardiac consequences are not yet available. Dr. Andreas explained that the impact on endothelial function is relevant for risk assessment. Endothelial function is a biomarker for early, subclinical atherosclerosis. “If endothelial function is impaired, the risk for heart attack and stroke is significantly increased 5-10 years later,” said Dr. Andreas.

The results of a crossover study showed reduced vascular elasticity after consuming both tobacco cigarettes and e-cigarettes. The study included 20 smokers, and endothelial function was measured using flow-mediated vasodilation.

Significant effects on the vessels were also found in a study of 31 participants who had never smoked. The study participants inhaled a nicotine-free aerosol from e-cigarettes. Before and after, parameters of endothelial function were examined using a 3.0-T MRI. After aerosol inhalation, the resistance index was 2.3% higher (P < .05), and flow-mediated vascular dilation was reduced by 34% (P < .001).

A recent review involving 372 participants from China showed that e-cigarettes lead to an increase in pulse wave velocity, with a difference of 3.08 (P < .001). “Pulse wave velocity is also a marker of endothelial function: The stiffer the vessels, the higher the pulse wave velocity,” said Dr. Andreas. The authors of the review concluded that “e-cigarettes should not be promoted as a healthier alternative to tobacco smoking.”
 

No Harmless Alternative

A recent review compared the effects of tobacco smoking and e-cigarettes. The results showed that vaping e-cigarettes causes oxidative stress, inflammation, endothelial dysfunction, and related cardiovascular consequences. The authors attributed the findings to overlapping toxic compounds in vapor and tobacco smoke and similar pathomechanical features of vaping and smoking. Although the toxic mixture in smoke is more complex, both e-cigarettes and tobacco cigarettes “impaired endothelial function to a similar extent,” they wrote. The authors attributed this finding to oxidative stress as the central mechanism.

“There is increasing evidence that e-cigarettes are not a harmless alternative to tobacco cigarettes,” wrote Thomas Münzel, MD, professor of cardiology at the University of Mainz and his team in their 2020 review, which examined studies in humans and animals. They provided an overview of the effects of tobacco/hookah smoking and e-cigarette vaping on endothelial function. They also pointed to emerging adverse effects on the proteome, transcriptome, epigenome, microbiome, and circadian clock.

Finally, a toxicological review of e-cigarettes also found alarmingly high levels of carcinogens and toxins that could have long-term effects on other organs, including the development of neurological symptoms, lung cancer, cardiovascular diseases, and cavities.

Dr. Andreas observed that even small amounts, such as those obtained through secondhand smoking, can be harmful. In 2007, Dr. Andreas and his colleagues showed that even low exposure to tobacco smoke can lead to a significant increase in cardiovascular events.
 

 

 

Conflicts of Interest 

Dr. Andreas recommended closely examining the studies that suggest that e-cigarettes are less risky. “It is noticeable that there is a significant difference depending on whether publications were supported by the tobacco industry or not,” he emphasized.

Danish scientists found that a conflict of interest (COI) has a strong influence on study results. “In studies without a COI, e-cigarettes are found to cause damage 95% of the time. In contrast, when there is a strong conflict of interest, the result is often ‘no harm,’” said Dr. Andreas.

This effect is quite relevant for the discussion of e-cigarettes. “If scientists make a critical statement in a position paper, there will always be someone who says, ‘No, it’s different, there are these and those publications.’ The true nature of interest-driven publications on e-cigarettes is not always easy to discern,” said Dr. Andreas.
 

No Gateway to Quitting 

E-cigarettes are used in clinical studies for tobacco cessation. The results of a randomized study showed that significantly more smokers who were switched to e-cigarettes quit smoking, compared with controls. But there was no significant difference in complete smoking cessation between groups. Moreover, 45% of smokers who switched to e-cigarettes became dual users, compared with 11% of controls.

“Translating these results means that for one person who quits smoking by using e-cigarettes, they gain five people who use both traditional cigarettes and e-cigarettes,” explained Dr. Andreas.

In their recent review, Münzel and colleagues pointed out that the assessment that e-cigarettes could help with quitting might be wrong. Rather, it seems that “e-cigarettes have the opposite effect.” They also note that the age of initiation for e-cigarettes is generally lower than for tobacco cigarettes: Consumption often starts at age 13 or 14 years. And the consumption of e-cigarettes among children and adolescents increased by 7% from 2016 to 2023.

A meta-analysis published at the end of February also shows that e-cigarettes are about as dangerous as tobacco cigarettes. They are more dangerous than not smoking, and dual use is more dangerous than tobacco cigarettes alone. “There is a need to reassess the assumption that e-cigarette use provides substantial harm reduction across all cigarette-caused diseases, particularly accounting for dual use,” wrote the authors.

“One must always consider that e-cigarettes have only been available for a relatively short time. We can only see the cumulative toxicity in 10, 20 years when we have patients who have smoked e-cigarettes only for 20 years,” said Dr. Andreas. Ultimately, however, e-cigarettes promote dual use and, consequently, additive toxicity.
 

Nicotine Replacement Therapies 

Quitting smoking reduces the risk of cardiovascular events and premature death by 40%, even among patients with cardiovascular disease, according to a Cochrane meta-analysis. Smoking cessation reduces the risk for cardiovascular death by 39%, the risk for major adverse cardiovascular events by 43%, the risk for heart attack by 36%, the risk for stroke by 30%, and overall mortality by 40%.

Quitting smoking is the most effective measure for risk reduction, as a meta-analysis of 20 studies in patients with coronary heart disease found. Smoking cessation was associated with a 36% risk reduction compared with 29% risk reduction for statin therapy, 23% risk reduction with beta-blockers and ACE inhibitors and 15% risk reduction with aspirin.

Dr. Andreas emphasized that nicotine replacement therapies are well-researched and safe even in cardiovascular disease, as shown by a US study that included patients who had sustained a heart attack. A group of the participants was treated with nicotine patches for 10 weeks, while the other group received a placebo. After 14 weeks, 21% of the nicotine patch group achieved abstinence vs 9% of the placebo group (P = .001). Transdermal nicotine application does not lead to a significant increase in cardiovascular events in high-risk patients.

