MDedge Cardiology

A year of high-intensity interval training seemed to benefit obese middle-aged adults at a high risk of heart failure, but omega-3 fatty acid supplementation didn’t have any effect on cardiac biomarkers measured in a small, single-center, prospective study.

“One year of HIIT training reduces adiposity but had no consistent effect on myocardial triglyceride content or visceral adiposity,” wrote lead author Christopher M. Hearon Jr., PhD, and colleagues in JACC: Heart Failure. “However, long-duration HIIT improves fitness and induces favorable cardiac remodeling.” Omega-3 supplementation, however, had “no independent or additive effect.” Dr. Hearon is an instructor of applied clinical research at University of Texas Southwestern Medical Center in Dallas.

Investigators there and at the Institute for Exercise and Environmental Medicine at Texas Health Presbyterian Hospital Dallas studied 80 patients aged 40-55 years classified as high risk for HF and obese, randomizing them to a year of high-intensity interval training (HIIT) with supplementation of either 1.6 g omega-3 FA or placebo daily; or to a control group split between supplementation or placebo. Fifty-six patients completed the 1-year study, with a compliance rate of 90% in the HIIT group and 92% in those assigned omega-3 FA supplementation.

Carl J. “Chip” Lavie, MD, of the John Ochsner Heart and Vascular Institute in New Orleans, commented that, although the study was “extremely well done from an excellent research group,” it was limited by its small population and relatively short follow-up. Future research should evaluate HIIT and moderate exercise on clinical events over a longer term as well as different doses of omega-3 “There is tremendous potential for omega-3 in heart failure prevention and treatment.”
 

HIIT boosts exercise capacity, more

In the study, the HIIT group showed improvement in a number of cardiac markers: around a 22% improvement in exercise capacity as measured by absolute peak and relative peak oxygen uptake (VO₂), even without significant weight loss. They improved an average of 0.43 L/min (0.32-0.53; P < .0001) and 4.46 mL/kg per minute (3.18-5.56; ^P < .0001), respectively.

The researchers attributed the increase in peak VO₂ to an increase in peak cardiac output averaging 2.15 L/min (95% confidence interval, 0.90-3.39; P = .001) and stroke volume averaging 9.46 mL (95% CI, 0.65-18.27; P = .04). A year of exercise training also resulted in changes in cardiac remodeling, including increases in left ventricle mass and LV end diastolic volume, averaging 9.4 g (95% CI, 4.36-14.44; P < .001) and 12.33 mL (95% CI, 5.61-19.05; P < .001), respectively.  

The study also found that neither intervention had any appreciable impact on body weight, body mass index, body surface area or lean mass, or markers of arterial or local carotid stiffness. The exercise group had a modest decrease in fat mass, averaging 2.63 kg (95% CI,–4.81 to –0.46; P = .02), but without any effect from omega-3 supplementation.

The study acknowledged that high-dose omega-3 supplements have been found to lower triglyceride levels in people with severe hypertriglyceridemia, and hypothesized that HIIT alone or with omega-3 supplementation would improve fitness and biomarkers in people with stage A HF. “Contrary to our hypothesis, we found that one year of n-3FA [omega-3 FA] supplementation had no detectable effect on any parameter related to cardiopulmonary fitness, cardiovascular remodeling/stiffness, visceral adiposity, or myocardial triglyceride content,” Dr. Hearon and colleagues wrote.

The study “shows that obese middle-aged patients with heart failure with preserved ejection fraction [HFpEF] can markedly improve their fitness with HIIT and, generally, fitness is one of the strongest if not the strongest predictor of prognosis and survival,” said Dr. Lavie.

“Studies are needed on exercise that improves fitness in both HF with reduced ejection fraction and HFpEF, but especially HFpEF,” he said.

The study received funding from the American Heart Association Strategically Focused Research Network. Dr. Hearon and coauthors have no relevant disclosures. Dr. Lavie is a speaker and consultant for PAI Health, the Global Organization for EPA and DHA Omega-3s and DSM Nutritional Products.
 

A year of high-intensity interval training seemed to benefit obese middle-aged adults at a high risk of heart failure, but omega-3 fatty acid supplementation didn’t have any effect on cardiac biomarkers measured in a small, single-center, prospective study.

“One year of HIIT training reduces adiposity but had no consistent effect on myocardial triglyceride content or visceral adiposity,” wrote lead author Christopher M. Hearon Jr., PhD, and colleagues in JACC: Heart Failure. “However, long-duration HIIT improves fitness and induces favorable cardiac remodeling.” Omega-3 supplementation, however, had “no independent or additive effect.” Dr. Hearon is an instructor of applied clinical research at University of Texas Southwestern Medical Center in Dallas.

Investigators there and at the Institute for Exercise and Environmental Medicine at Texas Health Presbyterian Hospital Dallas studied 80 patients aged 40-55 years classified as high risk for HF and obese, randomizing them to a year of high-intensity interval training (HIIT) with supplementation of either 1.6 g omega-3 FA or placebo daily; or to a control group split between supplementation or placebo. Fifty-six patients completed the 1-year study, with a compliance rate of 90% in the HIIT group and 92% in those assigned omega-3 FA supplementation.

Carl J. “Chip” Lavie, MD, of the John Ochsner Heart and Vascular Institute in New Orleans, commented that, although the study was “extremely well done from an excellent research group,” it was limited by its small population and relatively short follow-up. Future research should evaluate HIIT and moderate exercise on clinical events over a longer term as well as different doses of omega-3 “There is tremendous potential for omega-3 in heart failure prevention and treatment.”
 

HIIT boosts exercise capacity, more

In the study, the HIIT group showed improvement in a number of cardiac markers: around a 22% improvement in exercise capacity as measured by absolute peak and relative peak oxygen uptake (VO₂), even without significant weight loss. They improved an average of 0.43 L/min (0.32-0.53; P < .0001) and 4.46 mL/kg per minute (3.18-5.56; ^P < .0001), respectively.

The researchers attributed the increase in peak VO₂ to an increase in peak cardiac output averaging 2.15 L/min (95% confidence interval, 0.90-3.39; P = .001) and stroke volume averaging 9.46 mL (95% CI, 0.65-18.27; P = .04). A year of exercise training also resulted in changes in cardiac remodeling, including increases in left ventricle mass and LV end diastolic volume, averaging 9.4 g (95% CI, 4.36-14.44; P < .001) and 12.33 mL (95% CI, 5.61-19.05; P < .001), respectively.  

The study also found that neither intervention had any appreciable impact on body weight, body mass index, body surface area or lean mass, or markers of arterial or local carotid stiffness. The exercise group had a modest decrease in fat mass, averaging 2.63 kg (95% CI,–4.81 to –0.46; P = .02), but without any effect from omega-3 supplementation.

The study acknowledged that high-dose omega-3 supplements have been found to lower triglyceride levels in people with severe hypertriglyceridemia, and hypothesized that HIIT alone or with omega-3 supplementation would improve fitness and biomarkers in people with stage A HF. “Contrary to our hypothesis, we found that one year of n-3FA [omega-3 FA] supplementation had no detectable effect on any parameter related to cardiopulmonary fitness, cardiovascular remodeling/stiffness, visceral adiposity, or myocardial triglyceride content,” Dr. Hearon and colleagues wrote.

The study “shows that obese middle-aged patients with heart failure with preserved ejection fraction [HFpEF] can markedly improve their fitness with HIIT and, generally, fitness is one of the strongest if not the strongest predictor of prognosis and survival,” said Dr. Lavie.

“Studies are needed on exercise that improves fitness in both HF with reduced ejection fraction and HFpEF, but especially HFpEF,” he said.

The study received funding from the American Heart Association Strategically Focused Research Network. Dr. Hearon and coauthors have no relevant disclosures. Dr. Lavie is a speaker and consultant for PAI Health, the Global Organization for EPA and DHA Omega-3s and DSM Nutritional Products.
 

A year of high-intensity interval training seemed to benefit obese middle-aged adults at a high risk of heart failure, but omega-3 fatty acid supplementation didn’t have any effect on cardiac biomarkers measured in a small, single-center, prospective study.

“One year of HIIT training reduces adiposity but had no consistent effect on myocardial triglyceride content or visceral adiposity,” wrote lead author Christopher M. Hearon Jr., PhD, and colleagues in JACC: Heart Failure. “However, long-duration HIIT improves fitness and induces favorable cardiac remodeling.” Omega-3 supplementation, however, had “no independent or additive effect.” Dr. Hearon is an instructor of applied clinical research at University of Texas Southwestern Medical Center in Dallas.

Investigators there and at the Institute for Exercise and Environmental Medicine at Texas Health Presbyterian Hospital Dallas studied 80 patients aged 40-55 years classified as high risk for HF and obese, randomizing them to a year of high-intensity interval training (HIIT) with supplementation of either 1.6 g omega-3 FA or placebo daily; or to a control group split between supplementation or placebo. Fifty-six patients completed the 1-year study, with a compliance rate of 90% in the HIIT group and 92% in those assigned omega-3 FA supplementation.

Carl J. “Chip” Lavie, MD, of the John Ochsner Heart and Vascular Institute in New Orleans, commented that, although the study was “extremely well done from an excellent research group,” it was limited by its small population and relatively short follow-up. Future research should evaluate HIIT and moderate exercise on clinical events over a longer term as well as different doses of omega-3 “There is tremendous potential for omega-3 in heart failure prevention and treatment.”
 

HIIT boosts exercise capacity, more

In the study, the HIIT group showed improvement in a number of cardiac markers: around a 22% improvement in exercise capacity as measured by absolute peak and relative peak oxygen uptake (VO₂), even without significant weight loss. They improved an average of 0.43 L/min (0.32-0.53; P < .0001) and 4.46 mL/kg per minute (3.18-5.56; ^P < .0001), respectively.

The researchers attributed the increase in peak VO₂ to an increase in peak cardiac output averaging 2.15 L/min (95% confidence interval, 0.90-3.39; P = .001) and stroke volume averaging 9.46 mL (95% CI, 0.65-18.27; P = .04). A year of exercise training also resulted in changes in cardiac remodeling, including increases in left ventricle mass and LV end diastolic volume, averaging 9.4 g (95% CI, 4.36-14.44; P < .001) and 12.33 mL (95% CI, 5.61-19.05; P < .001), respectively.  

The study also found that neither intervention had any appreciable impact on body weight, body mass index, body surface area or lean mass, or markers of arterial or local carotid stiffness. The exercise group had a modest decrease in fat mass, averaging 2.63 kg (95% CI,–4.81 to –0.46; P = .02), but without any effect from omega-3 supplementation.

The study acknowledged that high-dose omega-3 supplements have been found to lower triglyceride levels in people with severe hypertriglyceridemia, and hypothesized that HIIT alone or with omega-3 supplementation would improve fitness and biomarkers in people with stage A HF. “Contrary to our hypothesis, we found that one year of n-3FA [omega-3 FA] supplementation had no detectable effect on any parameter related to cardiopulmonary fitness, cardiovascular remodeling/stiffness, visceral adiposity, or myocardial triglyceride content,” Dr. Hearon and colleagues wrote.

The study “shows that obese middle-aged patients with heart failure with preserved ejection fraction [HFpEF] can markedly improve their fitness with HIIT and, generally, fitness is one of the strongest if not the strongest predictor of prognosis and survival,” said Dr. Lavie.

“Studies are needed on exercise that improves fitness in both HF with reduced ejection fraction and HFpEF, but especially HFpEF,” he said.

The study received funding from the American Heart Association Strategically Focused Research Network. Dr. Hearon and coauthors have no relevant disclosures. Dr. Lavie is a speaker and consultant for PAI Health, the Global Organization for EPA and DHA Omega-3s and DSM Nutritional Products.
 

A survey of 323 women cardiologists who were working while they were pregnant showed that nearly 75% experienced discriminatory maternity-leave practices, some of which were likely violations of the Family and Medical Leave Act (FMLA).

More than 40% saw their salaries decreased during their year of pregnancy, 38% were required to perform extra service or call before taking maternity leave, exposing them to occupational hazards such as radiation, and 40% experienced a pregnancy complication, significantly higher than the general population and other medical specialties.

Additionally, of those who performed extra service or call, 18% were placed on bedrest before delivery, compared with 7.4% who did not perform extra service or call.

More than half of respondents reported that pregnancy negatively impacted their careers, and 42.4% said they experienced pressure to return to work and a delay in promotions, both illegal practices under the FMLA.

The survey is published in the Journal of the American College of Cardiology.

“Childbearing is difficult for women in cardiology with more than double the rate of gestational complications of the U.S. population, frequent income loss out of proportion to reduced productivity, and for nearly half, has an adverse impact on their career,” lead author Martha Gulati, MD, University of Arizona, Phoenix, said in a statement.

“While many professions struggle to create environments supportive of pregnancy and child-rearing, the prevalence of illegal behavior in cardiology is quite high and presents substantial legal risk for employers,” Dr. Gulati added.

C. Noel Bairey Merz, MD, professor of cardiology at Cedars-Sinai Smidt Heart Institute, Los Angeles, and a coauthor of the survey, told this news organization that it’s not surprising that such a situation exists, even “in this day and age.”

“I’m not surprised as a woman in cardiology myself. I was told by my training director that if I took off more than my allowed sick leave when I had my first and second children, I would have to repeat the year of training, so not surprised at all. I hear this from colleagues all the time,” Dr. Bairey Merz said.

The exchange left her feeling fearful for her career.

“Who wants to repeat a year? It pushes you back from a career standpoint, financially, everything. It also made me angry. I had a colleague who busted his leg in a motorcycle accident. He was unable to do any procedures for 16 weeks, and he didn’t have to repeat the year,” she pointed out.

The challenge that pregnancy represents is frequently cited by women as a deterrent for applying for a cardiology fellowship, Laxmi S. Mehta, MD, Ohio State University, Columbus, and colleagues wrote in an accompanying editorial.

The findings from the survey “reveal restrictive maternity leave data in a profession that has historically and currently continues to have a diversity problem,” they wrote.

“Maternity and pregnancy issues are a thing in cardiology,” Dr. Mehta said in an interview. “It’s one of the reasons why women get deterred from going into the field. It makes it challenging to choose cardiology if you perceive that the culture is negative, that it’s hard to be pregnant, or to bear children, or to take care of them post partum. It is problematic and it should not be occurring now.”

Leadership that condones such restrictive policies or even promotes them through ignorance and inaction needs to be held accountable, she added.

“We need to move forward from this negativity and make it more warm and welcoming to have families, whether you are a trainee or a practicing cardiologist, male or female. We need transparent and consistent parental leave policies and things like lactation support when a woman returns to work. That is a big issue,” Dr. Mehta said.

Having cardiovascular leaders champion the cause of adequate maternity and paternity leave are crucial to creating a newer, inclusive environment in cardiology.

As an example, Dr. Mehta recounted her own experience when she was in training 17 years ago.

“When I interviewed for a cardiology fellowship, one of the female program directors asked me if I was planning to have children, because if I did, the other fellows wouldn’t like it if they had to cover for me,” she said. “I ended up doing my fellowship where the chief of cardiology encouraged me to have children. He said: ‘Have your children during training, we will support you.’ And he did. I still had to do all of the call make-up and that stuff, but I worked in a supportive environment, and it made all the difference.”

“It’s about allyship,” she added. “You will have some people who are supportive and some who are not, but when you have the chief supporting you, you have a strong ally.”

The researchers suggest that one strategy is to temporarily replace cardiologists on maternity leave with locums, or “deepen the bench of coverage for clinical work, as is done for other absences. Given the expanding coverage of parental and family medical leaves, and awareness of these issues nationally, the need for this is likely to become less of an exception and more the rule.”

For example, nine states and Washington, D.C. now provide paid parental leave, they wrote, “and there is pending legislation in others.”

Dr. Bairey Merz and Dr. Mehta reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

A survey of 323 women cardiologists who were working while they were pregnant showed that nearly 75% experienced discriminatory maternity-leave practices, some of which were likely violations of the Family and Medical Leave Act (FMLA).

More than 40% saw their salaries decreased during their year of pregnancy, 38% were required to perform extra service or call before taking maternity leave, exposing them to occupational hazards such as radiation, and 40% experienced a pregnancy complication, significantly higher than the general population and other medical specialties.

Additionally, of those who performed extra service or call, 18% were placed on bedrest before delivery, compared with 7.4% who did not perform extra service or call.

More than half of respondents reported that pregnancy negatively impacted their careers, and 42.4% said they experienced pressure to return to work and a delay in promotions, both illegal practices under the FMLA.

The survey is published in the Journal of the American College of Cardiology.

“Childbearing is difficult for women in cardiology with more than double the rate of gestational complications of the U.S. population, frequent income loss out of proportion to reduced productivity, and for nearly half, has an adverse impact on their career,” lead author Martha Gulati, MD, University of Arizona, Phoenix, said in a statement.

“While many professions struggle to create environments supportive of pregnancy and child-rearing, the prevalence of illegal behavior in cardiology is quite high and presents substantial legal risk for employers,” Dr. Gulati added.

C. Noel Bairey Merz, MD, professor of cardiology at Cedars-Sinai Smidt Heart Institute, Los Angeles, and a coauthor of the survey, told this news organization that it’s not surprising that such a situation exists, even “in this day and age.”

“I’m not surprised as a woman in cardiology myself. I was told by my training director that if I took off more than my allowed sick leave when I had my first and second children, I would have to repeat the year of training, so not surprised at all. I hear this from colleagues all the time,” Dr. Bairey Merz said.

The exchange left her feeling fearful for her career.

“Who wants to repeat a year? It pushes you back from a career standpoint, financially, everything. It also made me angry. I had a colleague who busted his leg in a motorcycle accident. He was unable to do any procedures for 16 weeks, and he didn’t have to repeat the year,” she pointed out.

The challenge that pregnancy represents is frequently cited by women as a deterrent for applying for a cardiology fellowship, Laxmi S. Mehta, MD, Ohio State University, Columbus, and colleagues wrote in an accompanying editorial.

The findings from the survey “reveal restrictive maternity leave data in a profession that has historically and currently continues to have a diversity problem,” they wrote.

“Maternity and pregnancy issues are a thing in cardiology,” Dr. Mehta said in an interview. “It’s one of the reasons why women get deterred from going into the field. It makes it challenging to choose cardiology if you perceive that the culture is negative, that it’s hard to be pregnant, or to bear children, or to take care of them post partum. It is problematic and it should not be occurring now.”

Leadership that condones such restrictive policies or even promotes them through ignorance and inaction needs to be held accountable, she added.

“We need to move forward from this negativity and make it more warm and welcoming to have families, whether you are a trainee or a practicing cardiologist, male or female. We need transparent and consistent parental leave policies and things like lactation support when a woman returns to work. That is a big issue,” Dr. Mehta said.

Having cardiovascular leaders champion the cause of adequate maternity and paternity leave are crucial to creating a newer, inclusive environment in cardiology.

As an example, Dr. Mehta recounted her own experience when she was in training 17 years ago.

“When I interviewed for a cardiology fellowship, one of the female program directors asked me if I was planning to have children, because if I did, the other fellows wouldn’t like it if they had to cover for me,” she said. “I ended up doing my fellowship where the chief of cardiology encouraged me to have children. He said: ‘Have your children during training, we will support you.’ And he did. I still had to do all of the call make-up and that stuff, but I worked in a supportive environment, and it made all the difference.”

“It’s about allyship,” she added. “You will have some people who are supportive and some who are not, but when you have the chief supporting you, you have a strong ally.”