The German “Nonsmoker Heroes” app has proven to be an effective means of behavioral therapeutic coaching. A recent study of it included 17 study centers with 661 participants. About 21% of the subjects had chronic obstructive pulmonary disease, 19% had asthma. Smoking onset occurred at age 16 years. The subjects were highly dependent: > 72% had at least moderate dependence, > 58% had high to very high dependence, and the population had an average of 3.6 quit attempts. The odds ratio for self-reported abstinence was 2.2 after 6 months. “The app is not only effective, but also can be prescribed on an extrabudgetary basis,” said Dr. Andreas.

This story was translated from the Medscape German edition using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

E-cigarettes entered the market as consumer products without comprehensive toxicological testing,based on the assessment that they were 95% less harmful than traditional cigarettes. Further, consumer dvertising suggests that e-cigarettes are a good alternative to conventional combustible cigarettes and can serve as a gateway to quitting smoking.

However, hen considering damage to the endothelium and toxicity, e-cigarettes have a negative impact like that of conventional cigarettes. Moreover, switching to e-cigarettes often leads to dual use, said Stefan Andreas, MD, director of the Lungenfachklinik in Immenhausen, Germany, at the Congress of the German Respiratory Society and Intensive Care Medicine. 
 

Subclinical Atherosclerosis

Because e-cigarettes have emerged relatively recently, long-term studies on their cardiac consequences are not yet available. Dr. Andreas explained that the impact on endothelial function is relevant for risk assessment. Endothelial function is a biomarker for early, subclinical atherosclerosis. “If endothelial function is impaired, the risk for heart attack and stroke is significantly increased 5-10 years later,” said Dr. Andreas.

The results of a crossover study showed reduced vascular elasticity after consuming both tobacco cigarettes and e-cigarettes. The study included 20 smokers, and endothelial function was measured using flow-mediated vasodilation.

Significant effects on the vessels were also found in a study of 31 participants who had never smoked. The study participants inhaled a nicotine-free aerosol from e-cigarettes. Before and after, parameters of endothelial function were examined using a 3.0-T MRI. After aerosol inhalation, the resistance index was 2.3% higher (P < .05), and flow-mediated vascular dilation was reduced by 34% (P < .001).

A recent review involving 372 participants from China showed that e-cigarettes lead to an increase in pulse wave velocity, with a difference of 3.08 (P < .001). “Pulse wave velocity is also a marker of endothelial function: The stiffer the vessels, the higher the pulse wave velocity,” said Dr. Andreas. The authors of the review concluded that “e-cigarettes should not be promoted as a healthier alternative to tobacco smoking.”
 

No Harmless Alternative

A recent review compared the effects of tobacco smoking and e-cigarettes. The results showed that vaping e-cigarettes causes oxidative stress, inflammation, endothelial dysfunction, and related cardiovascular consequences. The authors attributed the findings to overlapping toxic compounds in vapor and tobacco smoke and similar pathomechanical features of vaping and smoking. Although the toxic mixture in smoke is more complex, both e-cigarettes and tobacco cigarettes “impaired endothelial function to a similar extent,” they wrote. The authors attributed this finding to oxidative stress as the central mechanism.

“There is increasing evidence that e-cigarettes are not a harmless alternative to tobacco cigarettes,” wrote Thomas Münzel, MD, professor of cardiology at the University of Mainz and his team in their 2020 review, which examined studies in humans and animals. They provided an overview of the effects of tobacco/hookah smoking and e-cigarette vaping on endothelial function. They also pointed to emerging adverse effects on the proteome, transcriptome, epigenome, microbiome, and circadian clock.

Finally, a toxicological review of e-cigarettes also found alarmingly high levels of carcinogens and toxins that could have long-term effects on other organs, including the development of neurological symptoms, lung cancer, cardiovascular diseases, and cavities.

Dr. Andreas observed that even small amounts, such as those obtained through secondhand smoking, can be harmful. In 2007, Dr. Andreas and his colleagues showed that even low exposure to tobacco smoke can lead to a significant increase in cardiovascular events.
 

 

 

Conflicts of Interest 

Dr. Andreas recommended closely examining the studies that suggest that e-cigarettes are less risky. “It is noticeable that there is a significant difference depending on whether publications were supported by the tobacco industry or not,” he emphasized.

Danish scientists found that a conflict of interest (COI) has a strong influence on study results. “In studies without a COI, e-cigarettes are found to cause damage 95% of the time. In contrast, when there is a strong conflict of interest, the result is often ‘no harm,’” said Dr. Andreas.

This effect is quite relevant for the discussion of e-cigarettes. “If scientists make a critical statement in a position paper, there will always be someone who says, ‘No, it’s different, there are these and those publications.’ The true nature of interest-driven publications on e-cigarettes is not always easy to discern,” said Dr. Andreas.
 

No Gateway to Quitting 

E-cigarettes are used in clinical studies for tobacco cessation. The results of a randomized study showed that significantly more smokers who were switched to e-cigarettes quit smoking, compared with controls. But there was no significant difference in complete smoking cessation between groups. Moreover, 45% of smokers who switched to e-cigarettes became dual users, compared with 11% of controls.

“Translating these results means that for one person who quits smoking by using e-cigarettes, they gain five people who use both traditional cigarettes and e-cigarettes,” explained Dr. Andreas.

In their recent review, Münzel and colleagues pointed out that the assessment that e-cigarettes could help with quitting might be wrong. Rather, it seems that “e-cigarettes have the opposite effect.” They also note that the age of initiation for e-cigarettes is generally lower than for tobacco cigarettes: Consumption often starts at age 13 or 14 years. And the consumption of e-cigarettes among children and adolescents increased by 7% from 2016 to 2023.