The researchers suggest that one strategy is to temporarily replace cardiologists on maternity leave with locums, or “deepen the bench of coverage for clinical work, as is done for other absences. Given the expanding coverage of parental and family medical leaves, and awareness of these issues nationally, the need for this is likely to become less of an exception and more the rule.”

For example, nine states and Washington, D.C. now provide paid parental leave, they wrote, “and there is pending legislation in others.”

Dr. Bairey Merz and Dr. Mehta reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

A survey of 323 women cardiologists who were working while they were pregnant showed that nearly 75% experienced discriminatory maternity-leave practices, some of which were likely violations of the Family and Medical Leave Act (FMLA).

More than 40% saw their salaries decreased during their year of pregnancy, 38% were required to perform extra service or call before taking maternity leave, exposing them to occupational hazards such as radiation, and 40% experienced a pregnancy complication, significantly higher than the general population and other medical specialties.

Additionally, of those who performed extra service or call, 18% were placed on bedrest before delivery, compared with 7.4% who did not perform extra service or call.

More than half of respondents reported that pregnancy negatively impacted their careers, and 42.4% said they experienced pressure to return to work and a delay in promotions, both illegal practices under the FMLA.

The survey is published in the Journal of the American College of Cardiology.

“Childbearing is difficult for women in cardiology with more than double the rate of gestational complications of the U.S. population, frequent income loss out of proportion to reduced productivity, and for nearly half, has an adverse impact on their career,” lead author Martha Gulati, MD, University of Arizona, Phoenix, said in a statement.

“While many professions struggle to create environments supportive of pregnancy and child-rearing, the prevalence of illegal behavior in cardiology is quite high and presents substantial legal risk for employers,” Dr. Gulati added.

C. Noel Bairey Merz, MD, professor of cardiology at Cedars-Sinai Smidt Heart Institute, Los Angeles, and a coauthor of the survey, told this news organization that it’s not surprising that such a situation exists, even “in this day and age.”

“I’m not surprised as a woman in cardiology myself. I was told by my training director that if I took off more than my allowed sick leave when I had my first and second children, I would have to repeat the year of training, so not surprised at all. I hear this from colleagues all the time,” Dr. Bairey Merz said.

The exchange left her feeling fearful for her career.

“Who wants to repeat a year? It pushes you back from a career standpoint, financially, everything. It also made me angry. I had a colleague who busted his leg in a motorcycle accident. He was unable to do any procedures for 16 weeks, and he didn’t have to repeat the year,” she pointed out.

The challenge that pregnancy represents is frequently cited by women as a deterrent for applying for a cardiology fellowship, Laxmi S. Mehta, MD, Ohio State University, Columbus, and colleagues wrote in an accompanying editorial.

The findings from the survey “reveal restrictive maternity leave data in a profession that has historically and currently continues to have a diversity problem,” they wrote.

“Maternity and pregnancy issues are a thing in cardiology,” Dr. Mehta said in an interview. “It’s one of the reasons why women get deterred from going into the field. It makes it challenging to choose cardiology if you perceive that the culture is negative, that it’s hard to be pregnant, or to bear children, or to take care of them post partum. It is problematic and it should not be occurring now.”

Leadership that condones such restrictive policies or even promotes them through ignorance and inaction needs to be held accountable, she added.

“We need to move forward from this negativity and make it more warm and welcoming to have families, whether you are a trainee or a practicing cardiologist, male or female. We need transparent and consistent parental leave policies and things like lactation support when a woman returns to work. That is a big issue,” Dr. Mehta said.

Having cardiovascular leaders champion the cause of adequate maternity and paternity leave are crucial to creating a newer, inclusive environment in cardiology.

As an example, Dr. Mehta recounted her own experience when she was in training 17 years ago.

“When I interviewed for a cardiology fellowship, one of the female program directors asked me if I was planning to have children, because if I did, the other fellows wouldn’t like it if they had to cover for me,” she said. “I ended up doing my fellowship where the chief of cardiology encouraged me to have children. He said: ‘Have your children during training, we will support you.’ And he did. I still had to do all of the call make-up and that stuff, but I worked in a supportive environment, and it made all the difference.”

“It’s about allyship,” she added. “You will have some people who are supportive and some who are not, but when you have the chief supporting you, you have a strong ally.”

The researchers suggest that one strategy is to temporarily replace cardiologists on maternity leave with locums, or “deepen the bench of coverage for clinical work, as is done for other absences. Given the expanding coverage of parental and family medical leaves, and awareness of these issues nationally, the need for this is likely to become less of an exception and more the rule.”

For example, nine states and Washington, D.C. now provide paid parental leave, they wrote, “and there is pending legislation in others.”

Dr. Bairey Merz and Dr. Mehta reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Cancer significantly raises a patient’s risk for cardiovascular morbidity and mortality, particularly within the first year after diagnosis and irrespective of cancer type, according to a population-based study.

The retrospective analysis, which included data from more than 200,000 patients with cancer, found that a new cancer diagnosis significantly increased the risk of cardiovascular (CV) death (hazard ratio [HR], 1.33) as well as other CV events, including stroke (HR, 1.44), heart failure (HR, 1.62) and pulmonary embolism (HR, 3.43).

From the results, the researchers concluded that a “new cancer diagnosis is independently associated with a significantly increased risk for cardiovascular death and nonfatal morbidity regardless of cancer site.”

The findings were published in the Journal of the American College of Cardiology: CardioOncology (2022 Mar;4[1]:85-94).

Patients with cancer and cancer survivors are known to have an increased risk for heart failure, but evidence on the risk for other CV outcomes remains less clear. In addition, the authors noted, many cancer therapies – including chest irradiation and chemotherapy – can increase a person’s risk of incident CV disease during treatment and after, but data on the long-term CV risk among cancer survivors conflict.

D. Ian Paterson, MD, of the University of Alberta, Edmonton, and coauthors wanted to clarify how a new cancer diagnosis at various sites and stages might affect a person’s risk for fatal and nonfatal CV events over the long term.

The current analysis included data from 224,016 patients with a new cancer diagnosis identified from an administrative database of more than 4.5 million adults residing in Alberta. The researcher identified 73,360 CV deaths and 470,481 nonfatal CV events between April 2007 and December 2018.

Comparing CV events in those with and in those without cancer, the authors found that patients with cancer had a 33% increased risk for CV mortality over the 12-year study follow-up, after adjusting for sociodemographic data and comorbidities (HR, 1.33; 95% confidence interval [CI], 1.29-1.37). Patients with cancer also had an increased risk for stroke (HR, 1.44), heart failure (HR, 1.62) and pulmonary embolism (HR, 3.43), though not myocardial infarction (HR, 1.01; 95% CI, 0.97 – 1.05), compared to those without cancer.

The extent of the risk varied somewhat by cancer stage, time from diagnosis, and cancer type.

A new cancer diagnosis put patients at a significantly higher risk of CV mortality, heart failure, stroke, or pulmonary embolism, regardless of the cancer site, but the risk of CV events was highest for patients with genitourinary, gastrointestinal, thoracic, nervous system, and hematologic malignancies. These patients accounted for more than half of the cancer cohort and more than 70% of the incident CV burden.

Patients with more advanced cancer were at the highest risk for poor CV outcomes, but even those with very early-stage disease faced an elevated risk.

The risk for CV events was greatest in the first year following a cancer diagnosis for all outcomes (HRs, 1.24-8.36) but remained significantly elevated for CV death, heart failure, and pulmonary embolism a decade later.

Overall, the authors concluded that “patients with cancer constitute a high-risk population for CV disease” over the long term and suggested that those with cancer “may benefit from comanagement that includes cardiologists as well as stroke and thrombosis specialists.”

In an accompanying editorial, Hiroshi Ohtsu of Juntendo University in Tokyo, and colleagues concluded that the work “has remarkable strengths” and important clinical implications. However, they said that additional steps may be warranted before translating these findings to clinical practice.

For example, the study is limited by its retrospective population-based design and the lack of data on cancer therapy as well as on several patient factors, including ethnicity, smoking, and physical activity.

The study authors agreed, noting that future work should evaluate how cancer therapies and other potential contributors to poor CV outcomes influence patients’ risk.

“Such work would potentially lead to better prediction of CV risk for patients with cancer and survivors and improved prevention and treatment strategies,” they wrote.

The study was supported by a foundation grant from the Canadian Institutes of Health Research. The authors have disclosed no relevant financial relationships. The editorial was supported in part by funding to individual authors from the Japan Society for the Promotion of Science/Ministry of Education, Culture, Sports, Science and Technology, the Ministry of Health, Labour and Welfare, and the Agency for Medical Research and Development.

A version of this article first appeared on Medscape.com.

Cancer significantly raises a patient’s risk for cardiovascular morbidity and mortality, particularly within the first year after diagnosis and irrespective of cancer type, according to a population-based study.

The retrospective analysis, which included data from more than 200,000 patients with cancer, found that a new cancer diagnosis significantly increased the risk of cardiovascular (CV) death (hazard ratio [HR], 1.33) as well as other CV events, including stroke (HR, 1.44), heart failure (HR, 1.62) and pulmonary embolism (HR, 3.43).

From the results, the researchers concluded that a “new cancer diagnosis is independently associated with a significantly increased risk for cardiovascular death and nonfatal morbidity regardless of cancer site.”

The findings were published in the Journal of the American College of Cardiology: CardioOncology (2022 Mar;4[1]:85-94).

Patients with cancer and cancer survivors are known to have an increased risk for heart failure, but evidence on the risk for other CV outcomes remains less clear. In addition, the authors noted, many cancer therapies – including chest irradiation and chemotherapy – can increase a person’s risk of incident CV disease during treatment and after, but data on the long-term CV risk among cancer survivors conflict.

D. Ian Paterson, MD, of the University of Alberta, Edmonton, and coauthors wanted to clarify how a new cancer diagnosis at various sites and stages might affect a person’s risk for fatal and nonfatal CV events over the long term.

The current analysis included data from 224,016 patients with a new cancer diagnosis identified from an administrative database of more than 4.5 million adults residing in Alberta. The researcher identified 73,360 CV deaths and 470,481 nonfatal CV events between April 2007 and December 2018.

Comparing CV events in those with and in those without cancer, the authors found that patients with cancer had a 33% increased risk for CV mortality over the 12-year study follow-up, after adjusting for sociodemographic data and comorbidities (HR, 1.33; 95% confidence interval [CI], 1.29-1.37). Patients with cancer also had an increased risk for stroke (HR, 1.44), heart failure (HR, 1.62) and pulmonary embolism (HR, 3.43), though not myocardial infarction (HR, 1.01; 95% CI, 0.97 – 1.05), compared to those without cancer.

The extent of the risk varied somewhat by cancer stage, time from diagnosis, and cancer type.

A new cancer diagnosis put patients at a significantly higher risk of CV mortality, heart failure, stroke, or pulmonary embolism, regardless of the cancer site, but the risk of CV events was highest for patients with genitourinary, gastrointestinal, thoracic, nervous system, and hematologic malignancies. These patients accounted for more than half of the cancer cohort and more than 70% of the incident CV burden.

Patients with more advanced cancer were at the highest risk for poor CV outcomes, but even those with very early-stage disease faced an elevated risk.

The risk for CV events was greatest in the first year following a cancer diagnosis for all outcomes (HRs, 1.24-8.36) but remained significantly elevated for CV death, heart failure, and pulmonary embolism a decade later.

Overall, the authors concluded that “patients with cancer constitute a high-risk population for CV disease” over the long term and suggested that those with cancer “may benefit from comanagement that includes cardiologists as well as stroke and thrombosis specialists.”

In an accompanying editorial, Hiroshi Ohtsu of Juntendo University in Tokyo, and colleagues concluded that the work “has remarkable strengths” and important clinical implications. However, they said that additional steps may be warranted before translating these findings to clinical practice.

For example, the study is limited by its retrospective population-based design and the lack of data on cancer therapy as well as on several patient factors, including ethnicity, smoking, and physical activity.

The study authors agreed, noting that future work should evaluate how cancer therapies and other potential contributors to poor CV outcomes influence patients’ risk.

“Such work would potentially lead to better prediction of CV risk for patients with cancer and survivors and improved prevention and treatment strategies,” they wrote.

The study was supported by a foundation grant from the Canadian Institutes of Health Research. The authors have disclosed no relevant financial relationships. The editorial was supported in part by funding to individual authors from the Japan Society for the Promotion of Science/Ministry of Education, Culture, Sports, Science and Technology, the Ministry of Health, Labour and Welfare, and the Agency for Medical Research and Development.

A version of this article first appeared on Medscape.com.

Cancer significantly raises a patient’s risk for cardiovascular morbidity and mortality, particularly within the first year after diagnosis and irrespective of cancer type, according to a population-based study.

The retrospective analysis, which included data from more than 200,000 patients with cancer, found that a new cancer diagnosis significantly increased the risk of cardiovascular (CV) death (hazard ratio [HR], 1.33) as well as other CV events, including stroke (HR, 1.44), heart failure (HR, 1.62) and pulmonary embolism (HR, 3.43).

From the results, the researchers concluded that a “new cancer diagnosis is independently associated with a significantly increased risk for cardiovascular death and nonfatal morbidity regardless of cancer site.”

The findings were published in the Journal of the American College of Cardiology: CardioOncology (2022 Mar;4[1]:85-94).

Patients with cancer and cancer survivors are known to have an increased risk for heart failure, but evidence on the risk for other CV outcomes remains less clear. In addition, the authors noted, many cancer therapies – including chest irradiation and chemotherapy – can increase a person’s risk of incident CV disease during treatment and after, but data on the long-term CV risk among cancer survivors conflict.

D. Ian Paterson, MD, of the University of Alberta, Edmonton, and coauthors wanted to clarify how a new cancer diagnosis at various sites and stages might affect a person’s risk for fatal and nonfatal CV events over the long term.

The current analysis included data from 224,016 patients with a new cancer diagnosis identified from an administrative database of more than 4.5 million adults residing in Alberta. The researcher identified 73,360 CV deaths and 470,481 nonfatal CV events between April 2007 and December 2018.

Comparing CV events in those with and in those without cancer, the authors found that patients with cancer had a 33% increased risk for CV mortality over the 12-year study follow-up, after adjusting for sociodemographic data and comorbidities (HR, 1.33; 95% confidence interval [CI], 1.29-1.37). Patients with cancer also had an increased risk for stroke (HR, 1.44), heart failure (HR, 1.62) and pulmonary embolism (HR, 3.43), though not myocardial infarction (HR, 1.01; 95% CI, 0.97 – 1.05), compared to those without cancer.

The extent of the risk varied somewhat by cancer stage, time from diagnosis, and cancer type.

A new cancer diagnosis put patients at a significantly higher risk of CV mortality, heart failure, stroke, or pulmonary embolism, regardless of the cancer site, but the risk of CV events was highest for patients with genitourinary, gastrointestinal, thoracic, nervous system, and hematologic malignancies. These patients accounted for more than half of the cancer cohort and more than 70% of the incident CV burden.

Patients with more advanced cancer were at the highest risk for poor CV outcomes, but even those with very early-stage disease faced an elevated risk.

The risk for CV events was greatest in the first year following a cancer diagnosis for all outcomes (HRs, 1.24-8.36) but remained significantly elevated for CV death, heart failure, and pulmonary embolism a decade later.

Overall, the authors concluded that “patients with cancer constitute a high-risk population for CV disease” over the long term and suggested that those with cancer “may benefit from comanagement that includes cardiologists as well as stroke and thrombosis specialists.”

In an accompanying editorial, Hiroshi Ohtsu of Juntendo University in Tokyo, and colleagues concluded that the work “has remarkable strengths” and important clinical implications. However, they said that additional steps may be warranted before translating these findings to clinical practice.

For example, the study is limited by its retrospective population-based design and the lack of data on cancer therapy as well as on several patient factors, including ethnicity, smoking, and physical activity.

The study authors agreed, noting that future work should evaluate how cancer therapies and other potential contributors to poor CV outcomes influence patients’ risk.

“Such work would potentially lead to better prediction of CV risk for patients with cancer and survivors and improved prevention and treatment strategies,” they wrote.

The study was supported by a foundation grant from the Canadian Institutes of Health Research. The authors have disclosed no relevant financial relationships. The editorial was supported in part by funding to individual authors from the Japan Society for the Promotion of Science/Ministry of Education, Culture, Sports, Science and Technology, the Ministry of Health, Labour and Welfare, and the Agency for Medical Research and Development.

A version of this article first appeared on Medscape.com.

More than half of research on homeopathic remedies is unpublished or unregistered, according to a new analysis.

Homeopathy is a form of alternative medicine based on the concept that increasing dilution of a substance leads to a stronger treatment effect.

The authors of the new paper, published in BMJ Evidence-Based Medicine, also found that a quarter of the 90 randomized published trials on homeopathic remedies they analyzed changed their results before publication.

The benefits of homeopathy touted in studies may be greatly exaggerated, suggest the authors, Gerald Gartlehner, MD, of Danube University, Krems, Austria, and colleagues.

The results raise awareness that published homeopathy trials represent a limited proportion of research, skewed toward favorable results, they wrote.

“This likely affects the validity of the body of evidence of homeopathic literature and may substantially overestimate the true treatment effect of homeopathic remedies,” they concluded.

Homeopathy as practiced today was developed approximately 200 years ago in Germany, and despite ongoing debate about its effectiveness, it remains a popular alternative to conventional medicine in many developed countries, the authors noted.

According to the National Institutes of Health, homeopathy is based on the idea of “like cures like,” meaning that a disease can be cured with a substance that produces similar symptoms in healthy people, and the “law of minimum dose,” meaning that a lower dose of medication will be more effective. “Many homeopathic products are so diluted that no molecules of the original substance remain,” according to the NIH.

Homeopathy is not subject to most regulatory requirements, so assessment of effectiveness of homeopathic remedies is limited to published data, the researchers said. “When no information is publicly available about the majority of homeopathic trials, sound conclusions about the efficacy and the risks of using homeopathic medicinal products for treating health conditions are impossible,” they wrote.
 

Study methods and findings

The researchers examined 17 trial registries for studies involving homeopathic remedies conducted since 2002.

The registries included clinicaltrials.gov, the EU Clinical Trials Register, and the International Clinical Trials Registry Platform up to April 2019 to identify registered homeopathy trials.

To determine whether registered trials were published and to identify trials that were published but unregistered, the researchers examined PubMed, the Allied and Complementary Medicine Database, Embase, and Google Scholar up to April 2021.

They found that approximately 38% of registered trials of homeopathy were never published, and 53% of the published randomized, controlled trials (RCTs) were not registered. Notably, 25% of the trials that were registered and published showed primary outcomes that were changed compared with the registry.

The number of registered homeopathy trials increased significantly over the past 5 years, but approximately one-third (30%) of trials published during the last 5 years were not registered, they said. In a meta-analysis, unregistered RCTs showed significantly greater treatment effects than registered RCTs, with standardized mean differences of –0.53 and –0.14, respectively.

The study findings were limited by several factors including the potential for missed records of studies not covered by the registries searched. Other limitations include the analysis of pooled data from homeopathic treatments that may not generalize to personalized homeopathy, and the exclusion of trials labeled as terminated or suspended.
 

Proceed with caution before recommending use of homeopathic remedies, says expert

Linda Girgis, MD, noted that prior to reading this report she had known that most homeopathic remedies didn’t have any evidence of being effective, and that, therefore, the results validated her understanding of the findings of studies of homeopathy.

The study is especially important at this time in the wake of the COVID-19 pandemic, Dr. Girgis, a family physician in private practice in South River, N.J., said in an interview.