A meta-analysis published at the end of February also shows that e-cigarettes are about as dangerous as tobacco cigarettes. They are more dangerous than not smoking, and dual use is more dangerous than tobacco cigarettes alone. “There is a need to reassess the assumption that e-cigarette use provides substantial harm reduction across all cigarette-caused diseases, particularly accounting for dual use,” wrote the authors.

“One must always consider that e-cigarettes have only been available for a relatively short time. We can only see the cumulative toxicity in 10, 20 years when we have patients who have smoked e-cigarettes only for 20 years,” said Dr. Andreas. Ultimately, however, e-cigarettes promote dual use and, consequently, additive toxicity.
 

Nicotine Replacement Therapies 

Quitting smoking reduces the risk of cardiovascular events and premature death by 40%, even among patients with cardiovascular disease, according to a Cochrane meta-analysis. Smoking cessation reduces the risk for cardiovascular death by 39%, the risk for major adverse cardiovascular events by 43%, the risk for heart attack by 36%, the risk for stroke by 30%, and overall mortality by 40%.

Quitting smoking is the most effective measure for risk reduction, as a meta-analysis of 20 studies in patients with coronary heart disease found. Smoking cessation was associated with a 36% risk reduction compared with 29% risk reduction for statin therapy, 23% risk reduction with beta-blockers and ACE inhibitors and 15% risk reduction with aspirin.

Dr. Andreas emphasized that nicotine replacement therapies are well-researched and safe even in cardiovascular disease, as shown by a US study that included patients who had sustained a heart attack. A group of the participants was treated with nicotine patches for 10 weeks, while the other group received a placebo. After 14 weeks, 21% of the nicotine patch group achieved abstinence vs 9% of the placebo group (P = .001). Transdermal nicotine application does not lead to a significant increase in cardiovascular events in high-risk patients.

The German “Nonsmoker Heroes” app has proven to be an effective means of behavioral therapeutic coaching. A recent study of it included 17 study centers with 661 participants. About 21% of the subjects had chronic obstructive pulmonary disease, 19% had asthma. Smoking onset occurred at age 16 years. The subjects were highly dependent: > 72% had at least moderate dependence, > 58% had high to very high dependence, and the population had an average of 3.6 quit attempts. The odds ratio for self-reported abstinence was 2.2 after 6 months. “The app is not only effective, but also can be prescribed on an extrabudgetary basis,” said Dr. Andreas.

This story was translated from the Medscape German edition using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

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‘No Pulse’: An MD’s First Night Off in 2 Weeks Turns Grave

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Mon, 04/15/2024 - 17:23

 

Emergencies happen anywhere, anytime, and sometimes, medical professionals find themselves in situations where they are the only ones who can help. Is There a Doctor in the House? is a series by this news organization that tells these stories.

It was my first night off after 12 days. It was a Friday night, and I went to a bar in Naples to get a beer with some friends. As it turned out, it wasn’t a night off after all.

As soon as we got inside, we heard over the speaker that they needed medical personnel and to please go to the left side of the bar. I thought it would be syncope or something like that.

I went over there and saw a woman holding up a man. He was basically leaning all over her. The light was low, and the music was pounding. I started to assess him and tried to get him to answer me. No response. I checked for pulses — nothing.

Now, I’m in a bar, right? It’s a cardiac arrest. The first thing you think is overdose or alcohol. I asked the woman if the man was doing any drugs. She said she didn’t know. Turns out they were both employees. He was a bouncer and a DJ.

The woman helped me lower him to the floor. I checked again for a pulse. Still nothing. I said, “Call 911,” and started compressions.

The difficult part was the place was completely dark. I knew where his body was on the floor. I could see his chest. But I couldn’t see his face at all.

It was also extremely loud with the music thumping. After a while, they finally shut it off.

Pretty soon, the security personnel from the bar brought me an automated external defibrillator, and it showed the man was having V-fib arrest. I shocked him. Still no pulse. I continued with cardiopulmonary resuscitation (CPR).

I hadn’t noticed, but lots of people were crowding around us. Somebody came up and said, “He’s my friend. He has a 9-year-old daughter. He can’t die. Let me help with the compressions.” I was like, “Go for it.”

The guy started kind of pushing on the man’s abdomen. He had no idea how to do compressions. I said, “Okay, let me take over again.”

Out of the crowd, nobody else volunteered to help. No one asked me, “Hey, what can I do?” Meanwhile, I found out later that someone was filming the whole thing on their phone.

But what the guy said about the man’s young daughter stayed in my brain. I thought, we need to keep going.

I did more compressions and shocked him again. Still no pulse. At that point, the police and emergency medical services showed up. They checked, nothing had changed, so they got him into the ambulance.

I asked one of the paramedics, “Where are you taking him? I can call ahead.”

But he said, “That’s HIPAA. We can’t tell you.” They also wouldn’t let me go with him in the ambulance.

“I have an active Florida license, and I work in the ICU [intensive care unit],” I said.

“No, we need to follow our protocol,” he replied.

I understood that, but I just wanted to help.

It was around 10:30 PM by then, and I was drenched in sweat. I had to go home. The first thing I did after taking a shower was open the computer and check my system. I needed to find out what happened to the guy.

I was looking for admissions, and I didn’t see him. I called the main hospital downtown and the one in North Naples. I couldn’t find him anywhere. I stayed up until almost 1:00 AM checking for his name. At that point I thought, okay, maybe he died.

The next night, Saturday, I was home and got a call from one of my colleagues. “Hey, were you in a bar yesterday? Did you do CPR on somebody?”

“How did you know?” I said.

He said the paramedics had described me — “a tall doctor with glasses who was a nice guy.” It was funny that he knew that was me.

He told me, “The guy’s alive. He’s sick and needs to be put on dialysis, but he’s alive.”

Apparently, the guy had gone to the emergency department at North Naples, and the doctors in the emergency room (ER) worked on him for over an hour. They did continuous CPR and shocked him for close to 40 minutes. They finally got his pulse back, and after that, he was transferred to the main hospital ICU. They didn’t admit him at the ER, which was why I couldn’t find his name.