“Many people are promoting treatments that don’t have any evidence that they are effective, and more people are turning to homeopathic treatments not knowing the risks and assuming they are safe,” she continued. “Many people are taking advantage of this and trying to cash in on this with ill-proven remedies.”

Homeopathic remedies become especially harmful when patients think they can use them instead of traditional medicine, she added.

Noting that some homeopathic remedies have been studied and show some evidence that they work, Dr. Girgis said there may be a role for certain ones in primary care.

“An example would be black cohosh or primrose oil for perimenopausal hot flashes. This could be a good alternative when you want to avoid hormonal supplements,” she said.

At the same time, Dr. Girgis advised clinicians to be cautious about suggesting homeopathic remedies to patients.

“Homeopathy seems to be a good money maker if you sell these products. However, you are not protected from liability and can be found more liable for prescribing off-label treatments or those not [Food and Drug Administration] approved,” Dr. Girgis said. Her general message to clinicians: Stick with evidence-based medicine.

Her message to patients who might want to pursue homeopathic remedies is that just because something is “homeopathic” or natural doesn’t mean that it is safe.

“There are some [homeopathic] products that have caused liver damage or other problems,” she explained. “Also, these remedies can interact with other medications.”

The study received no outside funding. The researchers and Dr. Girgis had no financial conflicts to disclose.

More than half of research on homeopathic remedies is unpublished or unregistered, according to a new analysis.

Homeopathy is a form of alternative medicine based on the concept that increasing dilution of a substance leads to a stronger treatment effect.

The authors of the new paper, published in BMJ Evidence-Based Medicine, also found that a quarter of the 90 randomized published trials on homeopathic remedies they analyzed changed their results before publication.

The benefits of homeopathy touted in studies may be greatly exaggerated, suggest the authors, Gerald Gartlehner, MD, of Danube University, Krems, Austria, and colleagues.

The results raise awareness that published homeopathy trials represent a limited proportion of research, skewed toward favorable results, they wrote.

“This likely affects the validity of the body of evidence of homeopathic literature and may substantially overestimate the true treatment effect of homeopathic remedies,” they concluded.

Homeopathy as practiced today was developed approximately 200 years ago in Germany, and despite ongoing debate about its effectiveness, it remains a popular alternative to conventional medicine in many developed countries, the authors noted.

According to the National Institutes of Health, homeopathy is based on the idea of “like cures like,” meaning that a disease can be cured with a substance that produces similar symptoms in healthy people, and the “law of minimum dose,” meaning that a lower dose of medication will be more effective. “Many homeopathic products are so diluted that no molecules of the original substance remain,” according to the NIH.

Homeopathy is not subject to most regulatory requirements, so assessment of effectiveness of homeopathic remedies is limited to published data, the researchers said. “When no information is publicly available about the majority of homeopathic trials, sound conclusions about the efficacy and the risks of using homeopathic medicinal products for treating health conditions are impossible,” they wrote.
 

Study methods and findings

The researchers examined 17 trial registries for studies involving homeopathic remedies conducted since 2002.

The registries included clinicaltrials.gov, the EU Clinical Trials Register, and the International Clinical Trials Registry Platform up to April 2019 to identify registered homeopathy trials.

To determine whether registered trials were published and to identify trials that were published but unregistered, the researchers examined PubMed, the Allied and Complementary Medicine Database, Embase, and Google Scholar up to April 2021.

They found that approximately 38% of registered trials of homeopathy were never published, and 53% of the published randomized, controlled trials (RCTs) were not registered. Notably, 25% of the trials that were registered and published showed primary outcomes that were changed compared with the registry.

The number of registered homeopathy trials increased significantly over the past 5 years, but approximately one-third (30%) of trials published during the last 5 years were not registered, they said. In a meta-analysis, unregistered RCTs showed significantly greater treatment effects than registered RCTs, with standardized mean differences of –0.53 and –0.14, respectively.

The study findings were limited by several factors including the potential for missed records of studies not covered by the registries searched. Other limitations include the analysis of pooled data from homeopathic treatments that may not generalize to personalized homeopathy, and the exclusion of trials labeled as terminated or suspended.
 

Proceed with caution before recommending use of homeopathic remedies, says expert

Linda Girgis, MD, noted that prior to reading this report she had known that most homeopathic remedies didn’t have any evidence of being effective, and that, therefore, the results validated her understanding of the findings of studies of homeopathy.

The study is especially important at this time in the wake of the COVID-19 pandemic, Dr. Girgis, a family physician in private practice in South River, N.J., said in an interview.

“Many people are promoting treatments that don’t have any evidence that they are effective, and more people are turning to homeopathic treatments not knowing the risks and assuming they are safe,” she continued. “Many people are taking advantage of this and trying to cash in on this with ill-proven remedies.”

Homeopathic remedies become especially harmful when patients think they can use them instead of traditional medicine, she added.

Noting that some homeopathic remedies have been studied and show some evidence that they work, Dr. Girgis said there may be a role for certain ones in primary care.

“An example would be black cohosh or primrose oil for perimenopausal hot flashes. This could be a good alternative when you want to avoid hormonal supplements,” she said.

At the same time, Dr. Girgis advised clinicians to be cautious about suggesting homeopathic remedies to patients.

“Homeopathy seems to be a good money maker if you sell these products. However, you are not protected from liability and can be found more liable for prescribing off-label treatments or those not [Food and Drug Administration] approved,” Dr. Girgis said. Her general message to clinicians: Stick with evidence-based medicine.

Her message to patients who might want to pursue homeopathic remedies is that just because something is “homeopathic” or natural doesn’t mean that it is safe.

“There are some [homeopathic] products that have caused liver damage or other problems,” she explained. “Also, these remedies can interact with other medications.”

The study received no outside funding. The researchers and Dr. Girgis had no financial conflicts to disclose.

More than half of research on homeopathic remedies is unpublished or unregistered, according to a new analysis.

Homeopathy is a form of alternative medicine based on the concept that increasing dilution of a substance leads to a stronger treatment effect.

The authors of the new paper, published in BMJ Evidence-Based Medicine, also found that a quarter of the 90 randomized published trials on homeopathic remedies they analyzed changed their results before publication.

The benefits of homeopathy touted in studies may be greatly exaggerated, suggest the authors, Gerald Gartlehner, MD, of Danube University, Krems, Austria, and colleagues.

The results raise awareness that published homeopathy trials represent a limited proportion of research, skewed toward favorable results, they wrote.

“This likely affects the validity of the body of evidence of homeopathic literature and may substantially overestimate the true treatment effect of homeopathic remedies,” they concluded.

Homeopathy as practiced today was developed approximately 200 years ago in Germany, and despite ongoing debate about its effectiveness, it remains a popular alternative to conventional medicine in many developed countries, the authors noted.

According to the National Institutes of Health, homeopathy is based on the idea of “like cures like,” meaning that a disease can be cured with a substance that produces similar symptoms in healthy people, and the “law of minimum dose,” meaning that a lower dose of medication will be more effective. “Many homeopathic products are so diluted that no molecules of the original substance remain,” according to the NIH.

Homeopathy is not subject to most regulatory requirements, so assessment of effectiveness of homeopathic remedies is limited to published data, the researchers said. “When no information is publicly available about the majority of homeopathic trials, sound conclusions about the efficacy and the risks of using homeopathic medicinal products for treating health conditions are impossible,” they wrote.
 

Study methods and findings

The researchers examined 17 trial registries for studies involving homeopathic remedies conducted since 2002.

The registries included clinicaltrials.gov, the EU Clinical Trials Register, and the International Clinical Trials Registry Platform up to April 2019 to identify registered homeopathy trials.

To determine whether registered trials were published and to identify trials that were published but unregistered, the researchers examined PubMed, the Allied and Complementary Medicine Database, Embase, and Google Scholar up to April 2021.

They found that approximately 38% of registered trials of homeopathy were never published, and 53% of the published randomized, controlled trials (RCTs) were not registered. Notably, 25% of the trials that were registered and published showed primary outcomes that were changed compared with the registry.

The number of registered homeopathy trials increased significantly over the past 5 years, but approximately one-third (30%) of trials published during the last 5 years were not registered, they said. In a meta-analysis, unregistered RCTs showed significantly greater treatment effects than registered RCTs, with standardized mean differences of –0.53 and –0.14, respectively.

The study findings were limited by several factors including the potential for missed records of studies not covered by the registries searched. Other limitations include the analysis of pooled data from homeopathic treatments that may not generalize to personalized homeopathy, and the exclusion of trials labeled as terminated or suspended.
 

Proceed with caution before recommending use of homeopathic remedies, says expert

Linda Girgis, MD, noted that prior to reading this report she had known that most homeopathic remedies didn’t have any evidence of being effective, and that, therefore, the results validated her understanding of the findings of studies of homeopathy.

The study is especially important at this time in the wake of the COVID-19 pandemic, Dr. Girgis, a family physician in private practice in South River, N.J., said in an interview.

“Many people are promoting treatments that don’t have any evidence that they are effective, and more people are turning to homeopathic treatments not knowing the risks and assuming they are safe,” she continued. “Many people are taking advantage of this and trying to cash in on this with ill-proven remedies.”

Homeopathic remedies become especially harmful when patients think they can use them instead of traditional medicine, she added.

Noting that some homeopathic remedies have been studied and show some evidence that they work, Dr. Girgis said there may be a role for certain ones in primary care.

“An example would be black cohosh or primrose oil for perimenopausal hot flashes. This could be a good alternative when you want to avoid hormonal supplements,” she said.

At the same time, Dr. Girgis advised clinicians to be cautious about suggesting homeopathic remedies to patients.

“Homeopathy seems to be a good money maker if you sell these products. However, you are not protected from liability and can be found more liable for prescribing off-label treatments or those not [Food and Drug Administration] approved,” Dr. Girgis said. Her general message to clinicians: Stick with evidence-based medicine.

Her message to patients who might want to pursue homeopathic remedies is that just because something is “homeopathic” or natural doesn’t mean that it is safe.

“There are some [homeopathic] products that have caused liver damage or other problems,” she explained. “Also, these remedies can interact with other medications.”

The study received no outside funding. The researchers and Dr. Girgis had no financial conflicts to disclose.

Severe food insecurity was associated with metabolic syndrome and unfavorable cardiometabolic markers in Hispanic/Latino youth, researchers report.

The findings, published March 16 in Pediatrics, highlight the need to investigate interventions that address food insecurity among Hispanic/Latino youth, a segment of the U.S. population at high risk of cardiometabolic complications.

“Among Hispanic/Latino youth, no study, to our knowledge has evaluated food insecurity’s role in metabolic syndrome and metabolic syndrome–relevant cardiometabolic markers in this population,” lead author Luis E. Maldonado, PhD, of the University of North Carolina at Chapel Hill, and colleagues explained.

The researchers conducted a cross-sectional study to evaluate the associations between lower household and child food security and metabolic syndrome, as well as clinically measured cardiometabolic markers, including fasting plasma glucose, waist circumference, triglycerides, systolic and diastolic blood pressure, and high-density lipoprotein cholesterol (HDL-C).

Household food security (high, marginal, low, very low) and child food security (high, marginal, low/very low) measures were evaluated separately, and were adjusted for participant age, sex, site, parental education, and poverty-income ratio.

Data were obtained from the Hispanic Community Children’s Health Study/Study of Latino Youth, a study of offspring of adults enrolled in the Hispanic Community Health Survey/Study of Latinos.
 

Results

The study cohort included 1,325 Hispanic/Latino youth aged 8-16 years. For both household food security and child food security, youth in the lowest food security category had significantly lower HDL-C compared with youth with high food security (household food security, –3.17; 95% confidence interval, –5.65 to –0.70; child food security, –1.81; 95% CI, –3.54 to –0.09).

In addition, low/very low compared with high child food security was associated with higher triglycerides (beta, 8.68; 95% CI, 1.75-15.61), higher fasting plasma glucose (beta, 1.37; 95% CI, 0.08-2.65), and metabolic syndrome composite variable expected log counts (beta, 2.12; 95% CI, 0.02-0.45).

Furthermore, the researchers found statistically significant interactions between each of the two food security measures and receipt of any food assistance in the previous year in models of triglycerides (P for interactions: household food security, .03 and child food security, .005) and HDL-C (P for interactions: household food security, .01 and child food security, .04).

After evaluating the effect of parental place of birth, they found a statistically significant association for triglycerides only (P for interactions: household food security, .05 and child food security, .008).

“Our study is among the first to document adverse associations between household and child food security measures with a metabolic syndrome score variable and several metabolic syndrome–relevant cardiometabolic markers among US Hispanic/Latino youth,” the researchers wrote.

The researchers acknowledged that the cross-sectional nature of the study was a key limitation; thus, causality could not be inferred.

“In the future, we plan to conduct more qualitative work to better understand how Hispanic/Latino families respond to food insecurity, which may identify the factors that shape their response,” study author Sandra S. Albrecht, PhD, of Columbia University, New York, NY, said in an interview.
 

Recommendations for pediatricians

Food insecurity researcher Yankun Wang, PhD candidate at Indiana University, Bloomington, commented: “I would recommend pediatricians pay more attention to children from low-income households since they are more likely to have mental and physical health issues due to food insecurity.

“It can be very helpful if pediatricians could help families obtain SNAP benefits, enroll youth in the school breakfast and lunch programs, and promote nutrition education in schools,” Mr. Wang added.

This study was supported by grant funding from the National Heart, Lung, and Blood Institute. The authors reported no relevant disclosures.

Severe food insecurity was associated with metabolic syndrome and unfavorable cardiometabolic markers in Hispanic/Latino youth, researchers report.

The findings, published March 16 in Pediatrics, highlight the need to investigate interventions that address food insecurity among Hispanic/Latino youth, a segment of the U.S. population at high risk of cardiometabolic complications.

“Among Hispanic/Latino youth, no study, to our knowledge has evaluated food insecurity’s role in metabolic syndrome and metabolic syndrome–relevant cardiometabolic markers in this population,” lead author Luis E. Maldonado, PhD, of the University of North Carolina at Chapel Hill, and colleagues explained.

The researchers conducted a cross-sectional study to evaluate the associations between lower household and child food security and metabolic syndrome, as well as clinically measured cardiometabolic markers, including fasting plasma glucose, waist circumference, triglycerides, systolic and diastolic blood pressure, and high-density lipoprotein cholesterol (HDL-C).

Household food security (high, marginal, low, very low) and child food security (high, marginal, low/very low) measures were evaluated separately, and were adjusted for participant age, sex, site, parental education, and poverty-income ratio.

Data were obtained from the Hispanic Community Children’s Health Study/Study of Latino Youth, a study of offspring of adults enrolled in the Hispanic Community Health Survey/Study of Latinos.
 

Results

The study cohort included 1,325 Hispanic/Latino youth aged 8-16 years. For both household food security and child food security, youth in the lowest food security category had significantly lower HDL-C compared with youth with high food security (household food security, –3.17; 95% confidence interval, –5.65 to –0.70; child food security, –1.81; 95% CI, –3.54 to –0.09).

In addition, low/very low compared with high child food security was associated with higher triglycerides (beta, 8.68; 95% CI, 1.75-15.61), higher fasting plasma glucose (beta, 1.37; 95% CI, 0.08-2.65), and metabolic syndrome composite variable expected log counts (beta, 2.12; 95% CI, 0.02-0.45).

Furthermore, the researchers found statistically significant interactions between each of the two food security measures and receipt of any food assistance in the previous year in models of triglycerides (P for interactions: household food security, .03 and child food security, .005) and HDL-C (P for interactions: household food security, .01 and child food security, .04).

After evaluating the effect of parental place of birth, they found a statistically significant association for triglycerides only (P for interactions: household food security, .05 and child food security, .008).

“Our study is among the first to document adverse associations between household and child food security measures with a metabolic syndrome score variable and several metabolic syndrome–relevant cardiometabolic markers among US Hispanic/Latino youth,” the researchers wrote.

The researchers acknowledged that the cross-sectional nature of the study was a key limitation; thus, causality could not be inferred.

“In the future, we plan to conduct more qualitative work to better understand how Hispanic/Latino families respond to food insecurity, which may identify the factors that shape their response,” study author Sandra S. Albrecht, PhD, of Columbia University, New York, NY, said in an interview.
 

Recommendations for pediatricians

Food insecurity researcher Yankun Wang, PhD candidate at Indiana University, Bloomington, commented: “I would recommend pediatricians pay more attention to children from low-income households since they are more likely to have mental and physical health issues due to food insecurity.

“It can be very helpful if pediatricians could help families obtain SNAP benefits, enroll youth in the school breakfast and lunch programs, and promote nutrition education in schools,” Mr. Wang added.

This study was supported by grant funding from the National Heart, Lung, and Blood Institute. The authors reported no relevant disclosures.

Severe food insecurity was associated with metabolic syndrome and unfavorable cardiometabolic markers in Hispanic/Latino youth, researchers report.

The findings, published March 16 in Pediatrics, highlight the need to investigate interventions that address food insecurity among Hispanic/Latino youth, a segment of the U.S. population at high risk of cardiometabolic complications.

“Among Hispanic/Latino youth, no study, to our knowledge has evaluated food insecurity’s role in metabolic syndrome and metabolic syndrome–relevant cardiometabolic markers in this population,” lead author Luis E. Maldonado, PhD, of the University of North Carolina at Chapel Hill, and colleagues explained.

The researchers conducted a cross-sectional study to evaluate the associations between lower household and child food security and metabolic syndrome, as well as clinically measured cardiometabolic markers, including fasting plasma glucose, waist circumference, triglycerides, systolic and diastolic blood pressure, and high-density lipoprotein cholesterol (HDL-C).

Household food security (high, marginal, low, very low) and child food security (high, marginal, low/very low) measures were evaluated separately, and were adjusted for participant age, sex, site, parental education, and poverty-income ratio.

Data were obtained from the Hispanic Community Children’s Health Study/Study of Latino Youth, a study of offspring of adults enrolled in the Hispanic Community Health Survey/Study of Latinos.
 

Results

The study cohort included 1,325 Hispanic/Latino youth aged 8-16 years. For both household food security and child food security, youth in the lowest food security category had significantly lower HDL-C compared with youth with high food security (household food security, –3.17; 95% confidence interval, –5.65 to –0.70; child food security, –1.81; 95% CI, –3.54 to –0.09).

In addition, low/very low compared with high child food security was associated with higher triglycerides (beta, 8.68; 95% CI, 1.75-15.61), higher fasting plasma glucose (beta, 1.37; 95% CI, 0.08-2.65), and metabolic syndrome composite variable expected log counts (beta, 2.12; 95% CI, 0.02-0.45).

Furthermore, the researchers found statistically significant interactions between each of the two food security measures and receipt of any food assistance in the previous year in models of triglycerides (P for interactions: household food security, .03 and child food security, .005) and HDL-C (P for interactions: household food security, .01 and child food security, .04).

After evaluating the effect of parental place of birth, they found a statistically significant association for triglycerides only (P for interactions: household food security, .05 and child food security, .008).

“Our study is among the first to document adverse associations between household and child food security measures with a metabolic syndrome score variable and several metabolic syndrome–relevant cardiometabolic markers among US Hispanic/Latino youth,” the researchers wrote.

The researchers acknowledged that the cross-sectional nature of the study was a key limitation; thus, causality could not be inferred.

“In the future, we plan to conduct more qualitative work to better understand how Hispanic/Latino families respond to food insecurity, which may identify the factors that shape their response,” study author Sandra S. Albrecht, PhD, of Columbia University, New York, NY, said in an interview.
 