On Sunday, I was checking my patients’ charts for the ICU that coming week. And there he was. I saw his name and the documentation by the ED that CPR was provided by a critical care doctor in the field. He was still alive. That gave me so much joy.

So, the man I had helped became my patient. When I saw him on Monday, he was intubated and needed dialysis. I finally saw his face and thought, Oh, so that’s what you look like. I hadn’t realized he was only 39 years old.

When he was awake, I explained to him I was the doctor that provided CPR at the bar. He was very grateful, but of course, he didn’t remember anything.

Eventually, I met his daughter, and she just said, “Thank you for allowing me to have my dad.”

The funny part is that he broke his leg. Well, that’s not funny, but no one had any idea how it happened. That was his only complaint. He was asking me, “Doctor, how did you break my leg?”

“Hey, I have no idea how you broke your leg,” I replied. “I was trying to save your life.”

He was in the hospital for almost a month but made a full recovery. The amazing part: After all the evaluations, he has no neurological deficits. He’s back to a normal life now.

They never found a cause for the cardiac arrest. I mean, he had an ejection fraction of 10%. All my money was on something drug related, but that wasn’t the case. They’d done a cardiac cut, and there was no obstruction. They couldn’t find a reason.

We’ve become friends. He still works as a DJ at the bar. He changed his name to “DJ the Survivor” or something like that.

Sometimes, he’ll text me: “Doctor, what are you doing? You want to come down to the bar?”

I’m like, “No. I don’t.”

It’s been more than a year, but I remember every detail. When you go into medicine, you dream that one day you’ll be able to say, “I saved somebody.”

He texted me a year later and told me he’s celebrating two birthdays now. He said, “I’m turning 1 year old today!”

I think about the value of life. How we can take it for granted. We think, I’m young, nothing is going to happen to me. But this guy was 39. He went to work and died that night.

I was able to help bring him back. That makes me thankful for every day.

Jose Valle Giler, MD, is a pulmonary, critical care, and sleep medicine physician at NCH Healthcare System in Naples, Florida.

A version of this article appeared on Medscape.com .

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Emergencies happen anywhere, anytime, and sometimes, medical professionals find themselves in situations where they are the only ones who can help. Is There a Doctor in the House? is a series by this news organization that tells these stories.

It was my first night off after 12 days. It was a Friday night, and I went to a bar in Naples to get a beer with some friends. As it turned out, it wasn’t a night off after all.

As soon as we got inside, we heard over the speaker that they needed medical personnel and to please go to the left side of the bar. I thought it would be syncope or something like that.

I went over there and saw a woman holding up a man. He was basically leaning all over her. The light was low, and the music was pounding. I started to assess him and tried to get him to answer me. No response. I checked for pulses — nothing.

Now, I’m in a bar, right? It’s a cardiac arrest. The first thing you think is overdose or alcohol. I asked the woman if the man was doing any drugs. She said she didn’t know. Turns out they were both employees. He was a bouncer and a DJ.

The woman helped me lower him to the floor. I checked again for a pulse. Still nothing. I said, “Call 911,” and started compressions.

The difficult part was the place was completely dark. I knew where his body was on the floor. I could see his chest. But I couldn’t see his face at all.

It was also extremely loud with the music thumping. After a while, they finally shut it off.

Pretty soon, the security personnel from the bar brought me an automated external defibrillator, and it showed the man was having V-fib arrest. I shocked him. Still no pulse. I continued with cardiopulmonary resuscitation (CPR).

I hadn’t noticed, but lots of people were crowding around us. Somebody came up and said, “He’s my friend. He has a 9-year-old daughter. He can’t die. Let me help with the compressions.” I was like, “Go for it.”

The guy started kind of pushing on the man’s abdomen. He had no idea how to do compressions. I said, “Okay, let me take over again.”

Out of the crowd, nobody else volunteered to help. No one asked me, “Hey, what can I do?” Meanwhile, I found out later that someone was filming the whole thing on their phone.

But what the guy said about the man’s young daughter stayed in my brain. I thought, we need to keep going.

I did more compressions and shocked him again. Still no pulse. At that point, the police and emergency medical services showed up. They checked, nothing had changed, so they got him into the ambulance.

I asked one of the paramedics, “Where are you taking him? I can call ahead.”

But he said, “That’s HIPAA. We can’t tell you.” They also wouldn’t let me go with him in the ambulance.

“I have an active Florida license, and I work in the ICU [intensive care unit],” I said.

“No, we need to follow our protocol,” he replied.

I understood that, but I just wanted to help.

It was around 10:30 PM by then, and I was drenched in sweat. I had to go home. The first thing I did after taking a shower was open the computer and check my system. I needed to find out what happened to the guy.

I was looking for admissions, and I didn’t see him. I called the main hospital downtown and the one in North Naples. I couldn’t find him anywhere. I stayed up until almost 1:00 AM checking for his name. At that point I thought, okay, maybe he died.

The next night, Saturday, I was home and got a call from one of my colleagues. “Hey, were you in a bar yesterday? Did you do CPR on somebody?”

“How did you know?” I said.

He said the paramedics had described me — “a tall doctor with glasses who was a nice guy.” It was funny that he knew that was me.

He told me, “The guy’s alive. He’s sick and needs to be put on dialysis, but he’s alive.”

Apparently, the guy had gone to the emergency department at North Naples, and the doctors in the emergency room (ER) worked on him for over an hour. They did continuous CPR and shocked him for close to 40 minutes. They finally got his pulse back, and after that, he was transferred to the main hospital ICU. They didn’t admit him at the ER, which was why I couldn’t find his name.

On Sunday, I was checking my patients’ charts for the ICU that coming week. And there he was. I saw his name and the documentation by the ED that CPR was provided by a critical care doctor in the field. He was still alive. That gave me so much joy.

So, the man I had helped became my patient. When I saw him on Monday, he was intubated and needed dialysis. I finally saw his face and thought, Oh, so that’s what you look like. I hadn’t realized he was only 39 years old.