Recommendations for pediatricians

Food insecurity researcher Yankun Wang, PhD candidate at Indiana University, Bloomington, commented: “I would recommend pediatricians pay more attention to children from low-income households since they are more likely to have mental and physical health issues due to food insecurity.

“It can be very helpful if pediatricians could help families obtain SNAP benefits, enroll youth in the school breakfast and lunch programs, and promote nutrition education in schools,” Mr. Wang added.

This study was supported by grant funding from the National Heart, Lung, and Blood Institute. The authors reported no relevant disclosures.

The American Academy of Neurology (AAN) has released new expert guidance on palliative care for patients with stroke, dementia, Parkinson’s disease, and other neurologic disorders.

Palliative care includes much more than hospice services, lead author of the new position statement Lynne P. Taylor, MD, University of Washington, Seattle, and a fellow of the AAN, said in a press release.

“Neurologists provide palliative care to people living with life-altering neurologic illnesses not just at the end of life but throughout the course of a disease, improving their lives with symptom control,” Dr. Taylor added.

The position paper, developed by a joint committee of the AAN, American Neurological Association, and Child Neurology Society, was published online March 8 in Neurology.
 

Guidance across the lifespan

The new paper, an update of previous position statements, includes palliative care guidance for different neurologic disorders across the lifespan. For example, neuropalliative care for neonates deserves “extra consideration,” because one-third of pediatric deaths occur during the neonatal period, most often in the neonatal intensive care unit, and after withdrawal of life-sustaining interventions, the authors note.

For older children, neuropalliative care consultation benefits families trying to maximize the quality of the remainder of their child’s life. Decisionmaking must consider the child’s cognitive abilities, the diagnosis, the perceived level of suffering, parental values, and the family’s understanding of the prognosis, the authors note.

They note that discussions about prognosis are often difficult but critical. Previous research “supports that patients desire prognostic information even when prognosis is uncertain and appreciate when their physicians disclose the presence of that uncertainty,” the authors note.

Also important is engaging in shared decisionmaking with patients and families. “This approach requires the physician to elicit a patient’s goals, make recommendations based on whether medical treatments are likely to achieve those goals, and work with patients and families to finalize a treatment plan,” according to the new guidance.
 

Ethical considerations

When treatments are physiologically futile, clinicians need to explain why interventions that may cause harm and have no benefit are not offered.

The authors cite cardiopulmonary resuscitation in the setting of cardiac arrest from irreversible herniation as an example of futility in the context of neurologic disease.

When life-prolonging care is no longer an option, clinicians have an obligation to shift the focus of care to preserving quality of life and comfort as much as possible, they add.

Hospices, which provide comfort-focused medical care as well as psychosocial and spiritual support, are reserved for patients believed to be in the last 6 months of their life if their disease follows the expected course.

The investigators also broached ethical considerations for individual neurologic conditions. Concerns for disorders of consciousness include misdiagnosis or inaccurate prognostication, and serial examinations are needed to re-evaluate levels of cognition, psychological state, decisionmaking capacity, and disease trajectory.

In patients with locked-in syndrome, a state of irreversible paralysis, often with respiratory and vocal paralysis, consciousness may range from a chronic minimally conscious state to intact cognition.

Without careful examination, patients with preserved consciousness may be mistaken as having a disorder of consciousness and risk their decisional capacity being ignored, the researchers note.

These patients may need assistance from speech pathologists to identify techniques to enhance communication, such as careful “yes/no” questioning, communication boards, or advanced eye-gaze technology, they add.
 

Stroke, dementia, Parkinson’s guidance

For stroke, the guidance suggests neurologists encourage patients with retained decisionmaking capacity to complete advance care planning given the risk of recurrent stroke and loss of capacity in the future.

For dementia, a proper and timely diagnosis can help patients and their families prepare for the consequences of cognitive dysfunction and loss of autonomy while respecting their identified values, the authors write.

They note that for Parkinson’s disease, which is marked by slow functional and cognitive decline, neurologists must aim to anticipate and treat symptoms, address psychosocial and spiritual distress and caregiver burden, and engage patients and families in advance care planning before onset of cognitive impairment.

For patients with amyotrophic lateral sclerosis (ALS) and related disorders, clinicians should aim to document goals and treatment preferences prior to extreme weakness and aphonia.

It is also important to anticipate patient preferences for future disability-specific decisions, such as those related to feeding tubes and mechanical ventilation, and to identify the patient’s minimal acceptable outcome from these life-sustaining interventions.

On the topic of withdrawal of treatment, the paper notes that competent patients have the right to refuse life-prolonging therapies, including artificial nutrition, hydration, mechanical ventilation, and antibiotics. If physicians have a moral objection to removing life-support systems, they are obligated to transfer the care of the patient to another physician, the authors add.

Once a decision is made to forgo life-sustaining treatment, physicians should minimize subsequent suffering. The investigators note most symptoms at the end of life can be managed without sedation.

In broaching the “gap” in neurology training programs, the statement referred to a survey of 49 neurology residency programs. Results showed that 42% of respondents reported being dissatisfied with their palliative care education.
 

Well-timed update

Kate T. Brizzi, MD, a Boston neurologist with experience in hospice and palliative care, said the updated position statement is “well-timed” as neuropalliative care has evolved dramatically over the last decade.

“In the last several years, I’ve witnessed a significant increase in trainee interest in the field, and there is growing recognition of how a palliative care approach can improve patient care and hopefully outcomes,” said Dr. Brizzi.

She praised the authors for doing “an excellent job” in highlighting the ethical challenges facing the neurology provider, particularly as it relates to prognostication in an uncertain setting.

Dr. Brizzi noted communication tools that help facilitate discussions around shared decisionmaking “have enhanced our ability to meet the palliative care needs of our patients and can be incorporated by any provider.”

However, she added that the paper only briefly comments on the role of the neurologist in “lawful physician-hastened death.”

“I anticipate that this will be an area of further discussion in the neurology and palliative care community in the future, as requests for hastened death are frequently encountered from patients with serious neurologic illness,” she said.

Dr. Brizzi also noted the importance of understanding the reasons behind the request – and addressing patient worries related to end-of-life care, which can frequently help alleviate distress.

There was no targeted funding for this paper. Coauthor Salvador Cruz-Flores, MD, department of neurology, Texas Tech University Center, El Paso, reported participation on member adjudication committees for clinical trials for Novo Nordisk, Sunovion, and Galapagos. The remaining authors have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

The American Academy of Neurology (AAN) has released new expert guidance on palliative care for patients with stroke, dementia, Parkinson’s disease, and other neurologic disorders.

Palliative care includes much more than hospice services, lead author of the new position statement Lynne P. Taylor, MD, University of Washington, Seattle, and a fellow of the AAN, said in a press release.

“Neurologists provide palliative care to people living with life-altering neurologic illnesses not just at the end of life but throughout the course of a disease, improving their lives with symptom control,” Dr. Taylor added.

The position paper, developed by a joint committee of the AAN, American Neurological Association, and Child Neurology Society, was published online March 8 in Neurology.
 

Guidance across the lifespan

The new paper, an update of previous position statements, includes palliative care guidance for different neurologic disorders across the lifespan. For example, neuropalliative care for neonates deserves “extra consideration,” because one-third of pediatric deaths occur during the neonatal period, most often in the neonatal intensive care unit, and after withdrawal of life-sustaining interventions, the authors note.

For older children, neuropalliative care consultation benefits families trying to maximize the quality of the remainder of their child’s life. Decisionmaking must consider the child’s cognitive abilities, the diagnosis, the perceived level of suffering, parental values, and the family’s understanding of the prognosis, the authors note.

They note that discussions about prognosis are often difficult but critical. Previous research “supports that patients desire prognostic information even when prognosis is uncertain and appreciate when their physicians disclose the presence of that uncertainty,” the authors note.

Also important is engaging in shared decisionmaking with patients and families. “This approach requires the physician to elicit a patient’s goals, make recommendations based on whether medical treatments are likely to achieve those goals, and work with patients and families to finalize a treatment plan,” according to the new guidance.
 

Ethical considerations

When treatments are physiologically futile, clinicians need to explain why interventions that may cause harm and have no benefit are not offered.

The authors cite cardiopulmonary resuscitation in the setting of cardiac arrest from irreversible herniation as an example of futility in the context of neurologic disease.

When life-prolonging care is no longer an option, clinicians have an obligation to shift the focus of care to preserving quality of life and comfort as much as possible, they add.

Hospices, which provide comfort-focused medical care as well as psychosocial and spiritual support, are reserved for patients believed to be in the last 6 months of their life if their disease follows the expected course.

The investigators also broached ethical considerations for individual neurologic conditions. Concerns for disorders of consciousness include misdiagnosis or inaccurate prognostication, and serial examinations are needed to re-evaluate levels of cognition, psychological state, decisionmaking capacity, and disease trajectory.

In patients with locked-in syndrome, a state of irreversible paralysis, often with respiratory and vocal paralysis, consciousness may range from a chronic minimally conscious state to intact cognition.

Without careful examination, patients with preserved consciousness may be mistaken as having a disorder of consciousness and risk their decisional capacity being ignored, the researchers note.

These patients may need assistance from speech pathologists to identify techniques to enhance communication, such as careful “yes/no” questioning, communication boards, or advanced eye-gaze technology, they add.
 

Stroke, dementia, Parkinson’s guidance

For stroke, the guidance suggests neurologists encourage patients with retained decisionmaking capacity to complete advance care planning given the risk of recurrent stroke and loss of capacity in the future.

For dementia, a proper and timely diagnosis can help patients and their families prepare for the consequences of cognitive dysfunction and loss of autonomy while respecting their identified values, the authors write.

They note that for Parkinson’s disease, which is marked by slow functional and cognitive decline, neurologists must aim to anticipate and treat symptoms, address psychosocial and spiritual distress and caregiver burden, and engage patients and families in advance care planning before onset of cognitive impairment.

For patients with amyotrophic lateral sclerosis (ALS) and related disorders, clinicians should aim to document goals and treatment preferences prior to extreme weakness and aphonia.

It is also important to anticipate patient preferences for future disability-specific decisions, such as those related to feeding tubes and mechanical ventilation, and to identify the patient’s minimal acceptable outcome from these life-sustaining interventions.

On the topic of withdrawal of treatment, the paper notes that competent patients have the right to refuse life-prolonging therapies, including artificial nutrition, hydration, mechanical ventilation, and antibiotics. If physicians have a moral objection to removing life-support systems, they are obligated to transfer the care of the patient to another physician, the authors add.

Once a decision is made to forgo life-sustaining treatment, physicians should minimize subsequent suffering. The investigators note most symptoms at the end of life can be managed without sedation.

In broaching the “gap” in neurology training programs, the statement referred to a survey of 49 neurology residency programs. Results showed that 42% of respondents reported being dissatisfied with their palliative care education.
 

Well-timed update

Kate T. Brizzi, MD, a Boston neurologist with experience in hospice and palliative care, said the updated position statement is “well-timed” as neuropalliative care has evolved dramatically over the last decade.

“In the last several years, I’ve witnessed a significant increase in trainee interest in the field, and there is growing recognition of how a palliative care approach can improve patient care and hopefully outcomes,” said Dr. Brizzi.

She praised the authors for doing “an excellent job” in highlighting the ethical challenges facing the neurology provider, particularly as it relates to prognostication in an uncertain setting.

Dr. Brizzi noted communication tools that help facilitate discussions around shared decisionmaking “have enhanced our ability to meet the palliative care needs of our patients and can be incorporated by any provider.”

However, she added that the paper only briefly comments on the role of the neurologist in “lawful physician-hastened death.”

“I anticipate that this will be an area of further discussion in the neurology and palliative care community in the future, as requests for hastened death are frequently encountered from patients with serious neurologic illness,” she said.

Dr. Brizzi also noted the importance of understanding the reasons behind the request – and addressing patient worries related to end-of-life care, which can frequently help alleviate distress.

There was no targeted funding for this paper. Coauthor Salvador Cruz-Flores, MD, department of neurology, Texas Tech University Center, El Paso, reported participation on member adjudication committees for clinical trials for Novo Nordisk, Sunovion, and Galapagos. The remaining authors have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

The American Academy of Neurology (AAN) has released new expert guidance on palliative care for patients with stroke, dementia, Parkinson’s disease, and other neurologic disorders.

Palliative care includes much more than hospice services, lead author of the new position statement Lynne P. Taylor, MD, University of Washington, Seattle, and a fellow of the AAN, said in a press release.

“Neurologists provide palliative care to people living with life-altering neurologic illnesses not just at the end of life but throughout the course of a disease, improving their lives with symptom control,” Dr. Taylor added.

The position paper, developed by a joint committee of the AAN, American Neurological Association, and Child Neurology Society, was published online March 8 in Neurology.
 

Guidance across the lifespan

The new paper, an update of previous position statements, includes palliative care guidance for different neurologic disorders across the lifespan. For example, neuropalliative care for neonates deserves “extra consideration,” because one-third of pediatric deaths occur during the neonatal period, most often in the neonatal intensive care unit, and after withdrawal of life-sustaining interventions, the authors note.

For older children, neuropalliative care consultation benefits families trying to maximize the quality of the remainder of their child’s life. Decisionmaking must consider the child’s cognitive abilities, the diagnosis, the perceived level of suffering, parental values, and the family’s understanding of the prognosis, the authors note.

They note that discussions about prognosis are often difficult but critical. Previous research “supports that patients desire prognostic information even when prognosis is uncertain and appreciate when their physicians disclose the presence of that uncertainty,” the authors note.

Also important is engaging in shared decisionmaking with patients and families. “This approach requires the physician to elicit a patient’s goals, make recommendations based on whether medical treatments are likely to achieve those goals, and work with patients and families to finalize a treatment plan,” according to the new guidance.
 

Ethical considerations

When treatments are physiologically futile, clinicians need to explain why interventions that may cause harm and have no benefit are not offered.

The authors cite cardiopulmonary resuscitation in the setting of cardiac arrest from irreversible herniation as an example of futility in the context of neurologic disease.

When life-prolonging care is no longer an option, clinicians have an obligation to shift the focus of care to preserving quality of life and comfort as much as possible, they add.

Hospices, which provide comfort-focused medical care as well as psychosocial and spiritual support, are reserved for patients believed to be in the last 6 months of their life if their disease follows the expected course.

The investigators also broached ethical considerations for individual neurologic conditions. Concerns for disorders of consciousness include misdiagnosis or inaccurate prognostication, and serial examinations are needed to re-evaluate levels of cognition, psychological state, decisionmaking capacity, and disease trajectory.

In patients with locked-in syndrome, a state of irreversible paralysis, often with respiratory and vocal paralysis, consciousness may range from a chronic minimally conscious state to intact cognition.

Without careful examination, patients with preserved consciousness may be mistaken as having a disorder of consciousness and risk their decisional capacity being ignored, the researchers note.

These patients may need assistance from speech pathologists to identify techniques to enhance communication, such as careful “yes/no” questioning, communication boards, or advanced eye-gaze technology, they add.
 

Stroke, dementia, Parkinson’s guidance

For stroke, the guidance suggests neurologists encourage patients with retained decisionmaking capacity to complete advance care planning given the risk of recurrent stroke and loss of capacity in the future.

For dementia, a proper and timely diagnosis can help patients and their families prepare for the consequences of cognitive dysfunction and loss of autonomy while respecting their identified values, the authors write.

They note that for Parkinson’s disease, which is marked by slow functional and cognitive decline, neurologists must aim to anticipate and treat symptoms, address psychosocial and spiritual distress and caregiver burden, and engage patients and families in advance care planning before onset of cognitive impairment.

For patients with amyotrophic lateral sclerosis (ALS) and related disorders, clinicians should aim to document goals and treatment preferences prior to extreme weakness and aphonia.

It is also important to anticipate patient preferences for future disability-specific decisions, such as those related to feeding tubes and mechanical ventilation, and to identify the patient’s minimal acceptable outcome from these life-sustaining interventions.

On the topic of withdrawal of treatment, the paper notes that competent patients have the right to refuse life-prolonging therapies, including artificial nutrition, hydration, mechanical ventilation, and antibiotics. If physicians have a moral objection to removing life-support systems, they are obligated to transfer the care of the patient to another physician, the authors add.

Once a decision is made to forgo life-sustaining treatment, physicians should minimize subsequent suffering. The investigators note most symptoms at the end of life can be managed without sedation.

In broaching the “gap” in neurology training programs, the statement referred to a survey of 49 neurology residency programs. Results showed that 42% of respondents reported being dissatisfied with their palliative care education.
 

Well-timed update

Kate T. Brizzi, MD, a Boston neurologist with experience in hospice and palliative care, said the updated position statement is “well-timed” as neuropalliative care has evolved dramatically over the last decade.

“In the last several years, I’ve witnessed a significant increase in trainee interest in the field, and there is growing recognition of how a palliative care approach can improve patient care and hopefully outcomes,” said Dr. Brizzi.

She praised the authors for doing “an excellent job” in highlighting the ethical challenges facing the neurology provider, particularly as it relates to prognostication in an uncertain setting.

Dr. Brizzi noted communication tools that help facilitate discussions around shared decisionmaking “have enhanced our ability to meet the palliative care needs of our patients and can be incorporated by any provider.”

However, she added that the paper only briefly comments on the role of the neurologist in “lawful physician-hastened death.”

“I anticipate that this will be an area of further discussion in the neurology and palliative care community in the future, as requests for hastened death are frequently encountered from patients with serious neurologic illness,” she said.

Dr. Brizzi also noted the importance of understanding the reasons behind the request – and addressing patient worries related to end-of-life care, which can frequently help alleviate distress.

There was no targeted funding for this paper. Coauthor Salvador Cruz-Flores, MD, department of neurology, Texas Tech University Center, El Paso, reported participation on member adjudication committees for clinical trials for Novo Nordisk, Sunovion, and Galapagos. The remaining authors have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

My previous column on practice valuation prompted a number of questions on the mechanics of selling a private practice. As usual, I cannot hope to cover this complex topic comprehensively in only 750 words, but here are the basics.

A generation ago, the sale of a medical practice was much like the sale of any other business: A retiring physician would sell his or her practice to a young doctor and the practice would continue on as before. Occasionally, that still happens, but changes in the business of medicine – most significantly the growth of managed care – have had a big impact on the way medical practices are bought and sold.

For one thing, there are far fewer solo practitioners these days, and polls indicate that most young physicians intend to continue that trend. The buyer of a medical practice today is more likely to be an institution, such as a hospital, an HMO, or a large practice group, rather than an individual.

For another, because the rules governing such sales have become so numbingly complex, the services of expert (and expensive) third parties are essential.

While these issues may complicate matters, there is still a market for the sale of medical practices. However, you must do everything possible to ensure you identify the best possible buyer and structure the best deal.

The first hurdle is the accurate valuation of your practice, which was covered in some detail in my last column. Briefly, for the protection of both parties, it is important that the appraisal be done by an experienced and neutral financial consultant, that all techniques used in the valuation be divulged and explained, and that documentation be supplied to support the conclusions reached.

Keep in mind that the valuation will not necessarily equal the purchase price; other factors may need to be considered before a final price can be agreed upon. Keep in mind, too, that there may be legal constraints on the purchase price. For example, if the buyer is a nonprofit corporation such as a hospital or HMO, by law it cannot pay in excess of fair market value for the practice – which may rule out any valuation of “good will.” In some states, the purchase of private practices by hospitals is prohibited altogether – so you might need to consider a long-term lease rather than a sale.