When he was awake, I explained to him I was the doctor that provided CPR at the bar. He was very grateful, but of course, he didn’t remember anything.

Eventually, I met his daughter, and she just said, “Thank you for allowing me to have my dad.”

The funny part is that he broke his leg. Well, that’s not funny, but no one had any idea how it happened. That was his only complaint. He was asking me, “Doctor, how did you break my leg?”

“Hey, I have no idea how you broke your leg,” I replied. “I was trying to save your life.”

He was in the hospital for almost a month but made a full recovery. The amazing part: After all the evaluations, he has no neurological deficits. He’s back to a normal life now.

They never found a cause for the cardiac arrest. I mean, he had an ejection fraction of 10%. All my money was on something drug related, but that wasn’t the case. They’d done a cardiac cut, and there was no obstruction. They couldn’t find a reason.

We’ve become friends. He still works as a DJ at the bar. He changed his name to “DJ the Survivor” or something like that.

Sometimes, he’ll text me: “Doctor, what are you doing? You want to come down to the bar?”

I’m like, “No. I don’t.”

It’s been more than a year, but I remember every detail. When you go into medicine, you dream that one day you’ll be able to say, “I saved somebody.”

He texted me a year later and told me he’s celebrating two birthdays now. He said, “I’m turning 1 year old today!”

I think about the value of life. How we can take it for granted. We think, I’m young, nothing is going to happen to me. But this guy was 39. He went to work and died that night.

I was able to help bring him back. That makes me thankful for every day.

Jose Valle Giler, MD, is a pulmonary, critical care, and sleep medicine physician at NCH Healthcare System in Naples, Florida.

A version of this article appeared on Medscape.com .

 

Emergencies happen anywhere, anytime, and sometimes, medical professionals find themselves in situations where they are the only ones who can help. Is There a Doctor in the House? is a series by this news organization that tells these stories.

It was my first night off after 12 days. It was a Friday night, and I went to a bar in Naples to get a beer with some friends. As it turned out, it wasn’t a night off after all.

As soon as we got inside, we heard over the speaker that they needed medical personnel and to please go to the left side of the bar. I thought it would be syncope or something like that.

I went over there and saw a woman holding up a man. He was basically leaning all over her. The light was low, and the music was pounding. I started to assess him and tried to get him to answer me. No response. I checked for pulses — nothing.

Now, I’m in a bar, right? It’s a cardiac arrest. The first thing you think is overdose or alcohol. I asked the woman if the man was doing any drugs. She said she didn’t know. Turns out they were both employees. He was a bouncer and a DJ.

The woman helped me lower him to the floor. I checked again for a pulse. Still nothing. I said, “Call 911,” and started compressions.

The difficult part was the place was completely dark. I knew where his body was on the floor. I could see his chest. But I couldn’t see his face at all.

It was also extremely loud with the music thumping. After a while, they finally shut it off.

Pretty soon, the security personnel from the bar brought me an automated external defibrillator, and it showed the man was having V-fib arrest. I shocked him. Still no pulse. I continued with cardiopulmonary resuscitation (CPR).

I hadn’t noticed, but lots of people were crowding around us. Somebody came up and said, “He’s my friend. He has a 9-year-old daughter. He can’t die. Let me help with the compressions.” I was like, “Go for it.”

The guy started kind of pushing on the man’s abdomen. He had no idea how to do compressions. I said, “Okay, let me take over again.”

Out of the crowd, nobody else volunteered to help. No one asked me, “Hey, what can I do?” Meanwhile, I found out later that someone was filming the whole thing on their phone.

But what the guy said about the man’s young daughter stayed in my brain. I thought, we need to keep going.

I did more compressions and shocked him again. Still no pulse. At that point, the police and emergency medical services showed up. They checked, nothing had changed, so they got him into the ambulance.

I asked one of the paramedics, “Where are you taking him? I can call ahead.”

But he said, “That’s HIPAA. We can’t tell you.” They also wouldn’t let me go with him in the ambulance.

“I have an active Florida license, and I work in the ICU [intensive care unit],” I said.

“No, we need to follow our protocol,” he replied.

I understood that, but I just wanted to help.

It was around 10:30 PM by then, and I was drenched in sweat. I had to go home. The first thing I did after taking a shower was open the computer and check my system. I needed to find out what happened to the guy.

I was looking for admissions, and I didn’t see him. I called the main hospital downtown and the one in North Naples. I couldn’t find him anywhere. I stayed up until almost 1:00 AM checking for his name. At that point I thought, okay, maybe he died.

The next night, Saturday, I was home and got a call from one of my colleagues. “Hey, were you in a bar yesterday? Did you do CPR on somebody?”

“How did you know?” I said.

He said the paramedics had described me — “a tall doctor with glasses who was a nice guy.” It was funny that he knew that was me.

He told me, “The guy’s alive. He’s sick and needs to be put on dialysis, but he’s alive.”

Apparently, the guy had gone to the emergency department at North Naples, and the doctors in the emergency room (ER) worked on him for over an hour. They did continuous CPR and shocked him for close to 40 minutes. They finally got his pulse back, and after that, he was transferred to the main hospital ICU. They didn’t admit him at the ER, which was why I couldn’t find his name.

On Sunday, I was checking my patients’ charts for the ICU that coming week. And there he was. I saw his name and the documentation by the ED that CPR was provided by a critical care doctor in the field. He was still alive. That gave me so much joy.

So, the man I had helped became my patient. When I saw him on Monday, he was intubated and needed dialysis. I finally saw his face and thought, Oh, so that’s what you look like. I hadn’t realized he was only 39 years old.

When he was awake, I explained to him I was the doctor that provided CPR at the bar. He was very grateful, but of course, he didn’t remember anything.

Eventually, I met his daughter, and she just said, “Thank you for allowing me to have my dad.”

The funny part is that he broke his leg. Well, that’s not funny, but no one had any idea how it happened. That was his only complaint. He was asking me, “Doctor, how did you break my leg?”

“Hey, I have no idea how you broke your leg,” I replied. “I was trying to save your life.”

He was in the hospital for almost a month but made a full recovery. The amazing part: After all the evaluations, he has no neurological deficits. He’s back to a normal life now.

They never found a cause for the cardiac arrest. I mean, he had an ejection fraction of 10%. All my money was on something drug related, but that wasn’t the case. They’d done a cardiac cut, and there was no obstruction. They couldn’t find a reason.

We’ve become friends. He still works as a DJ at the bar. He changed his name to “DJ the Survivor” or something like that.

Sometimes, he’ll text me: “Doctor, what are you doing? You want to come down to the bar?”

I’m like, “No. I don’t.”

It’s been more than a year, but I remember every detail. When you go into medicine, you dream that one day you’ll be able to say, “I saved somebody.”

He texted me a year later and told me he’s celebrating two birthdays now. He said, “I’m turning 1 year old today!”

I think about the value of life. How we can take it for granted. We think, I’m young, nothing is going to happen to me. But this guy was 39. He went to work and died that night.

I was able to help bring him back. That makes me thankful for every day.

Jose Valle Giler, MD, is a pulmonary, critical care, and sleep medicine physician at NCH Healthcare System in Naples, Florida.

A version of this article appeared on Medscape.com .

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Statins Raise Diabetes Risk, but CV Benefit Outweighs It

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Thu, 04/11/2024 - 15:59

Statins raise the risks for increased glucose levels and the development of type 2 diabetes among people who don’t have it at baseline, but those risks are outweighed by the cardiovascular benefit, new data suggested.

The findings come from an analysis of individual participant data from a total of 23 randomized trials of statin therapy involving 154,664 individuals. In people without diabetes at baseline, statin therapy produces a dose-dependent increase in the risk for diabetes diagnosis, particularly among those whose glycemia marker levels are already at the diagnostic threshold.

Statins also tend to raise glucose levels in people who already have diabetes, but “the diabetes-related risks arising from the small changes in glycemia resulting from statin therapy are greatly outweighed by the benefits of statins on major vascular events when the direct clinical consequences of these outcomes are taken into consideration,” wrote the authors of the Cholesterol Treatment Trialists’ (CTT) Collaboration in their paper, published online in The Lancet Diabetes & Endocrinology.

Moreover, they say, “since the effect of statin therapy on measures of glycemia within an individual is small, there is likely to be little clinical benefit in measuring glucose concentrations and A1c values routinely after starting statin therapy with the aim of making comparisons to values taken before the initiation of a statin. However, people should continue to be screened for diabetes and associated risk factors and have their glycemic control monitored in accordance with current clinical guidelines.”

The CTT is co-led by Christina Reith, MBChB, PhD, and David Preiss, PhD, FRCPath, MRCP, both of the Nuffield Department of Population Health, University of Oxford, England.

In an accompanying editorial, Hertzel C. Gerstein, MD, and Marie Pigeyre, MD, PhD, both of McMaster University and Hamilton Health Sciences, Hamilton, Ontario, Canada, noted that the decreased absolute annual incidence of life-threatening cardiovascular outcomes with statins in people at high risk for type 2 diabetes “clearly exceeds the 0.1%-1.3% per year increased absolute incidence of type 2 diabetes.”

Dr. Gerstein and Dr. Pigeyre also said “these findings emphasize the importance of holistic care. As people at risk for cardiovascular outcomes are also at risk for type 2 diabetes, any prescription of a statin should be accompanied by promoting proven strategies to prevent or delay diabetes, such as modest weight reduction and increased physical activity. Finally, these findings emphasize the importance of always being alert for harmful adverse effects, even with the most beneficial and successful preventive therapies.”
 

Statins Raise Diabetes Risk, Glucose Levels Slightly

The meta-analysis of trials in the CTT Collaboration included individual participant data from 19 double-blind randomized, controlled trials with a median follow-up of 4.3 years comparing statins with placebo in a total of 123,940 participants, including 18% who had known type 2 diabetes at randomization. Also analyzed were another four double-blind trials of lower- vs higher-intensity statins involving a total of 30,724 participants followed for a median of 4.9 years, with 15% having diabetes at baseline.

In the 19 trials of low- or moderate-intensity statins vs placebo, statins resulted in a significant 10% increase in new-onset diabetes compared with placebo (rate ratio, 1.10), while high-intensity statins raised the risk by an also significant 36% (1.36). This translated to a mean absolute excess of 0.12% per year of treatment.

Compared with less intensive statin therapy, more intensive statin therapy resulted in a significant 10% proportional increase in new-onset diabetes (1.10), giving an absolute annual excess of 0.22%.

In the statin vs placebo trials, differences in A1c values from placebo were 0.06 percentage points higher for low- or moderate-intensity statins and 0.08 points greater for high-intensity statins.

Nearly two thirds (62%) of the excess cases of new-onset diabetes occurred among participants in the highest quarter of the baseline glycemia distribution for both low-intensity or moderate-intensity and high-intensity statin therapy.

And among participants who already had diabetes at baseline, there was a significant 10% relative increase in worsening glycemia (defined by adverse glycemic event, A1c increase of ≥ 0.5 percentage points, or medication escalation) with low- or moderate-intensity statins compared with placebo and a 24% relative increase in the high-intensity trials.

The Nuffield Department of Population Health has an explicit policy of not accepting any personal honoraria payments directly or indirectly from the pharmaceutical and food industries. It seeks reimbursement to the University of Oxford for the costs of travel and accommodation to participate in scientific meetings. Dr. Reith reported receiving funding to the University of Oxford from the UK National Institute for Health and Care Research Health Technology Assessment Programme and holding unpaid roles on the Clinical Data Interchange Standards Consortium as a board member and WHO as a scientific advisor. Dr. Preiss reported receiving funding to his research institution (but no personal funding) from Novartis for the ORION 4 trial of inclisiran, Novo Nordisk for the ASCEND PLUS trial of semaglutide, and Boehringer Ingelheim and Eli Lilly for the EMPA-KIDNEY trial and being a committee member for a National Institute for Health and Care Excellence guideline.