Once a value has been agreed upon, you must consider how the transaction will be structured. The most popular structures include purchase of assets, purchase of corporate stock, and merger.

Many buyers prefer to purchase assets, because it allows them to pick and choose only those items that have value to them. This can leave you with a bunch of “odd lot” assets to dispose of. But depending on the circumstances, an asset sale may still be to your advantage.

Sellers typically prefer to sell stock, because it allows them to sell their entire practice, which is often worth more than the sum of its parts, and often provides tax advantages.

The third option, merger, continues to grow in popularity and is a column subject in itself, and I will address it separately next month.

Tax issues must always be considered. Most private practices are corporations, and the sale of corporate stock will result in a long-term capital gain that will be taxed – currently at 15%-20%. As the saying goes, it’s not what you earn, it’s what you keep. So it may benefit you to accept a slightly lower price if the sale can be structured to provide significantly lower tax treatment. However, any gain that does not qualify as a long-term capital gain will be taxed as regular income – currently in the 32%-37% percent range – plus a Social Security tax of about 15%.

Payment in installments is a popular way to defer taxes, since they are incurred on each installment as it is paid; but such payments may be mistaken by the IRS for payments for referrals, which is illegal. And there is always the problem of making certain all payments are eventually made.

You may wish to continue working at the practice as an employee for an agreed-upon period of time, and this is often to the buyer’s advantage as well. Transitioning to new ownership in stages often maximizes the value of the business by improving patient retention, and allows patients to become accustomed to the transition. However, care must be taken, with the aid of good legal advice, to structure such an arrangement in a way that minimizes concerns of fraud and abuse.

Dr. Eastern practices dermatology and dermatologic surgery in Belleville, N.J. He is the author of numerous articles and textbook chapters, and is a longtime monthly columnist for Dermatology News. Write to him at [email protected].

My previous column on practice valuation prompted a number of questions on the mechanics of selling a private practice. As usual, I cannot hope to cover this complex topic comprehensively in only 750 words, but here are the basics.

A generation ago, the sale of a medical practice was much like the sale of any other business: A retiring physician would sell his or her practice to a young doctor and the practice would continue on as before. Occasionally, that still happens, but changes in the business of medicine – most significantly the growth of managed care – have had a big impact on the way medical practices are bought and sold.

For one thing, there are far fewer solo practitioners these days, and polls indicate that most young physicians intend to continue that trend. The buyer of a medical practice today is more likely to be an institution, such as a hospital, an HMO, or a large practice group, rather than an individual.

For another, because the rules governing such sales have become so numbingly complex, the services of expert (and expensive) third parties are essential.

While these issues may complicate matters, there is still a market for the sale of medical practices. However, you must do everything possible to ensure you identify the best possible buyer and structure the best deal.

The first hurdle is the accurate valuation of your practice, which was covered in some detail in my last column. Briefly, for the protection of both parties, it is important that the appraisal be done by an experienced and neutral financial consultant, that all techniques used in the valuation be divulged and explained, and that documentation be supplied to support the conclusions reached.

Keep in mind that the valuation will not necessarily equal the purchase price; other factors may need to be considered before a final price can be agreed upon. Keep in mind, too, that there may be legal constraints on the purchase price. For example, if the buyer is a nonprofit corporation such as a hospital or HMO, by law it cannot pay in excess of fair market value for the practice – which may rule out any valuation of “good will.” In some states, the purchase of private practices by hospitals is prohibited altogether – so you might need to consider a long-term lease rather than a sale.

Once a value has been agreed upon, you must consider how the transaction will be structured. The most popular structures include purchase of assets, purchase of corporate stock, and merger.

Many buyers prefer to purchase assets, because it allows them to pick and choose only those items that have value to them. This can leave you with a bunch of “odd lot” assets to dispose of. But depending on the circumstances, an asset sale may still be to your advantage.

Sellers typically prefer to sell stock, because it allows them to sell their entire practice, which is often worth more than the sum of its parts, and often provides tax advantages.

The third option, merger, continues to grow in popularity and is a column subject in itself, and I will address it separately next month.

Tax issues must always be considered. Most private practices are corporations, and the sale of corporate stock will result in a long-term capital gain that will be taxed – currently at 15%-20%. As the saying goes, it’s not what you earn, it’s what you keep. So it may benefit you to accept a slightly lower price if the sale can be structured to provide significantly lower tax treatment. However, any gain that does not qualify as a long-term capital gain will be taxed as regular income – currently in the 32%-37% percent range – plus a Social Security tax of about 15%.

Payment in installments is a popular way to defer taxes, since they are incurred on each installment as it is paid; but such payments may be mistaken by the IRS for payments for referrals, which is illegal. And there is always the problem of making certain all payments are eventually made.

You may wish to continue working at the practice as an employee for an agreed-upon period of time, and this is often to the buyer’s advantage as well. Transitioning to new ownership in stages often maximizes the value of the business by improving patient retention, and allows patients to become accustomed to the transition. However, care must be taken, with the aid of good legal advice, to structure such an arrangement in a way that minimizes concerns of fraud and abuse.

Dr. Eastern practices dermatology and dermatologic surgery in Belleville, N.J. He is the author of numerous articles and textbook chapters, and is a longtime monthly columnist for Dermatology News. Write to him at [email protected].

My previous column on practice valuation prompted a number of questions on the mechanics of selling a private practice. As usual, I cannot hope to cover this complex topic comprehensively in only 750 words, but here are the basics.

A generation ago, the sale of a medical practice was much like the sale of any other business: A retiring physician would sell his or her practice to a young doctor and the practice would continue on as before. Occasionally, that still happens, but changes in the business of medicine – most significantly the growth of managed care – have had a big impact on the way medical practices are bought and sold.

For one thing, there are far fewer solo practitioners these days, and polls indicate that most young physicians intend to continue that trend. The buyer of a medical practice today is more likely to be an institution, such as a hospital, an HMO, or a large practice group, rather than an individual.

For another, because the rules governing such sales have become so numbingly complex, the services of expert (and expensive) third parties are essential.

While these issues may complicate matters, there is still a market for the sale of medical practices. However, you must do everything possible to ensure you identify the best possible buyer and structure the best deal.

The first hurdle is the accurate valuation of your practice, which was covered in some detail in my last column. Briefly, for the protection of both parties, it is important that the appraisal be done by an experienced and neutral financial consultant, that all techniques used in the valuation be divulged and explained, and that documentation be supplied to support the conclusions reached.

Keep in mind that the valuation will not necessarily equal the purchase price; other factors may need to be considered before a final price can be agreed upon. Keep in mind, too, that there may be legal constraints on the purchase price. For example, if the buyer is a nonprofit corporation such as a hospital or HMO, by law it cannot pay in excess of fair market value for the practice – which may rule out any valuation of “good will.” In some states, the purchase of private practices by hospitals is prohibited altogether – so you might need to consider a long-term lease rather than a sale.

Once a value has been agreed upon, you must consider how the transaction will be structured. The most popular structures include purchase of assets, purchase of corporate stock, and merger.

Many buyers prefer to purchase assets, because it allows them to pick and choose only those items that have value to them. This can leave you with a bunch of “odd lot” assets to dispose of. But depending on the circumstances, an asset sale may still be to your advantage.

Sellers typically prefer to sell stock, because it allows them to sell their entire practice, which is often worth more than the sum of its parts, and often provides tax advantages.

The third option, merger, continues to grow in popularity and is a column subject in itself, and I will address it separately next month.

Tax issues must always be considered. Most private practices are corporations, and the sale of corporate stock will result in a long-term capital gain that will be taxed – currently at 15%-20%. As the saying goes, it’s not what you earn, it’s what you keep. So it may benefit you to accept a slightly lower price if the sale can be structured to provide significantly lower tax treatment. However, any gain that does not qualify as a long-term capital gain will be taxed as regular income – currently in the 32%-37% percent range – plus a Social Security tax of about 15%.

Payment in installments is a popular way to defer taxes, since they are incurred on each installment as it is paid; but such payments may be mistaken by the IRS for payments for referrals, which is illegal. And there is always the problem of making certain all payments are eventually made.

You may wish to continue working at the practice as an employee for an agreed-upon period of time, and this is often to the buyer’s advantage as well. Transitioning to new ownership in stages often maximizes the value of the business by improving patient retention, and allows patients to become accustomed to the transition. However, care must be taken, with the aid of good legal advice, to structure such an arrangement in a way that minimizes concerns of fraud and abuse.

Dr. Eastern practices dermatology and dermatologic surgery in Belleville, N.J. He is the author of numerous articles and textbook chapters, and is a longtime monthly columnist for Dermatology News. Write to him at [email protected].

Editor’s note: This is the second in a two-part series commemorating the 100-year anniversary of the first use of insulin in humans. Part 1 of this series examined the rivalry behind the discovery and use of insulin.

One hundred years ago, teenager Leonard Thompson was the first patient with type 1 diabetes to be successfully treated with insulin, granting him a reprieve from what was a certain death sentence at the time.

Since then, research has gathered pace. In the century since insulin’s discovery and first use, recombinant DNA technology has allowed for the engineering of the insulin molecule, providing numerous short- and long-acting analog versions. At the same time, technological leaps in automated insulin delivery and monitoring of blood glucose ensure more time with glucose in range and fewer life-threatening complications for those with type 1 diabetes fortunate enough to have access to the technology. 

In spite of these advancements, there is still scope for further evolution of disease management, with the holy grail being the transplant of stem cell–derived islet cells capable of making insulin, ideally encased in some kind of protective device so that immunosuppression is not required.

Indeed, it is not unreasonable to “hope that type 1 diabetes will be a curable disease in the next 100 years,” said Elizabeth Stephens, MD, an endocrinologist who has type 1 diabetes and practices in Portland, Ore.
 

Type 1 diabetes: The past 100 years

The epidemiology of type 1 diabetes has shifted considerably since 1922. A century ago, given that average life expectancy in the United States was around 54 years, it was pretty much the only type of diabetes that doctors encountered. “There was some type 2 diabetes about in heavier people, but the focus was on type 1 diabetes,” noted Dr. Stephens.

Originally called juvenile diabetes because it was thought to only occur in children, “now 50% of people are diagnosed with type 1 diabetes ... over [the age of] 20,” explained Dr. Stephens.

In the United States, around 1.4 million adults 20 years and older, and 187,000 children younger than 20, have the disease, according to data from the National Diabetes Statistics Report 2020 by the Centers for Disease Control and Prevention. This total represents an increase of nearly 30% from 2017.

Over the years, theories as to the cause, or trigger, for type 1 diabetes “have included cow’s milk and [viral] infections,” said Dr. Stephens. “Most likely, there’s a genetic predisposition and some type of exposure, which creates the perfect storm to trigger disease.”

There are hints that COVID-19 might be precipitating type 1 diabetes in some people. Recently, the CDC found SARS-CoV-2 infection was associated with an increased risk for diabetes (all types) among youth, but not other acute respiratory infections. And two further studies from different parts of the world have recently identified an increase in the incidence of type 1 diabetes in children since the COVID-19 pandemic began, but the reasons remain unclear.

The global CoviDiab registry has also been established to collect data on patients with COVID-19–related diabetes.

The million-dollar question: Is COVID-19 itself is propagating type 1 diabetes or unmasking a predisposition to the disease sooner? The latter might be associated with a lower type 1 diabetes rate in the future, said Partha Kar, MBBS, OBE, national specialty advisor, diabetes, for National Health Service England.

“Right now, we don’t know the answer. Whichever way you look at it, it is likely there will be a rise in cases, and in countries where insulin is not freely available, healthcare systems need to have supply ready because insulin is lifesaving in type 1 diabetes,” Dr. Kar emphasized.
 

CGMs and automated insulin delivery: A ‘godsend’

A huge change has also been seen, most notably in the past 15 to 20 years, in the technological advancements that can help those with type 1 diabetes live an easier life.

Continuous glucose monitors (CGMs) and automated ways of delivering insulin, such as smart pens and insulin pumps, have made the daily life of a person with type 1 diabetes in the Western world considerably more comfortable.

CGMs provide a constant stream of data to an app, often wirelessly in sync with the insulin pump. However, on a global level, they are only available to a lucky few.

In England, pending National Institute for Health and Care Excellence) approval, any CGM should be available to all eligible patients with type 1 diabetes within the NHS from April 2022, Dr. Kar pointed out. In the United States, CGMs are often unaffordable and access is mostly dependent on a person’s health insurance.

Kersten Hall, PhD, a scientist and U.K.-based medical historian who recently wrote a book, “Insulin, the Crooked Timber” (Oxford, England: Oxford University Press, 2022) uncovering the lesser-known story behind the discovery of insulin, was diagnosed with adult-onset type 1 diabetes at the age of 41. Dr. Hall had always found the finger-prick blood glucose test to be a chore but now has a CGM. 

“It’s a total game changer for me: a godsend. I can’t sing its praises enough,” he said. “All it involves is the swipe of the phone and this provides a reading which tells me if my glucose is too low, so I eat something, or too high, so I might [go for] a run.”
 

Brewing insulin at scale

As described by Dr. Hall in his book, the journey from treating Mr. Thompson in 1922 to treating the masses began when biochemist James Collip, MD, PhD, discovered a means of purifying the animal pancreas extracts used to treat the teenager.

But production at scale presented a further challenge. This was overcome in 1924 when Eli Lilly drew on a technique used in the beer brewing process – where pH guides bitterness – to purify and manufacture large amounts of insulin.

By 1936, a range of slower-acting cattle and pig-derived insulins, the first produced by Novo Nordisk Pharmaceuticals, were developed.

However, it took 8,000 lb (approximately 3,600 kg) of pancreas glands from 23,500 animals to make 1 lb (0.5 kg) of insulin, so a more efficient process was badly needed.

Dr. Hall, who is a molecular biologist as well as an author, explains that the use of recombinant DNA technology to produce human insulin, as done by Genentech in the late 70s, was a key development in the story of modern insulin products. Genentech then provided synthetic human insulin for Eli Lilly to conduct clinical trials.

Human insulin most closely resembles porcine insulin structure and function, differing by only one amino acid, while human insulin differs from bovine insulin by three amino acid residues. This synthetic human insulin eliminated the allergies that the animal-derived products sometimes caused.

In the early 1980s, Eli Lilly produced Humulin, the first biosynthetic (made in Escherichia coli, hence the term, “bio”) human insulin.

This technology eventually “allowed for the alteration of specific amino acids in the sequence of the insulin protein to make insulin analogs [synthetic versions grown in E. coli and genetically altered for various properties] that act faster, or more slowly, than normal human insulin. By using the slow- and fast-acting insulins in combination, a patient can control their blood sugar levels with a much greater degree of finesse and precision,” Dr. Hall explained.

Today, a whole range of insulins are available, including ultra–rapid-acting, short-acting, intermediate-acting, long-acting, ultra–long-acting, and even inhaled insulin, although the latter is expensive, has been associated with side effects, and is less commonly used, according to Dr. Stephens.

Oral insulin formulations are even in the early stages of development, with candidate drugs by Generex and from the Oralis project.

“With insulin therapy, we try to reproduce the normal physiology of the healthy body and pancreas,” Dr. Stephens explained.

Insulin analogs are only made by three companies (Eli Lilly, Novo Nordisk, and Sanofi), and they are generally much more expensive than nonanalog human insulin. In the United Kingdom through the NHS, they cost twice as much.

In the United States today, one of the biggest barriers to proper care of type 1 diabetes is the cost of insulin, which can limit access. With the market controlled by these three large companies, the average cost of a unit of insulin in the United States, according to RAND research, was $98.17 in January 2021, compared with $7.52 in the United Kingdom and $12.00 in Canada. 

Several U.S. states have enacted legislation capping insulin copayments to at, or under, $100 a month. But the federal Build Back Better Framework Act – which would cap copayments for insulin at $35 – currently hangs in the balance.

Alongside these moves, in 2020 the Food and Drug Administration approved the first interchangeable biosimilar insulin for type 1 diabetes (and insulin-dependent type 2 diabetes) in children and adults, called Semglee (Mylan Pharmaceuticals). 

Biosimilars (essentially generic versions of branded insulins) are expected to be less expensive than branded analogs, but the indications so far are that they will only be around 20% cheaper.

“I totally fail to understand how the richest country in the world still has a debate about price caps, and we are looking at biosimilar markets to change the debate. This makes no sense to me at all,” stressed Dr. Kar. “For lifesaving drugs, they should be funded by the state.”

Insulin also remains unaffordable for many in numerous low- and middle-income countries, where most patients pay out-of-pocket for medicines. Globally, there are estimated to be around 30 million people who need insulin but cannot afford it.

How near to a cure in the coming decades?

Looking ahead to the coming years, if not the next 100, Dr. Stephens highlighted two important aspects of care.

First, the use of a CGM device in combination with an insulin pump (also known as a closed-loop system or artificial pancreas), where the CGM effectively tells the insulin pump how much insulin to automatically dispense, should revolutionize care.

A number of such closed-loop systems have recently been approved in both the United States, including systems from Medtronic and Omnipod, and Europe.

“I wear one of these and it’s been a life changer for me, but it doesn’t suit everyone because the technology can be cumbersome, but with time, hopefully things will become smaller and more accurate in insulin delivery,” Dr. Stephens added.

The second advance of interest is the development and transplantation of cells that produce insulin.

Dr. Stephens explained that someone living with type 1 diabetes has a lot to think about, not least, doing the math related to insulin requirement. “If we just had cells from a pancreas that could be transplanted and would do that for us, then it would be a total game changer.”

To date, Vertex Pharmaceuticals has successfully treated one patient – who had lived with type 1 diabetes for about 40 years and had recurrent episodes of severe hypoglycemia – with an infusion of stem cell–derived differentiated islet cells into his liver. The procedure resulted in near reversal of type 1 diabetes, with his insulin dose reduced from 34 to 3 units, and his hemoglobin A1c falling from 8.6% to 7.2%.

And although the patient, Brian Shelton, still needs to take immunosuppressive agents to prevent rejection of the stem cell–derived islets, “it’s a whole new life,” he recently told the New York Times.  

Another company called ViaCyte is also working on a similar approach.

Whether this is a cure for type 1 diabetes is still debatable, said Anne Peters, MD, of the University of Southern California, Los Angeles. “Is it true? In a word, no. But we are part of the way there, which is much closer than we were 6 months ago.”

There are also ongoing clinical trials of therapeutic interventions to prevent or delay the trajectory from presymptomatic to clinical type 1 diabetes. The most advanced is the anti-CD3 monoclonal antibody teplizumab (Tzield, Provention Bio), which was rejected by the FDA in July 2021, but has since been refiled. The company expects to hear from the agency by the end of March 2022 as to whether the resubmission has been accepted.
 

Diabetes specialist nurses/educators keep it human

Dr. Hall said he concurs with the late eminent U.K. diabetes specialist Robert Tattersall’s observation on what he considers one of the most important advances in the management and treatment of type 1 diabetes: the human touch.

Referring to Dr. Tattersall’s book, “Diabetes: A Biography,” Dr. Hall quoted: “If asked what innovation had made the most difference to their lives in the 1980s, patients with type 1 diabetes in England would unhesitatingly have chosen not human insulin, but the spread of diabetes specialist nurses ... these people (mainly women) did more in the last two decades of the 20th century to improve the standard of diabetes care than any other innovation or drug.”

In the United States, diabetes specialist nurses were called diabetes educators until recently, when the name changed to certified diabetes care and education specialist.

“Above all, they have humanized the service and given the patient a say in the otherwise unequal relationship with all-powerful doctors,” concluded Dr. Hall, again quoting Dr. Tattersall.