Dr. Gerstein holds the McMaster-Sanofi Population Health Institute Chair in Diabetes Research and Care. He reported research grants from Eli Lilly, AstraZeneca, Novo Nordisk, Hanmi, and Merck; continuing medical education grants to McMaster University from Eli Lilly, Abbott, Sanofi, Novo Nordisk, and Boehringer Ingelheim; honoraria for speaking from AstraZeneca, Eli Lilly, Novo Nordisk, DKSH, Zuellig Pharma, Sanofi, and Jiangsu Hanson; and consulting fees from Abbott, Eli Lilly, Novo Nordisk, Pfizer, Carbon Brand, Sanofi, Kowa, and Hanmi. Pigeyre had no disclosures.
 

A version of this article appeared on Medscape.com.

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Statins raise the risks for increased glucose levels and the development of type 2 diabetes among people who don’t have it at baseline, but those risks are outweighed by the cardiovascular benefit, new data suggested.

The findings come from an analysis of individual participant data from a total of 23 randomized trials of statin therapy involving 154,664 individuals. In people without diabetes at baseline, statin therapy produces a dose-dependent increase in the risk for diabetes diagnosis, particularly among those whose glycemia marker levels are already at the diagnostic threshold.

Statins also tend to raise glucose levels in people who already have diabetes, but “the diabetes-related risks arising from the small changes in glycemia resulting from statin therapy are greatly outweighed by the benefits of statins on major vascular events when the direct clinical consequences of these outcomes are taken into consideration,” wrote the authors of the Cholesterol Treatment Trialists’ (CTT) Collaboration in their paper, published online in The Lancet Diabetes & Endocrinology.

Moreover, they say, “since the effect of statin therapy on measures of glycemia within an individual is small, there is likely to be little clinical benefit in measuring glucose concentrations and A1c values routinely after starting statin therapy with the aim of making comparisons to values taken before the initiation of a statin. However, people should continue to be screened for diabetes and associated risk factors and have their glycemic control monitored in accordance with current clinical guidelines.”

The CTT is co-led by Christina Reith, MBChB, PhD, and David Preiss, PhD, FRCPath, MRCP, both of the Nuffield Department of Population Health, University of Oxford, England.

In an accompanying editorial, Hertzel C. Gerstein, MD, and Marie Pigeyre, MD, PhD, both of McMaster University and Hamilton Health Sciences, Hamilton, Ontario, Canada, noted that the decreased absolute annual incidence of life-threatening cardiovascular outcomes with statins in people at high risk for type 2 diabetes “clearly exceeds the 0.1%-1.3% per year increased absolute incidence of type 2 diabetes.”

Dr. Gerstein and Dr. Pigeyre also said “these findings emphasize the importance of holistic care. As people at risk for cardiovascular outcomes are also at risk for type 2 diabetes, any prescription of a statin should be accompanied by promoting proven strategies to prevent or delay diabetes, such as modest weight reduction and increased physical activity. Finally, these findings emphasize the importance of always being alert for harmful adverse effects, even with the most beneficial and successful preventive therapies.”
 

Statins Raise Diabetes Risk, Glucose Levels Slightly

The meta-analysis of trials in the CTT Collaboration included individual participant data from 19 double-blind randomized, controlled trials with a median follow-up of 4.3 years comparing statins with placebo in a total of 123,940 participants, including 18% who had known type 2 diabetes at randomization. Also analyzed were another four double-blind trials of lower- vs higher-intensity statins involving a total of 30,724 participants followed for a median of 4.9 years, with 15% having diabetes at baseline.

In the 19 trials of low- or moderate-intensity statins vs placebo, statins resulted in a significant 10% increase in new-onset diabetes compared with placebo (rate ratio, 1.10), while high-intensity statins raised the risk by an also significant 36% (1.36). This translated to a mean absolute excess of 0.12% per year of treatment.

Compared with less intensive statin therapy, more intensive statin therapy resulted in a significant 10% proportional increase in new-onset diabetes (1.10), giving an absolute annual excess of 0.22%.

In the statin vs placebo trials, differences in A1c values from placebo were 0.06 percentage points higher for low- or moderate-intensity statins and 0.08 points greater for high-intensity statins.

Nearly two thirds (62%) of the excess cases of new-onset diabetes occurred among participants in the highest quarter of the baseline glycemia distribution for both low-intensity or moderate-intensity and high-intensity statin therapy.

And among participants who already had diabetes at baseline, there was a significant 10% relative increase in worsening glycemia (defined by adverse glycemic event, A1c increase of ≥ 0.5 percentage points, or medication escalation) with low- or moderate-intensity statins compared with placebo and a 24% relative increase in the high-intensity trials.

The Nuffield Department of Population Health has an explicit policy of not accepting any personal honoraria payments directly or indirectly from the pharmaceutical and food industries. It seeks reimbursement to the University of Oxford for the costs of travel and accommodation to participate in scientific meetings. Dr. Reith reported receiving funding to the University of Oxford from the UK National Institute for Health and Care Research Health Technology Assessment Programme and holding unpaid roles on the Clinical Data Interchange Standards Consortium as a board member and WHO as a scientific advisor. Dr. Preiss reported receiving funding to his research institution (but no personal funding) from Novartis for the ORION 4 trial of inclisiran, Novo Nordisk for the ASCEND PLUS trial of semaglutide, and Boehringer Ingelheim and Eli Lilly for the EMPA-KIDNEY trial and being a committee member for a National Institute for Health and Care Excellence guideline.