A version of this article first appeared on Medscape.com.

Editor’s note: This is the second in a two-part series commemorating the 100-year anniversary of the first use of insulin in humans. Part 1 of this series examined the rivalry behind the discovery and use of insulin.

One hundred years ago, teenager Leonard Thompson was the first patient with type 1 diabetes to be successfully treated with insulin, granting him a reprieve from what was a certain death sentence at the time.

Since then, research has gathered pace. In the century since insulin’s discovery and first use, recombinant DNA technology has allowed for the engineering of the insulin molecule, providing numerous short- and long-acting analog versions. At the same time, technological leaps in automated insulin delivery and monitoring of blood glucose ensure more time with glucose in range and fewer life-threatening complications for those with type 1 diabetes fortunate enough to have access to the technology. 

In spite of these advancements, there is still scope for further evolution of disease management, with the holy grail being the transplant of stem cell–derived islet cells capable of making insulin, ideally encased in some kind of protective device so that immunosuppression is not required.

Indeed, it is not unreasonable to “hope that type 1 diabetes will be a curable disease in the next 100 years,” said Elizabeth Stephens, MD, an endocrinologist who has type 1 diabetes and practices in Portland, Ore.
 

Type 1 diabetes: The past 100 years

The epidemiology of type 1 diabetes has shifted considerably since 1922. A century ago, given that average life expectancy in the United States was around 54 years, it was pretty much the only type of diabetes that doctors encountered. “There was some type 2 diabetes about in heavier people, but the focus was on type 1 diabetes,” noted Dr. Stephens.

Originally called juvenile diabetes because it was thought to only occur in children, “now 50% of people are diagnosed with type 1 diabetes ... over [the age of] 20,” explained Dr. Stephens.

In the United States, around 1.4 million adults 20 years and older, and 187,000 children younger than 20, have the disease, according to data from the National Diabetes Statistics Report 2020 by the Centers for Disease Control and Prevention. This total represents an increase of nearly 30% from 2017.

Over the years, theories as to the cause, or trigger, for type 1 diabetes “have included cow’s milk and [viral] infections,” said Dr. Stephens. “Most likely, there’s a genetic predisposition and some type of exposure, which creates the perfect storm to trigger disease.”

There are hints that COVID-19 might be precipitating type 1 diabetes in some people. Recently, the CDC found SARS-CoV-2 infection was associated with an increased risk for diabetes (all types) among youth, but not other acute respiratory infections. And two further studies from different parts of the world have recently identified an increase in the incidence of type 1 diabetes in children since the COVID-19 pandemic began, but the reasons remain unclear.

The global CoviDiab registry has also been established to collect data on patients with COVID-19–related diabetes.

The million-dollar question: Is COVID-19 itself is propagating type 1 diabetes or unmasking a predisposition to the disease sooner? The latter might be associated with a lower type 1 diabetes rate in the future, said Partha Kar, MBBS, OBE, national specialty advisor, diabetes, for National Health Service England.

“Right now, we don’t know the answer. Whichever way you look at it, it is likely there will be a rise in cases, and in countries where insulin is not freely available, healthcare systems need to have supply ready because insulin is lifesaving in type 1 diabetes,” Dr. Kar emphasized.
 

CGMs and automated insulin delivery: A ‘godsend’

A huge change has also been seen, most notably in the past 15 to 20 years, in the technological advancements that can help those with type 1 diabetes live an easier life.

Continuous glucose monitors (CGMs) and automated ways of delivering insulin, such as smart pens and insulin pumps, have made the daily life of a person with type 1 diabetes in the Western world considerably more comfortable.

CGMs provide a constant stream of data to an app, often wirelessly in sync with the insulin pump. However, on a global level, they are only available to a lucky few.

In England, pending National Institute for Health and Care Excellence) approval, any CGM should be available to all eligible patients with type 1 diabetes within the NHS from April 2022, Dr. Kar pointed out. In the United States, CGMs are often unaffordable and access is mostly dependent on a person’s health insurance.

Kersten Hall, PhD, a scientist and U.K.-based medical historian who recently wrote a book, “Insulin, the Crooked Timber” (Oxford, England: Oxford University Press, 2022) uncovering the lesser-known story behind the discovery of insulin, was diagnosed with adult-onset type 1 diabetes at the age of 41. Dr. Hall had always found the finger-prick blood glucose test to be a chore but now has a CGM. 

“It’s a total game changer for me: a godsend. I can’t sing its praises enough,” he said. “All it involves is the swipe of the phone and this provides a reading which tells me if my glucose is too low, so I eat something, or too high, so I might [go for] a run.”
 

Brewing insulin at scale

As described by Dr. Hall in his book, the journey from treating Mr. Thompson in 1922 to treating the masses began when biochemist James Collip, MD, PhD, discovered a means of purifying the animal pancreas extracts used to treat the teenager.

But production at scale presented a further challenge. This was overcome in 1924 when Eli Lilly drew on a technique used in the beer brewing process – where pH guides bitterness – to purify and manufacture large amounts of insulin.

By 1936, a range of slower-acting cattle and pig-derived insulins, the first produced by Novo Nordisk Pharmaceuticals, were developed.

However, it took 8,000 lb (approximately 3,600 kg) of pancreas glands from 23,500 animals to make 1 lb (0.5 kg) of insulin, so a more efficient process was badly needed.

Dr. Hall, who is a molecular biologist as well as an author, explains that the use of recombinant DNA technology to produce human insulin, as done by Genentech in the late 70s, was a key development in the story of modern insulin products. Genentech then provided synthetic human insulin for Eli Lilly to conduct clinical trials.

Human insulin most closely resembles porcine insulin structure and function, differing by only one amino acid, while human insulin differs from bovine insulin by three amino acid residues. This synthetic human insulin eliminated the allergies that the animal-derived products sometimes caused.

In the early 1980s, Eli Lilly produced Humulin, the first biosynthetic (made in Escherichia coli, hence the term, “bio”) human insulin.

This technology eventually “allowed for the alteration of specific amino acids in the sequence of the insulin protein to make insulin analogs [synthetic versions grown in E. coli and genetically altered for various properties] that act faster, or more slowly, than normal human insulin. By using the slow- and fast-acting insulins in combination, a patient can control their blood sugar levels with a much greater degree of finesse and precision,” Dr. Hall explained.

Today, a whole range of insulins are available, including ultra–rapid-acting, short-acting, intermediate-acting, long-acting, ultra–long-acting, and even inhaled insulin, although the latter is expensive, has been associated with side effects, and is less commonly used, according to Dr. Stephens.

Oral insulin formulations are even in the early stages of development, with candidate drugs by Generex and from the Oralis project.

“With insulin therapy, we try to reproduce the normal physiology of the healthy body and pancreas,” Dr. Stephens explained.

Insulin analogs are only made by three companies (Eli Lilly, Novo Nordisk, and Sanofi), and they are generally much more expensive than nonanalog human insulin. In the United Kingdom through the NHS, they cost twice as much.

In the United States today, one of the biggest barriers to proper care of type 1 diabetes is the cost of insulin, which can limit access. With the market controlled by these three large companies, the average cost of a unit of insulin in the United States, according to RAND research, was $98.17 in January 2021, compared with $7.52 in the United Kingdom and $12.00 in Canada. 

Several U.S. states have enacted legislation capping insulin copayments to at, or under, $100 a month. But the federal Build Back Better Framework Act – which would cap copayments for insulin at $35 – currently hangs in the balance.

Alongside these moves, in 2020 the Food and Drug Administration approved the first interchangeable biosimilar insulin for type 1 diabetes (and insulin-dependent type 2 diabetes) in children and adults, called Semglee (Mylan Pharmaceuticals). 

Biosimilars (essentially generic versions of branded insulins) are expected to be less expensive than branded analogs, but the indications so far are that they will only be around 20% cheaper.

“I totally fail to understand how the richest country in the world still has a debate about price caps, and we are looking at biosimilar markets to change the debate. This makes no sense to me at all,” stressed Dr. Kar. “For lifesaving drugs, they should be funded by the state.”

Insulin also remains unaffordable for many in numerous low- and middle-income countries, where most patients pay out-of-pocket for medicines. Globally, there are estimated to be around 30 million people who need insulin but cannot afford it.

How near to a cure in the coming decades?

Looking ahead to the coming years, if not the next 100, Dr. Stephens highlighted two important aspects of care.

First, the use of a CGM device in combination with an insulin pump (also known as a closed-loop system or artificial pancreas), where the CGM effectively tells the insulin pump how much insulin to automatically dispense, should revolutionize care.

A number of such closed-loop systems have recently been approved in both the United States, including systems from Medtronic and Omnipod, and Europe.

“I wear one of these and it’s been a life changer for me, but it doesn’t suit everyone because the technology can be cumbersome, but with time, hopefully things will become smaller and more accurate in insulin delivery,” Dr. Stephens added.

The second advance of interest is the development and transplantation of cells that produce insulin.

Dr. Stephens explained that someone living with type 1 diabetes has a lot to think about, not least, doing the math related to insulin requirement. “If we just had cells from a pancreas that could be transplanted and would do that for us, then it would be a total game changer.”

To date, Vertex Pharmaceuticals has successfully treated one patient – who had lived with type 1 diabetes for about 40 years and had recurrent episodes of severe hypoglycemia – with an infusion of stem cell–derived differentiated islet cells into his liver. The procedure resulted in near reversal of type 1 diabetes, with his insulin dose reduced from 34 to 3 units, and his hemoglobin A1c falling from 8.6% to 7.2%.

And although the patient, Brian Shelton, still needs to take immunosuppressive agents to prevent rejection of the stem cell–derived islets, “it’s a whole new life,” he recently told the New York Times.  

Another company called ViaCyte is also working on a similar approach.

Whether this is a cure for type 1 diabetes is still debatable, said Anne Peters, MD, of the University of Southern California, Los Angeles. “Is it true? In a word, no. But we are part of the way there, which is much closer than we were 6 months ago.”

There are also ongoing clinical trials of therapeutic interventions to prevent or delay the trajectory from presymptomatic to clinical type 1 diabetes. The most advanced is the anti-CD3 monoclonal antibody teplizumab (Tzield, Provention Bio), which was rejected by the FDA in July 2021, but has since been refiled. The company expects to hear from the agency by the end of March 2022 as to whether the resubmission has been accepted.
 

Diabetes specialist nurses/educators keep it human

Dr. Hall said he concurs with the late eminent U.K. diabetes specialist Robert Tattersall’s observation on what he considers one of the most important advances in the management and treatment of type 1 diabetes: the human touch.

Referring to Dr. Tattersall’s book, “Diabetes: A Biography,” Dr. Hall quoted: “If asked what innovation had made the most difference to their lives in the 1980s, patients with type 1 diabetes in England would unhesitatingly have chosen not human insulin, but the spread of diabetes specialist nurses ... these people (mainly women) did more in the last two decades of the 20th century to improve the standard of diabetes care than any other innovation or drug.”

In the United States, diabetes specialist nurses were called diabetes educators until recently, when the name changed to certified diabetes care and education specialist.

“Above all, they have humanized the service and given the patient a say in the otherwise unequal relationship with all-powerful doctors,” concluded Dr. Hall, again quoting Dr. Tattersall.

A version of this article first appeared on Medscape.com.

Editor’s note: This is the second in a two-part series commemorating the 100-year anniversary of the first use of insulin in humans. Part 1 of this series examined the rivalry behind the discovery and use of insulin.

One hundred years ago, teenager Leonard Thompson was the first patient with type 1 diabetes to be successfully treated with insulin, granting him a reprieve from what was a certain death sentence at the time.

Since then, research has gathered pace. In the century since insulin’s discovery and first use, recombinant DNA technology has allowed for the engineering of the insulin molecule, providing numerous short- and long-acting analog versions. At the same time, technological leaps in automated insulin delivery and monitoring of blood glucose ensure more time with glucose in range and fewer life-threatening complications for those with type 1 diabetes fortunate enough to have access to the technology. 

In spite of these advancements, there is still scope for further evolution of disease management, with the holy grail being the transplant of stem cell–derived islet cells capable of making insulin, ideally encased in some kind of protective device so that immunosuppression is not required.

Indeed, it is not unreasonable to “hope that type 1 diabetes will be a curable disease in the next 100 years,” said Elizabeth Stephens, MD, an endocrinologist who has type 1 diabetes and practices in Portland, Ore.
 

Type 1 diabetes: The past 100 years

The epidemiology of type 1 diabetes has shifted considerably since 1922. A century ago, given that average life expectancy in the United States was around 54 years, it was pretty much the only type of diabetes that doctors encountered. “There was some type 2 diabetes about in heavier people, but the focus was on type 1 diabetes,” noted Dr. Stephens.

Originally called juvenile diabetes because it was thought to only occur in children, “now 50% of people are diagnosed with type 1 diabetes ... over [the age of] 20,” explained Dr. Stephens.

In the United States, around 1.4 million adults 20 years and older, and 187,000 children younger than 20, have the disease, according to data from the National Diabetes Statistics Report 2020 by the Centers for Disease Control and Prevention. This total represents an increase of nearly 30% from 2017.

Over the years, theories as to the cause, or trigger, for type 1 diabetes “have included cow’s milk and [viral] infections,” said Dr. Stephens. “Most likely, there’s a genetic predisposition and some type of exposure, which creates the perfect storm to trigger disease.”

There are hints that COVID-19 might be precipitating type 1 diabetes in some people. Recently, the CDC found SARS-CoV-2 infection was associated with an increased risk for diabetes (all types) among youth, but not other acute respiratory infections. And two further studies from different parts of the world have recently identified an increase in the incidence of type 1 diabetes in children since the COVID-19 pandemic began, but the reasons remain unclear.

The global CoviDiab registry has also been established to collect data on patients with COVID-19–related diabetes.

The million-dollar question: Is COVID-19 itself is propagating type 1 diabetes or unmasking a predisposition to the disease sooner? The latter might be associated with a lower type 1 diabetes rate in the future, said Partha Kar, MBBS, OBE, national specialty advisor, diabetes, for National Health Service England.

“Right now, we don’t know the answer. Whichever way you look at it, it is likely there will be a rise in cases, and in countries where insulin is not freely available, healthcare systems need to have supply ready because insulin is lifesaving in type 1 diabetes,” Dr. Kar emphasized.
 

CGMs and automated insulin delivery: A ‘godsend’

A huge change has also been seen, most notably in the past 15 to 20 years, in the technological advancements that can help those with type 1 diabetes live an easier life.

Continuous glucose monitors (CGMs) and automated ways of delivering insulin, such as smart pens and insulin pumps, have made the daily life of a person with type 1 diabetes in the Western world considerably more comfortable.

CGMs provide a constant stream of data to an app, often wirelessly in sync with the insulin pump. However, on a global level, they are only available to a lucky few.

In England, pending National Institute for Health and Care Excellence) approval, any CGM should be available to all eligible patients with type 1 diabetes within the NHS from April 2022, Dr. Kar pointed out. In the United States, CGMs are often unaffordable and access is mostly dependent on a person’s health insurance.

Kersten Hall, PhD, a scientist and U.K.-based medical historian who recently wrote a book, “Insulin, the Crooked Timber” (Oxford, England: Oxford University Press, 2022) uncovering the lesser-known story behind the discovery of insulin, was diagnosed with adult-onset type 1 diabetes at the age of 41. Dr. Hall had always found the finger-prick blood glucose test to be a chore but now has a CGM. 

“It’s a total game changer for me: a godsend. I can’t sing its praises enough,” he said. “All it involves is the swipe of the phone and this provides a reading which tells me if my glucose is too low, so I eat something, or too high, so I might [go for] a run.”
 

Brewing insulin at scale

As described by Dr. Hall in his book, the journey from treating Mr. Thompson in 1922 to treating the masses began when biochemist James Collip, MD, PhD, discovered a means of purifying the animal pancreas extracts used to treat the teenager.

But production at scale presented a further challenge. This was overcome in 1924 when Eli Lilly drew on a technique used in the beer brewing process – where pH guides bitterness – to purify and manufacture large amounts of insulin.

By 1936, a range of slower-acting cattle and pig-derived insulins, the first produced by Novo Nordisk Pharmaceuticals, were developed.

However, it took 8,000 lb (approximately 3,600 kg) of pancreas glands from 23,500 animals to make 1 lb (0.5 kg) of insulin, so a more efficient process was badly needed.

Dr. Hall, who is a molecular biologist as well as an author, explains that the use of recombinant DNA technology to produce human insulin, as done by Genentech in the late 70s, was a key development in the story of modern insulin products. Genentech then provided synthetic human insulin for Eli Lilly to conduct clinical trials.

Human insulin most closely resembles porcine insulin structure and function, differing by only one amino acid, while human insulin differs from bovine insulin by three amino acid residues. This synthetic human insulin eliminated the allergies that the animal-derived products sometimes caused.

In the early 1980s, Eli Lilly produced Humulin, the first biosynthetic (made in Escherichia coli, hence the term, “bio”) human insulin.

This technology eventually “allowed for the alteration of specific amino acids in the sequence of the insulin protein to make insulin analogs [synthetic versions grown in E. coli and genetically altered for various properties] that act faster, or more slowly, than normal human insulin. By using the slow- and fast-acting insulins in combination, a patient can control their blood sugar levels with a much greater degree of finesse and precision,” Dr. Hall explained.

Today, a whole range of insulins are available, including ultra–rapid-acting, short-acting, intermediate-acting, long-acting, ultra–long-acting, and even inhaled insulin, although the latter is expensive, has been associated with side effects, and is less commonly used, according to Dr. Stephens.

Oral insulin formulations are even in the early stages of development, with candidate drugs by Generex and from the Oralis project.

“With insulin therapy, we try to reproduce the normal physiology of the healthy body and pancreas,” Dr. Stephens explained.

Insulin analogs are only made by three companies (Eli Lilly, Novo Nordisk, and Sanofi), and they are generally much more expensive than nonanalog human insulin. In the United Kingdom through the NHS, they cost twice as much.

In the United States today, one of the biggest barriers to proper care of type 1 diabetes is the cost of insulin, which can limit access. With the market controlled by these three large companies, the average cost of a unit of insulin in the United States, according to RAND research, was $98.17 in January 2021, compared with $7.52 in the United Kingdom and $12.00 in Canada. 

Several U.S. states have enacted legislation capping insulin copayments to at, or under, $100 a month. But the federal Build Back Better Framework Act – which would cap copayments for insulin at $35 – currently hangs in the balance.

Alongside these moves, in 2020 the Food and Drug Administration approved the first interchangeable biosimilar insulin for type 1 diabetes (and insulin-dependent type 2 diabetes) in children and adults, called Semglee (Mylan Pharmaceuticals). 

Biosimilars (essentially generic versions of branded insulins) are expected to be less expensive than branded analogs, but the indications so far are that they will only be around 20% cheaper.

“I totally fail to understand how the richest country in the world still has a debate about price caps, and we are looking at biosimilar markets to change the debate. This makes no sense to me at all,” stressed Dr. Kar. “For lifesaving drugs, they should be funded by the state.”

Insulin also remains unaffordable for many in numerous low- and middle-income countries, where most patients pay out-of-pocket for medicines. Globally, there are estimated to be around 30 million people who need insulin but cannot afford it.

How near to a cure in the coming decades?

Looking ahead to the coming years, if not the next 100, Dr. Stephens highlighted two important aspects of care.

First, the use of a CGM device in combination with an insulin pump (also known as a closed-loop system or artificial pancreas), where the CGM effectively tells the insulin pump how much insulin to automatically dispense, should revolutionize care.