Dr. Gerstein holds the McMaster-Sanofi Population Health Institute Chair in Diabetes Research and Care. He reported research grants from Eli Lilly, AstraZeneca, Novo Nordisk, Hanmi, and Merck; continuing medical education grants to McMaster University from Eli Lilly, Abbott, Sanofi, Novo Nordisk, and Boehringer Ingelheim; honoraria for speaking from AstraZeneca, Eli Lilly, Novo Nordisk, DKSH, Zuellig Pharma, Sanofi, and Jiangsu Hanson; and consulting fees from Abbott, Eli Lilly, Novo Nordisk, Pfizer, Carbon Brand, Sanofi, Kowa, and Hanmi. Pigeyre had no disclosures.
 

A version of this article appeared on Medscape.com.

Statins raise the risks for increased glucose levels and the development of type 2 diabetes among people who don’t have it at baseline, but those risks are outweighed by the cardiovascular benefit, new data suggested.

The findings come from an analysis of individual participant data from a total of 23 randomized trials of statin therapy involving 154,664 individuals. In people without diabetes at baseline, statin therapy produces a dose-dependent increase in the risk for diabetes diagnosis, particularly among those whose glycemia marker levels are already at the diagnostic threshold.

Statins also tend to raise glucose levels in people who already have diabetes, but “the diabetes-related risks arising from the small changes in glycemia resulting from statin therapy are greatly outweighed by the benefits of statins on major vascular events when the direct clinical consequences of these outcomes are taken into consideration,” wrote the authors of the Cholesterol Treatment Trialists’ (CTT) Collaboration in their paper, published online in The Lancet Diabetes & Endocrinology.

Moreover, they say, “since the effect of statin therapy on measures of glycemia within an individual is small, there is likely to be little clinical benefit in measuring glucose concentrations and A1c values routinely after starting statin therapy with the aim of making comparisons to values taken before the initiation of a statin. However, people should continue to be screened for diabetes and associated risk factors and have their glycemic control monitored in accordance with current clinical guidelines.”

The CTT is co-led by Christina Reith, MBChB, PhD, and David Preiss, PhD, FRCPath, MRCP, both of the Nuffield Department of Population Health, University of Oxford, England.

In an accompanying editorial, Hertzel C. Gerstein, MD, and Marie Pigeyre, MD, PhD, both of McMaster University and Hamilton Health Sciences, Hamilton, Ontario, Canada, noted that the decreased absolute annual incidence of life-threatening cardiovascular outcomes with statins in people at high risk for type 2 diabetes “clearly exceeds the 0.1%-1.3% per year increased absolute incidence of type 2 diabetes.”

Dr. Gerstein and Dr. Pigeyre also said “these findings emphasize the importance of holistic care. As people at risk for cardiovascular outcomes are also at risk for type 2 diabetes, any prescription of a statin should be accompanied by promoting proven strategies to prevent or delay diabetes, such as modest weight reduction and increased physical activity. Finally, these findings emphasize the importance of always being alert for harmful adverse effects, even with the most beneficial and successful preventive therapies.”
 

Statins Raise Diabetes Risk, Glucose Levels Slightly

The meta-analysis of trials in the CTT Collaboration included individual participant data from 19 double-blind randomized, controlled trials with a median follow-up of 4.3 years comparing statins with placebo in a total of 123,940 participants, including 18% who had known type 2 diabetes at randomization. Also analyzed were another four double-blind trials of lower- vs higher-intensity statins involving a total of 30,724 participants followed for a median of 4.9 years, with 15% having diabetes at baseline.

In the 19 trials of low- or moderate-intensity statins vs placebo, statins resulted in a significant 10% increase in new-onset diabetes compared with placebo (rate ratio, 1.10), while high-intensity statins raised the risk by an also significant 36% (1.36). This translated to a mean absolute excess of 0.12% per year of treatment.

Compared with less intensive statin therapy, more intensive statin therapy resulted in a significant 10% proportional increase in new-onset diabetes (1.10), giving an absolute annual excess of 0.22%.

In the statin vs placebo trials, differences in A1c values from placebo were 0.06 percentage points higher for low- or moderate-intensity statins and 0.08 points greater for high-intensity statins.

Nearly two thirds (62%) of the excess cases of new-onset diabetes occurred among participants in the highest quarter of the baseline glycemia distribution for both low-intensity or moderate-intensity and high-intensity statin therapy.

And among participants who already had diabetes at baseline, there was a significant 10% relative increase in worsening glycemia (defined by adverse glycemic event, A1c increase of ≥ 0.5 percentage points, or medication escalation) with low- or moderate-intensity statins compared with placebo and a 24% relative increase in the high-intensity trials.

The Nuffield Department of Population Health has an explicit policy of not accepting any personal honoraria payments directly or indirectly from the pharmaceutical and food industries. It seeks reimbursement to the University of Oxford for the costs of travel and accommodation to participate in scientific meetings. Dr. Reith reported receiving funding to the University of Oxford from the UK National Institute for Health and Care Research Health Technology Assessment Programme and holding unpaid roles on the Clinical Data Interchange Standards Consortium as a board member and WHO as a scientific advisor. Dr. Preiss reported receiving funding to his research institution (but no personal funding) from Novartis for the ORION 4 trial of inclisiran, Novo Nordisk for the ASCEND PLUS trial of semaglutide, and Boehringer Ingelheim and Eli Lilly for the EMPA-KIDNEY trial and being a committee member for a National Institute for Health and Care Excellence guideline.

Dr. Gerstein holds the McMaster-Sanofi Population Health Institute Chair in Diabetes Research and Care. He reported research grants from Eli Lilly, AstraZeneca, Novo Nordisk, Hanmi, and Merck; continuing medical education grants to McMaster University from Eli Lilly, Abbott, Sanofi, Novo Nordisk, and Boehringer Ingelheim; honoraria for speaking from AstraZeneca, Eli Lilly, Novo Nordisk, DKSH, Zuellig Pharma, Sanofi, and Jiangsu Hanson; and consulting fees from Abbott, Eli Lilly, Novo Nordisk, Pfizer, Carbon Brand, Sanofi, Kowa, and Hanmi. Pigeyre had no disclosures.
 

A version of this article appeared on Medscape.com.

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