A number of such closed-loop systems have recently been approved in both the United States, including systems from Medtronic and Omnipod, and Europe.

“I wear one of these and it’s been a life changer for me, but it doesn’t suit everyone because the technology can be cumbersome, but with time, hopefully things will become smaller and more accurate in insulin delivery,” Dr. Stephens added.

The second advance of interest is the development and transplantation of cells that produce insulin.

Dr. Stephens explained that someone living with type 1 diabetes has a lot to think about, not least, doing the math related to insulin requirement. “If we just had cells from a pancreas that could be transplanted and would do that for us, then it would be a total game changer.”

To date, Vertex Pharmaceuticals has successfully treated one patient – who had lived with type 1 diabetes for about 40 years and had recurrent episodes of severe hypoglycemia – with an infusion of stem cell–derived differentiated islet cells into his liver. The procedure resulted in near reversal of type 1 diabetes, with his insulin dose reduced from 34 to 3 units, and his hemoglobin A1c falling from 8.6% to 7.2%.

And although the patient, Brian Shelton, still needs to take immunosuppressive agents to prevent rejection of the stem cell–derived islets, “it’s a whole new life,” he recently told the New York Times.  

Another company called ViaCyte is also working on a similar approach.

Whether this is a cure for type 1 diabetes is still debatable, said Anne Peters, MD, of the University of Southern California, Los Angeles. “Is it true? In a word, no. But we are part of the way there, which is much closer than we were 6 months ago.”

There are also ongoing clinical trials of therapeutic interventions to prevent or delay the trajectory from presymptomatic to clinical type 1 diabetes. The most advanced is the anti-CD3 monoclonal antibody teplizumab (Tzield, Provention Bio), which was rejected by the FDA in July 2021, but has since been refiled. The company expects to hear from the agency by the end of March 2022 as to whether the resubmission has been accepted.
 

Diabetes specialist nurses/educators keep it human

Dr. Hall said he concurs with the late eminent U.K. diabetes specialist Robert Tattersall’s observation on what he considers one of the most important advances in the management and treatment of type 1 diabetes: the human touch.

Referring to Dr. Tattersall’s book, “Diabetes: A Biography,” Dr. Hall quoted: “If asked what innovation had made the most difference to their lives in the 1980s, patients with type 1 diabetes in England would unhesitatingly have chosen not human insulin, but the spread of diabetes specialist nurses ... these people (mainly women) did more in the last two decades of the 20th century to improve the standard of diabetes care than any other innovation or drug.”

In the United States, diabetes specialist nurses were called diabetes educators until recently, when the name changed to certified diabetes care and education specialist.

“Above all, they have humanized the service and given the patient a say in the otherwise unequal relationship with all-powerful doctors,” concluded Dr. Hall, again quoting Dr. Tattersall.

A version of this article first appeared on Medscape.com.

The genetically altered pig’s heart “worked like a rock star, beautifully functioning,” the surgeon who performed the pioneering Jan. 7 xenotransplant procedure said in a press statement on the death of the patient, David Bennett Sr.

“He wasn’t able to overcome what turned out to be devastating – the debilitation from his previous period of heart failure, which was extreme,” said Bartley P. Griffith, MD, clinical director of the cardiac xenotransplantation program at the University of Maryland, Baltimore.

University of Maryland Medical Center

Representatives of the institution aren’t offering many details on the cause of Mr. Bennett’s death on March 8, 60 days after his operation, but said they will elaborate when their findings are formally published. But their comments seem to downplay the unique nature of the implanted heart itself as a culprit and instead implicate the patient’s diminished overall clinical condition and what grew into an ongoing battle with infections.

The 57-year-old Bennett, bedridden with end-stage heart failure, judged a poor candidate for a ventricular assist device, and on extracorporeal membrane oxygenation (ECMO), reportedly was offered the extraordinary surgery after being turned down for a conventional transplant at several major centers.

“Until day 45 or 50, he was doing very well,” Muhammad M. Mohiuddin, MD, the xenotransplantation program’s scientific director, observed in the statement. But infections soon took advantage of his hobbled immune system.

Given his “preexisting condition and how frail his body was,” Dr. Mohiuddin said, “we were having difficulty maintaining a balance between his immunosuppression and controlling his infection.” Mr. Bennett went into multiple organ failure and “I think that resulted in his passing away.”


 

Beyond wildest dreams

The surgeons confidently framed Mr. Bennett’s experience as a milestone for heart xenotransplantation. “The demonstration that it was possible, beyond the wildest dreams of most people in the field, even, at this point – that we were able to take a genetically engineered organ and watch it function flawlessly for 9 weeks – is pretty positive in terms of the potential of this therapy,” Dr. Griffith said.

But enough questions linger that others were more circumspect, even as they praised the accomplishment. “There’s no question that this is a historic event,” Mandeep R. Mehra, MD, of Harvard Medical School, and director of the Center for Advanced Heart Disease at Brigham and Women’s Hospital, both in Boston, said in an interview.

Still, “I don’t think we should just conclude that it was the patient’s frailty or death from infection,” Dr. Mehra said. With so few details available, “I would be very careful in prematurely concluding that the problem did not reside with the heart but with the patient. We cannot be sure.”

For example, he noted, “6 to 8 weeks is right around the time when some cardiac complications, like accelerated forms of vasculopathy, could become evident.” Immune-mediated cardiac allograft vasculopathy is a common cause of heart transplant failure.

Or, “it could as easily have been the fact that immunosuppression was modified at 6 to 7 weeks in response to potential infection, which could have led to a cardiac compromise,” Dr. Mehra said. “We just don’t know.”

“It’s really important that this be reported in a scientifically accurate way, because we will all learn from this,” Lori J. West, MD, DPhil, said in an interview.

Little seems to be known for sure about the actual cause of death, “but the fact there was not hyperacute rejection is itself a big step forward. And we know, at least from the limited information we have, that it did not occur,” observed Dr. West, who directs the Alberta Transplant Institute, Edmonton, and the Canadian Donation and Transplantation Research Program. She is a professor of pediatrics with adjunct positions in the departments of surgery and microbiology/immunology.

Dr. West also sees Mr. Bennett’s struggle with infections and adjustments to his unique immunosuppressive regimen, at least as characterized by his care team, as in line with the experience of many heart transplant recipients facing the same threat.

“We already walk this tightrope with every transplant patient,” she said. Typically, they’re put on a somewhat standardized immunosuppressant regimen, “and then we modify it a bit, either increasing or decreasing it, depending on the posttransplant course.” The regimen can become especially intense in response to new signs of rejection, “and you know that that’s going to have an impact on susceptibility to all kinds of infections.”
 

Full circle

The porcine heart was protected along two fronts against assault from Mr. Bennett’s immune system and other inhospitable aspects of his physiology, either of which could also have been obstacles to success: Genetic modification (Revivicor) of the pig that provided the heart, and a singularly aggressive antirejection drug regimen for the patient.

The knockout of three genes targeting specific porcine cell-surface carbohydrates that provoke a strong human antibody response reportedly averted a hyperacute rejection response that would have caused the graft to fail almost immediately.

Other genetic manipulations, some using CRISPR technology, silenced genes encoded for porcine endogenous retroviruses. Others were aimed at controlling myocardial growth and stemming graft microangiopathy.  

Mr. Bennett himself was treated with powerful immunosuppressants, including an investigational anti-CD40 monoclonal antibody (KPL-404, Kiniksa Pharmaceuticals) that, according to UMSOM, inhibits a well-recognized pathway critical to B-cell proliferation, T-cell activation, and antibody production.

“I suspect the patient may not have had rejection, but unfortunately, that intense immunosuppression really set him up – even if he had been half that age – for a very difficult time,” David A. Baran, MD, a cardiologist from Sentara Advanced Heart Failure Center, Norfolk, Va., who studies transplant immunology, said in an interview.

“This is in some ways like the original heart transplant in 1967, when the ability to do the surgery evolved before understanding of the immunosuppression needed. Four or 5 years later, heart transplantation almost died out, before the development of better immunosuppressants like cyclosporine and later tacrolimus,” Dr. Baran said.

“The current age, when we use less immunosuppression than ever, is based on 30 years of progressive success,” he noted. This landmark xenotransplantation “basically turns back the clock to a time when the intensity of immunosuppression by definition had to be extremely high, because we really didn’t know what to expect.”
 

Emerging role of xeno-organs

Xenotransplantation has been touted as potential strategy for expanding the pool of organs available for transplantation. Mr. Bennett’s “breakthrough surgery” takes the world “one step closer to solving the organ shortage crisis,” his surgeon, Dr. Griffith, announced soon after the procedure. “There are simply not enough donor human hearts available to meet the long list of potential recipients.”

But it’s not the only proposed approach. Measures could be taken, for example, to make more efficient use of the human organs that become available, partly by opening the field to additional less-than-ideal hearts and loosening regulatory mandates for projected graft survival.

“Every year, more than two-thirds of donor organs in the United States are discarded. So it’s not actually that we don’t have enough organs, it’s that we don’t have enough organs that people are willing to take,” Dr. Baran said. Still, it’s important to pursue all promising avenues, and “the genetic manipulation pathway is remarkable.”

But “honestly, organs such as kidneys probably make the most sense” for early study of xenotransplantation from pigs, he said. “The waiting list for kidneys is also very long, but if the kidney graft were to fail, the patient wouldn’t die. It would allow us to work out the immunosuppression without putting patients’ lives at risk.”

Often overlooked in assessments of organ demand, Dr. West said, is that “a lot of patients who could benefit from a transplant will never even be listed for a transplant.” It’s not clear why; perhaps they have multiple comorbidities, live too far from a transplant center, “or they’re too big or too small. Even if there were unlimited organs, you could never meet the needs of people who could benefit from transplantation.”

So even if more available donor organs were used, she said, there would still be a gap that xenotransplantation could help fill. “I’m very much in favor of research that allows us to continue to try to find a pathway to xenotransplantation. I think it’s critically important.”

Unquestionably, “we now need to have a dialogue to entertain how a technology like this, using modern medicine with gene editing, is really going to be utilized,” Dr. Mehra said. The Bennett case “does open up the field, but it also raises caution.” There should be broad participation to move the field forward, “coordinated through either societies or nationally allocated advisory committees that oversee the movement of this technology, to the next step.”

Ideally, that next step “would be to do a safety clinical trial in the right patient,” he said. “And the right patient, by definition, would be one who does not have a life-prolonging option, either mechanical circulatory support or allograft transplantation. That would be the goal.”

Dr. Mehra has reported receiving payments to his institution from Abbott for consulting; consulting fees from Janssen, Mesoblast, Broadview Ventures, Natera, Paragonix, Moderna, and the Baim Institute for Clinical Research; and serving on a scientific advisory board NuPulseCV, Leviticus, and FineHeart. Dr. Baran disclosed consulting for Getinge and LivaNova; speaking for Pfizer; and serving on trial steering committees for CareDx and Procyrion, all unrelated to xenotransplantation. Dr. West has declared no relevant conflicts.

A version of this article first appeared on Medscape.com.

The genetically altered pig’s heart “worked like a rock star, beautifully functioning,” the surgeon who performed the pioneering Jan. 7 xenotransplant procedure said in a press statement on the death of the patient, David Bennett Sr.

“He wasn’t able to overcome what turned out to be devastating – the debilitation from his previous period of heart failure, which was extreme,” said Bartley P. Griffith, MD, clinical director of the cardiac xenotransplantation program at the University of Maryland, Baltimore.

University of Maryland Medical Center

Representatives of the institution aren’t offering many details on the cause of Mr. Bennett’s death on March 8, 60 days after his operation, but said they will elaborate when their findings are formally published. But their comments seem to downplay the unique nature of the implanted heart itself as a culprit and instead implicate the patient’s diminished overall clinical condition and what grew into an ongoing battle with infections.

The 57-year-old Bennett, bedridden with end-stage heart failure, judged a poor candidate for a ventricular assist device, and on extracorporeal membrane oxygenation (ECMO), reportedly was offered the extraordinary surgery after being turned down for a conventional transplant at several major centers.

“Until day 45 or 50, he was doing very well,” Muhammad M. Mohiuddin, MD, the xenotransplantation program’s scientific director, observed in the statement. But infections soon took advantage of his hobbled immune system.

Given his “preexisting condition and how frail his body was,” Dr. Mohiuddin said, “we were having difficulty maintaining a balance between his immunosuppression and controlling his infection.” Mr. Bennett went into multiple organ failure and “I think that resulted in his passing away.”


 

Beyond wildest dreams

The surgeons confidently framed Mr. Bennett’s experience as a milestone for heart xenotransplantation. “The demonstration that it was possible, beyond the wildest dreams of most people in the field, even, at this point – that we were able to take a genetically engineered organ and watch it function flawlessly for 9 weeks – is pretty positive in terms of the potential of this therapy,” Dr. Griffith said.

But enough questions linger that others were more circumspect, even as they praised the accomplishment. “There’s no question that this is a historic event,” Mandeep R. Mehra, MD, of Harvard Medical School, and director of the Center for Advanced Heart Disease at Brigham and Women’s Hospital, both in Boston, said in an interview.

Still, “I don’t think we should just conclude that it was the patient’s frailty or death from infection,” Dr. Mehra said. With so few details available, “I would be very careful in prematurely concluding that the problem did not reside with the heart but with the patient. We cannot be sure.”

For example, he noted, “6 to 8 weeks is right around the time when some cardiac complications, like accelerated forms of vasculopathy, could become evident.” Immune-mediated cardiac allograft vasculopathy is a common cause of heart transplant failure.

Or, “it could as easily have been the fact that immunosuppression was modified at 6 to 7 weeks in response to potential infection, which could have led to a cardiac compromise,” Dr. Mehra said. “We just don’t know.”

“It’s really important that this be reported in a scientifically accurate way, because we will all learn from this,” Lori J. West, MD, DPhil, said in an interview.

Little seems to be known for sure about the actual cause of death, “but the fact there was not hyperacute rejection is itself a big step forward. And we know, at least from the limited information we have, that it did not occur,” observed Dr. West, who directs the Alberta Transplant Institute, Edmonton, and the Canadian Donation and Transplantation Research Program. She is a professor of pediatrics with adjunct positions in the departments of surgery and microbiology/immunology.

Dr. West also sees Mr. Bennett’s struggle with infections and adjustments to his unique immunosuppressive regimen, at least as characterized by his care team, as in line with the experience of many heart transplant recipients facing the same threat.

“We already walk this tightrope with every transplant patient,” she said. Typically, they’re put on a somewhat standardized immunosuppressant regimen, “and then we modify it a bit, either increasing or decreasing it, depending on the posttransplant course.” The regimen can become especially intense in response to new signs of rejection, “and you know that that’s going to have an impact on susceptibility to all kinds of infections.”
 

Full circle

The porcine heart was protected along two fronts against assault from Mr. Bennett’s immune system and other inhospitable aspects of his physiology, either of which could also have been obstacles to success: Genetic modification (Revivicor) of the pig that provided the heart, and a singularly aggressive antirejection drug regimen for the patient.

The knockout of three genes targeting specific porcine cell-surface carbohydrates that provoke a strong human antibody response reportedly averted a hyperacute rejection response that would have caused the graft to fail almost immediately.

Other genetic manipulations, some using CRISPR technology, silenced genes encoded for porcine endogenous retroviruses. Others were aimed at controlling myocardial growth and stemming graft microangiopathy.  

Mr. Bennett himself was treated with powerful immunosuppressants, including an investigational anti-CD40 monoclonal antibody (KPL-404, Kiniksa Pharmaceuticals) that, according to UMSOM, inhibits a well-recognized pathway critical to B-cell proliferation, T-cell activation, and antibody production.

“I suspect the patient may not have had rejection, but unfortunately, that intense immunosuppression really set him up – even if he had been half that age – for a very difficult time,” David A. Baran, MD, a cardiologist from Sentara Advanced Heart Failure Center, Norfolk, Va., who studies transplant immunology, said in an interview.

“This is in some ways like the original heart transplant in 1967, when the ability to do the surgery evolved before understanding of the immunosuppression needed. Four or 5 years later, heart transplantation almost died out, before the development of better immunosuppressants like cyclosporine and later tacrolimus,” Dr. Baran said.

“The current age, when we use less immunosuppression than ever, is based on 30 years of progressive success,” he noted. This landmark xenotransplantation “basically turns back the clock to a time when the intensity of immunosuppression by definition had to be extremely high, because we really didn’t know what to expect.”
 

Emerging role of xeno-organs

Xenotransplantation has been touted as potential strategy for expanding the pool of organs available for transplantation. Mr. Bennett’s “breakthrough surgery” takes the world “one step closer to solving the organ shortage crisis,” his surgeon, Dr. Griffith, announced soon after the procedure. “There are simply not enough donor human hearts available to meet the long list of potential recipients.”

But it’s not the only proposed approach. Measures could be taken, for example, to make more efficient use of the human organs that become available, partly by opening the field to additional less-than-ideal hearts and loosening regulatory mandates for projected graft survival.

“Every year, more than two-thirds of donor organs in the United States are discarded. So it’s not actually that we don’t have enough organs, it’s that we don’t have enough organs that people are willing to take,” Dr. Baran said. Still, it’s important to pursue all promising avenues, and “the genetic manipulation pathway is remarkable.”

But “honestly, organs such as kidneys probably make the most sense” for early study of xenotransplantation from pigs, he said. “The waiting list for kidneys is also very long, but if the kidney graft were to fail, the patient wouldn’t die. It would allow us to work out the immunosuppression without putting patients’ lives at risk.”

Often overlooked in assessments of organ demand, Dr. West said, is that “a lot of patients who could benefit from a transplant will never even be listed for a transplant.” It’s not clear why; perhaps they have multiple comorbidities, live too far from a transplant center, “or they’re too big or too small. Even if there were unlimited organs, you could never meet the needs of people who could benefit from transplantation.”

So even if more available donor organs were used, she said, there would still be a gap that xenotransplantation could help fill. “I’m very much in favor of research that allows us to continue to try to find a pathway to xenotransplantation. I think it’s critically important.”

Unquestionably, “we now need to have a dialogue to entertain how a technology like this, using modern medicine with gene editing, is really going to be utilized,” Dr. Mehra said. The Bennett case “does open up the field, but it also raises caution.” There should be broad participation to move the field forward, “coordinated through either societies or nationally allocated advisory committees that oversee the movement of this technology, to the next step.”

Ideally, that next step “would be to do a safety clinical trial in the right patient,” he said. “And the right patient, by definition, would be one who does not have a life-prolonging option, either mechanical circulatory support or allograft transplantation. That would be the goal.”

Dr. Mehra has reported receiving payments to his institution from Abbott for consulting; consulting fees from Janssen, Mesoblast, Broadview Ventures, Natera, Paragonix, Moderna, and the Baim Institute for Clinical Research; and serving on a scientific advisory board NuPulseCV, Leviticus, and FineHeart. Dr. Baran disclosed consulting for Getinge and LivaNova; speaking for Pfizer; and serving on trial steering committees for CareDx and Procyrion, all unrelated to xenotransplantation. Dr. West has declared no relevant conflicts.

A version of this article first appeared on Medscape.com.

The genetically altered pig’s heart “worked like a rock star, beautifully functioning,” the surgeon who performed the pioneering Jan. 7 xenotransplant procedure said in a press statement on the death of the patient, David Bennett Sr.

“He wasn’t able to overcome what turned out to be devastating – the debilitation from his previous period of heart failure, which was extreme,” said Bartley P. Griffith, MD, clinical director of the cardiac xenotransplantation program at the University of Maryland, Baltimore.

University of Maryland Medical Center

Representatives of the institution aren’t offering many details on the cause of Mr. Bennett’s death on March 8, 60 days after his operation, but said they will elaborate when their findings are formally published. But their comments seem to downplay the unique nature of the implanted heart itself as a culprit and instead implicate the patient’s diminished overall clinical condition and what grew into an ongoing battle with infections.

The 57-year-old Bennett, bedridden with end-stage heart failure, judged a poor candidate for a ventricular assist device, and on extracorporeal membrane oxygenation (ECMO), reportedly was offered the extraordinary surgery after being turned down for a conventional transplant at several major centers.

“Until day 45 or 50, he was doing very well,” Muhammad M. Mohiuddin, MD, the xenotransplantation program’s scientific director, observed in the statement. But infections soon took advantage of his hobbled immune system.

Given his “preexisting condition and how frail his body was,” Dr. Mohiuddin said, “we were having difficulty maintaining a balance between his immunosuppression and controlling his infection.” Mr. Bennett went into multiple organ failure and “I think that resulted in his passing away.”


 

Beyond wildest dreams

The surgeons confidently framed Mr. Bennett’s experience as a milestone for heart xenotransplantation. “The demonstration that it was possible, beyond the wildest dreams of most people in the field, even, at this point – that we were able to take a genetically engineered organ and watch it function flawlessly for 9 weeks – is pretty positive in terms of the potential of this therapy,” Dr. Griffith said.

But enough questions linger that others were more circumspect, even as they praised the accomplishment. “There’s no question that this is a historic event,” Mandeep R. Mehra, MD, of Harvard Medical School, and director of the Center for Advanced Heart Disease at Brigham and Women’s Hospital, both in Boston, said in an interview.

Still, “I don’t think we should just conclude that it was the patient’s frailty or death from infection,” Dr. Mehra said. With so few details available, “I would be very careful in prematurely concluding that the problem did not reside with the heart but with the patient. We cannot be sure.”

For example, he noted, “6 to 8 weeks is right around the time when some cardiac complications, like accelerated forms of vasculopathy, could become evident.” Immune-mediated cardiac allograft vasculopathy is a common cause of heart transplant failure.

Or, “it could as easily have been the fact that immunosuppression was modified at 6 to 7 weeks in response to potential infection, which could have led to a cardiac compromise,” Dr. Mehra said. “We just don’t know.”

“It’s really important that this be reported in a scientifically accurate way, because we will all learn from this,” Lori J. West, MD, DPhil, said in an interview.

Little seems to be known for sure about the actual cause of death, “but the fact there was not hyperacute rejection is itself a big step forward. And we know, at least from the limited information we have, that it did not occur,” observed Dr. West, who directs the Alberta Transplant Institute, Edmonton, and the Canadian Donation and Transplantation Research Program. She is a professor of pediatrics with adjunct positions in the departments of surgery and microbiology/immunology.

Dr. West also sees Mr. Bennett’s struggle with infections and adjustments to his unique immunosuppressive regimen, at least as characterized by his care team, as in line with the experience of many heart transplant recipients facing the same threat.

“We already walk this tightrope with every transplant patient,” she said. Typically, they’re put on a somewhat standardized immunosuppressant regimen, “and then we modify it a bit, either increasing or decreasing it, depending on the posttransplant course.” The regimen can become especially intense in response to new signs of rejection, “and you know that that’s going to have an impact on susceptibility to all kinds of infections.”
 

Full circle

The porcine heart was protected along two fronts against assault from Mr. Bennett’s immune system and other inhospitable aspects of his physiology, either of which could also have been obstacles to success: Genetic modification (Revivicor) of the pig that provided the heart, and a singularly aggressive antirejection drug regimen for the patient.

The knockout of three genes targeting specific porcine cell-surface carbohydrates that provoke a strong human antibody response reportedly averted a hyperacute rejection response that would have caused the graft to fail almost immediately.

Other genetic manipulations, some using CRISPR technology, silenced genes encoded for porcine endogenous retroviruses. Others were aimed at controlling myocardial growth and stemming graft microangiopathy.  

Mr. Bennett himself was treated with powerful immunosuppressants, including an investigational anti-CD40 monoclonal antibody (KPL-404, Kiniksa Pharmaceuticals) that, according to UMSOM, inhibits a well-recognized pathway critical to B-cell proliferation, T-cell activation, and antibody production.

“I suspect the patient may not have had rejection, but unfortunately, that intense immunosuppression really set him up – even if he had been half that age – for a very difficult time,” David A. Baran, MD, a cardiologist from Sentara Advanced Heart Failure Center, Norfolk, Va., who studies transplant immunology, said in an interview.

“This is in some ways like the original heart transplant in 1967, when the ability to do the surgery evolved before understanding of the immunosuppression needed. Four or 5 years later, heart transplantation almost died out, before the development of better immunosuppressants like cyclosporine and later tacrolimus,” Dr. Baran said.

“The current age, when we use less immunosuppression than ever, is based on 30 years of progressive success,” he noted. This landmark xenotransplantation “basically turns back the clock to a time when the intensity of immunosuppression by definition had to be extremely high, because we really didn’t know what to expect.”
 

Emerging role of xeno-organs

Xenotransplantation has been touted as potential strategy for expanding the pool of organs available for transplantation. Mr. Bennett’s “breakthrough surgery” takes the world “one step closer to solving the organ shortage crisis,” his surgeon, Dr. Griffith, announced soon after the procedure. “There are simply not enough donor human hearts available to meet the long list of potential recipients.”

But it’s not the only proposed approach. Measures could be taken, for example, to make more efficient use of the human organs that become available, partly by opening the field to additional less-than-ideal hearts and loosening regulatory mandates for projected graft survival.

“Every year, more than two-thirds of donor organs in the United States are discarded. So it’s not actually that we don’t have enough organs, it’s that we don’t have enough organs that people are willing to take,” Dr. Baran said. Still, it’s important to pursue all promising avenues, and “the genetic manipulation pathway is remarkable.”

But “honestly, organs such as kidneys probably make the most sense” for early study of xenotransplantation from pigs, he said. “The waiting list for kidneys is also very long, but if the kidney graft were to fail, the patient wouldn’t die. It would allow us to work out the immunosuppression without putting patients’ lives at risk.”

Often overlooked in assessments of organ demand, Dr. West said, is that “a lot of patients who could benefit from a transplant will never even be listed for a transplant.” It’s not clear why; perhaps they have multiple comorbidities, live too far from a transplant center, “or they’re too big or too small. Even if there were unlimited organs, you could never meet the needs of people who could benefit from transplantation.”

So even if more available donor organs were used, she said, there would still be a gap that xenotransplantation could help fill. “I’m very much in favor of research that allows us to continue to try to find a pathway to xenotransplantation. I think it’s critically important.”

Unquestionably, “we now need to have a dialogue to entertain how a technology like this, using modern medicine with gene editing, is really going to be utilized,” Dr. Mehra said. The Bennett case “does open up the field, but it also raises caution.” There should be broad participation to move the field forward, “coordinated through either societies or nationally allocated advisory committees that oversee the movement of this technology, to the next step.”

Ideally, that next step “would be to do a safety clinical trial in the right patient,” he said. “And the right patient, by definition, would be one who does not have a life-prolonging option, either mechanical circulatory support or allograft transplantation. That would be the goal.”

Dr. Mehra has reported receiving payments to his institution from Abbott for consulting; consulting fees from Janssen, Mesoblast, Broadview Ventures, Natera, Paragonix, Moderna, and the Baim Institute for Clinical Research; and serving on a scientific advisory board NuPulseCV, Leviticus, and FineHeart. Dr. Baran disclosed consulting for Getinge and LivaNova; speaking for Pfizer; and serving on trial steering committees for CareDx and Procyrion, all unrelated to xenotransplantation. Dr. West has declared no relevant conflicts.

A version of this article first appeared on Medscape.com.

Continuous positive airway pressure (CPAP) may be only modestly effective for ameliorating metabolic syndrome in patients with moderate to severe obstructive sleep apnea (OSA).

That conclusion comes from investigators in a randomized controlled, trial, who found that, among 100 patients with OSA and a recent diagnosis of metabolic syndrome (MS), 18% of those assigned to use CPAP at night had a reversal of MS at 6 months of follow-up, compared with 4% of controls who were assigned to use nasal strips at night (P = .04).

The majority of patients assigned to CPAP still retained their MS diagnoses at 6 months, and CPAP did not significantly reduce individual components of the syndrome. Use of CPAP was, however, associated with small reductions in visceral fat and improvement in endothelial function, reported Sara Q.C. Giampa, PhD, from the University of São Paulo, and colleagues.

“Despite a significant rate of MS reversibility after CPAP therapy, most of the patients maintained the MS diagnosis. The modest effects of CPAP on MS reversibility underscore the need for combined therapy with CPAP, aiming to maximize metabolic syndrome recovery in parallel with improvements in OSA severity and related symptoms,” according to their study, reported in the journal CHEST^®.

Asked whether he still recommends CPAP to patients with OSA and the metabolic syndrome, given the findings, corresponding author Luciano F. Drager, MD, PhD, replied “yes, definitely.”

“Despite the modest rate in reversing metabolic syndrome after CPAP, the rate was 5-fold higher than non-effective treatment (18% vs. 4%),” he said in an interview.

Dr. Drager noted that studies of other single interventions such as physical exercise to reverse MS in patients with OSA also had modest results.

A researcher who studies the relationship between sleep, circadian rhythms, and metabolism commented that, although the patients in the CPAP group were compliant with the assigned equipment and had both reductions in apneic events and improvement in oxygen saturation, the effect of CPAP on the metabolic syndrome was rather small.

“The CPAP was doing what we thought it was supposed to do, but it didn’t have the magnitude of effect on the metabolic syndrome as I expected or I think as the authors expected,” said Deanna Arble, PhD, assistant professor of biological science at Marquette University, Milwaukee.

She noted that the study also failed to detect a significant improvement in the blood pressure component of metabolic syndrome.

“In my experience and my review of the literature, blood pressure tends to be the one that’s improved most dramatically with CPAP,” she said.

Dr. Arble was not involved in the study.

Study details

In the trial, titled TREATOSA-MS, the investigators enrolled 100 patients with a recent diagnosis of metabolic syndrome and moderate to severe OSA, defined as 15 or more apnea-hypopnea index events per hour. The patients were stratified by body mass index and then randomized to undergo therapeutic CPAP or to use nasal strips for 6 months.

At baseline and at the end of each intervention investigators measured anthropometric variables, blood pressure, glucose, and lipid profiles. They also leptin and adiponectin, body composition, food intake, physical activity, subcutaneous and abdominal fat (visceral and hepatic), and endothelial function to control for potential confounders.

As noted previously, they found that after 6 months “most patients with OSA randomized to CPAP retained the MS diagnosis, but the rate of MS reversibility was higher than observed in the placebo group.” The difference in metabolic syndrome reversal, 18% with CPAP versus 4% with nasal strips, translated into a hazard ratio favoring CPAP of 5.27 (P = .04).

Also as noted, in analyses adjusted for baseline values, CPAP did not significantly improve either weight, liver fat, lip profiles, or the adiposity biomarkers leptin and adiponectin, but did have “very modest” influence on reducing visceral fat and improving endothelial function.
 

Rigorous study

Dr. Arble said that most studies of the association between OSA and metabolic syndrome have focused on only one or two of the parameters that were included in the TREATOSA-MS study, giving the findings additional weight.

“This could potentially be a very good, carefully controlled first insight into how obstructive sleep apnea is related to the metabolic syndrome,” she said.

The study was funded by grants Fundação de Amparo Q22 à Pesquisa do Estado de São Paulo and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior. The authors and Dr. Arble reported having no conflicts of interest to disclose.

Continuous positive airway pressure (CPAP) may be only modestly effective for ameliorating metabolic syndrome in patients with moderate to severe obstructive sleep apnea (OSA).

That conclusion comes from investigators in a randomized controlled, trial, who found that, among 100 patients with OSA and a recent diagnosis of metabolic syndrome (MS), 18% of those assigned to use CPAP at night had a reversal of MS at 6 months of follow-up, compared with 4% of controls who were assigned to use nasal strips at night (P = .04).

The majority of patients assigned to CPAP still retained their MS diagnoses at 6 months, and CPAP did not significantly reduce individual components of the syndrome. Use of CPAP was, however, associated with small reductions in visceral fat and improvement in endothelial function, reported Sara Q.C. Giampa, PhD, from the University of São Paulo, and colleagues.

“Despite a significant rate of MS reversibility after CPAP therapy, most of the patients maintained the MS diagnosis. The modest effects of CPAP on MS reversibility underscore the need for combined therapy with CPAP, aiming to maximize metabolic syndrome recovery in parallel with improvements in OSA severity and related symptoms,” according to their study, reported in the journal CHEST^®.

Asked whether he still recommends CPAP to patients with OSA and the metabolic syndrome, given the findings, corresponding author Luciano F. Drager, MD, PhD, replied “yes, definitely.”

“Despite the modest rate in reversing metabolic syndrome after CPAP, the rate was 5-fold higher than non-effective treatment (18% vs. 4%),” he said in an interview.

Dr. Drager noted that studies of other single interventions such as physical exercise to reverse MS in patients with OSA also had modest results.

A researcher who studies the relationship between sleep, circadian rhythms, and metabolism commented that, although the patients in the CPAP group were compliant with the assigned equipment and had both reductions in apneic events and improvement in oxygen saturation, the effect of CPAP on the metabolic syndrome was rather small.

“The CPAP was doing what we thought it was supposed to do, but it didn’t have the magnitude of effect on the metabolic syndrome as I expected or I think as the authors expected,” said Deanna Arble, PhD, assistant professor of biological science at Marquette University, Milwaukee.

She noted that the study also failed to detect a significant improvement in the blood pressure component of metabolic syndrome.

“In my experience and my review of the literature, blood pressure tends to be the one that’s improved most dramatically with CPAP,” she said.

Dr. Arble was not involved in the study.

Study details

In the trial, titled TREATOSA-MS, the investigators enrolled 100 patients with a recent diagnosis of metabolic syndrome and moderate to severe OSA, defined as 15 or more apnea-hypopnea index events per hour. The patients were stratified by body mass index and then randomized to undergo therapeutic CPAP or to use nasal strips for 6 months.

At baseline and at the end of each intervention investigators measured anthropometric variables, blood pressure, glucose, and lipid profiles. They also leptin and adiponectin, body composition, food intake, physical activity, subcutaneous and abdominal fat (visceral and hepatic), and endothelial function to control for potential confounders.

As noted previously, they found that after 6 months “most patients with OSA randomized to CPAP retained the MS diagnosis, but the rate of MS reversibility was higher than observed in the placebo group.” The difference in metabolic syndrome reversal, 18% with CPAP versus 4% with nasal strips, translated into a hazard ratio favoring CPAP of 5.27 (P = .04).

Also as noted, in analyses adjusted for baseline values, CPAP did not significantly improve either weight, liver fat, lip profiles, or the adiposity biomarkers leptin and adiponectin, but did have “very modest” influence on reducing visceral fat and improving endothelial function.
 

Rigorous study

Dr. Arble said that most studies of the association between OSA and metabolic syndrome have focused on only one or two of the parameters that were included in the TREATOSA-MS study, giving the findings additional weight.

“This could potentially be a very good, carefully controlled first insight into how obstructive sleep apnea is related to the metabolic syndrome,” she said.

The study was funded by grants Fundação de Amparo Q22 à Pesquisa do Estado de São Paulo and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior. The authors and Dr. Arble reported having no conflicts of interest to disclose.

Continuous positive airway pressure (CPAP) may be only modestly effective for ameliorating metabolic syndrome in patients with moderate to severe obstructive sleep apnea (OSA).

That conclusion comes from investigators in a randomized controlled, trial, who found that, among 100 patients with OSA and a recent diagnosis of metabolic syndrome (MS), 18% of those assigned to use CPAP at night had a reversal of MS at 6 months of follow-up, compared with 4% of controls who were assigned to use nasal strips at night (P = .04).

The majority of patients assigned to CPAP still retained their MS diagnoses at 6 months, and CPAP did not significantly reduce individual components of the syndrome. Use of CPAP was, however, associated with small reductions in visceral fat and improvement in endothelial function, reported Sara Q.C. Giampa, PhD, from the University of São Paulo, and colleagues.

“Despite a significant rate of MS reversibility after CPAP therapy, most of the patients maintained the MS diagnosis. The modest effects of CPAP on MS reversibility underscore the need for combined therapy with CPAP, aiming to maximize metabolic syndrome recovery in parallel with improvements in OSA severity and related symptoms,” according to their study, reported in the journal CHEST^®.

Asked whether he still recommends CPAP to patients with OSA and the metabolic syndrome, given the findings, corresponding author Luciano F. Drager, MD, PhD, replied “yes, definitely.”

“Despite the modest rate in reversing metabolic syndrome after CPAP, the rate was 5-fold higher than non-effective treatment (18% vs. 4%),” he said in an interview.

Dr. Drager noted that studies of other single interventions such as physical exercise to reverse MS in patients with OSA also had modest results.

A researcher who studies the relationship between sleep, circadian rhythms, and metabolism commented that, although the patients in the CPAP group were compliant with the assigned equipment and had both reductions in apneic events and improvement in oxygen saturation, the effect of CPAP on the metabolic syndrome was rather small.

“The CPAP was doing what we thought it was supposed to do, but it didn’t have the magnitude of effect on the metabolic syndrome as I expected or I think as the authors expected,” said Deanna Arble, PhD, assistant professor of biological science at Marquette University, Milwaukee.

She noted that the study also failed to detect a significant improvement in the blood pressure component of metabolic syndrome.

“In my experience and my review of the literature, blood pressure tends to be the one that’s improved most dramatically with CPAP,” she said.

Dr. Arble was not involved in the study.

Study details

In the trial, titled TREATOSA-MS, the investigators enrolled 100 patients with a recent diagnosis of metabolic syndrome and moderate to severe OSA, defined as 15 or more apnea-hypopnea index events per hour. The patients were stratified by body mass index and then randomized to undergo therapeutic CPAP or to use nasal strips for 6 months.

At baseline and at the end of each intervention investigators measured anthropometric variables, blood pressure, glucose, and lipid profiles. They also leptin and adiponectin, body composition, food intake, physical activity, subcutaneous and abdominal fat (visceral and hepatic), and endothelial function to control for potential confounders.

As noted previously, they found that after 6 months “most patients with OSA randomized to CPAP retained the MS diagnosis, but the rate of MS reversibility was higher than observed in the placebo group.” The difference in metabolic syndrome reversal, 18% with CPAP versus 4% with nasal strips, translated into a hazard ratio favoring CPAP of 5.27 (P = .04).

Also as noted, in analyses adjusted for baseline values, CPAP did not significantly improve either weight, liver fat, lip profiles, or the adiposity biomarkers leptin and adiponectin, but did have “very modest” influence on reducing visceral fat and improving endothelial function.
 

Rigorous study

Dr. Arble said that most studies of the association between OSA and metabolic syndrome have focused on only one or two of the parameters that were included in the TREATOSA-MS study, giving the findings additional weight.

“This could potentially be a very good, carefully controlled first insight into how obstructive sleep apnea is related to the metabolic syndrome,” she said.

The study was funded by grants Fundação de Amparo Q22 à Pesquisa do Estado de São Paulo and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior. The authors and Dr. Arble reported having no conflicts of interest to disclose.