CAD & Atherosclerosis

Creators of a pilot program that educates preschoolers about good heart health have validated a template for successful early childhood intervention that, they claim, provides a pathway for translating scientific evidence into the community and classroom for educational purposes to encourage long-lasting lifestyle changes.

That validation supports the creators' plans to take the program into more schools.

They reported key lessons in crafting the program, known as the SI! Program (for Salud Integral-Comprehensive Health), online in the Journal of the American College of Cardiology.

Mount Sinai Hospital

“This is a research-based program that uses randomized clinical trial evidence with implementation strategies to design educational health promotion programs,” senior author Valentin Fuster, MD, PhD, founder and trustees chairman of the Foundation for Science, Health, and Education (SHE) based in Barcelona, under whose aegis the SI! Program was implemented, said in an interview. Dr. Fuster is also director of Mount Sinai Heart and physician-in-chief at Mount Sinai Hospital in New York, and general director of the National Center for Cardiovascular Investigation (CNIC) in Madrid, Spain’s equivalent of the National Heart, Lung, and Blood Institute.

“There are specific times in a child’s life when improvements can be made to enhance long-term cardiovascular health status,” said Rodrigo Fernández-Jiménez, MD, PhD, group leader of the cardiovascular health and imaging lab at CNIC and study coauthor. “Our review, and previous studies, suggest that 4-5 years of age is the most favorable time to start a school-based intervention focused on healthy habits.”

A key piece of the SI! Program used a Sesame Street character, known as Dr. Ruster, a Muppet based on Dr. Fuster, to introduce and convey most messages and activities to the preschool children. The program also used a heart-shaped mascot named “Cardio” to teach about healthy behaviors. Other components include video segments, a colorful storybook, an interactive board game, flash cards, and a teacher’s guide. The activities and messages were tailored based on the country in which the program was implemented.
 

A decade of experience

The review evaluated 10 years of experience with the preschool-based program, drawing upon cluster-randomized clinical trials of the program in three countries with different socioeconomic conditions: Colombia, Spain, and the United States. The studies randomized schools to receive the SI! Program for 4 months or to a control group and included more than 3,800 children from 50 schools, along with their parents or caregivers and teachers. The studies found significant increases in preschoolers’ knowledge, attitudes, and habits toward healthy eating and living an active lifestyle. Now, the SI! Program is expanding into more than 250 schools in Spain and more than 40 schools in all five boroughs of New York City.

“This is a multidimensional program,” Dr. Fuster said. The review identified five stages for implementing the program: dissemination; adoption; implementation; evaluation; and institutionalization.

Dissemination involves three substages for intervention: components, design, and strategy. With regard to the components, said Dr. Fuster, “We’re targeting children to educate them in four topics: how the body works; nutritional and dietary requirements; physical activity; and the need to control emotions – to say no in the future when they’re confronted with alcohol, drugs, and tobacco.”

Design involved a multidisciplinary team of experts to develop the intervention, Dr. Fuster said. The strategy itself enlists parents and teachers in the implementation, but goes beyond that. “This is a community,” Dr. Fuster said. Hence, the school environment and classroom itself are also engaged to support the message of the four topics.

Dr. Fuster said future research should look at knowledge, attitude, and habits and biological outcomes in children who’ve been in the SI! Program when they reach adolescence. “Our hypothesis is that we can do this in older children, but when they reach age 10 we want to reintervene in them,” Dr. Fuster said. “Humans need reintervention. Our findings don’t get into sustainability.” He added that further research should also identify socioeconomic factors that influence child health.

Expanding the program across the New York City’s five boroughs “offers a unique opportunity to explore which socioeconomic factors, at both the family and borough level, and may eventually affect children’s health, how they are implicated in the intervention’s effectiveness, and how they can be addressed to reduce the gap in health inequalities,” he said. 

Karalyn Kinsella, MD, a pediatrician affiliated with Yale New Haven (Conn.) Medical Center, noted the program’s multidimensional nature is an important element. “I think what is so important about this intervention is that it is not one single intervention but a curriculum that takes a significant amount of time (up to 50 hours) that allows for repetition of the information, which allows it to become remembered,” she said in an interview. “I also think incorporating families in the intervention is key as that is where change often has to happen.”

While she said the program may provide a template for a mental health curriculum, she added, “My concern is that teachers are already feeling overwhelmed and this may be viewed as another burden.”

The American Heart Association provided funding for the study in the United States. Dr Fernández-Jiménez has received funding from the Fondo de Investigación Sanitaria–Instituto de Salud Carlos III, which is cofunded by the European Regional Development Fund/European Social Fund. Dr. Fuster and Dr. Kinsella have no relevant disclosures.

Creators of a pilot program that educates preschoolers about good heart health have validated a template for successful early childhood intervention that, they claim, provides a pathway for translating scientific evidence into the community and classroom for educational purposes to encourage long-lasting lifestyle changes.

That validation supports the creators' plans to take the program into more schools.

They reported key lessons in crafting the program, known as the SI! Program (for Salud Integral-Comprehensive Health), online in the Journal of the American College of Cardiology.

Mount Sinai Hospital

“This is a research-based program that uses randomized clinical trial evidence with implementation strategies to design educational health promotion programs,” senior author Valentin Fuster, MD, PhD, founder and trustees chairman of the Foundation for Science, Health, and Education (SHE) based in Barcelona, under whose aegis the SI! Program was implemented, said in an interview. Dr. Fuster is also director of Mount Sinai Heart and physician-in-chief at Mount Sinai Hospital in New York, and general director of the National Center for Cardiovascular Investigation (CNIC) in Madrid, Spain’s equivalent of the National Heart, Lung, and Blood Institute.

“There are specific times in a child’s life when improvements can be made to enhance long-term cardiovascular health status,” said Rodrigo Fernández-Jiménez, MD, PhD, group leader of the cardiovascular health and imaging lab at CNIC and study coauthor. “Our review, and previous studies, suggest that 4-5 years of age is the most favorable time to start a school-based intervention focused on healthy habits.”

A key piece of the SI! Program used a Sesame Street character, known as Dr. Ruster, a Muppet based on Dr. Fuster, to introduce and convey most messages and activities to the preschool children. The program also used a heart-shaped mascot named “Cardio” to teach about healthy behaviors. Other components include video segments, a colorful storybook, an interactive board game, flash cards, and a teacher’s guide. The activities and messages were tailored based on the country in which the program was implemented.
 

A decade of experience

The review evaluated 10 years of experience with the preschool-based program, drawing upon cluster-randomized clinical trials of the program in three countries with different socioeconomic conditions: Colombia, Spain, and the United States. The studies randomized schools to receive the SI! Program for 4 months or to a control group and included more than 3,800 children from 50 schools, along with their parents or caregivers and teachers. The studies found significant increases in preschoolers’ knowledge, attitudes, and habits toward healthy eating and living an active lifestyle. Now, the SI! Program is expanding into more than 250 schools in Spain and more than 40 schools in all five boroughs of New York City.

“This is a multidimensional program,” Dr. Fuster said. The review identified five stages for implementing the program: dissemination; adoption; implementation; evaluation; and institutionalization.

Dissemination involves three substages for intervention: components, design, and strategy. With regard to the components, said Dr. Fuster, “We’re targeting children to educate them in four topics: how the body works; nutritional and dietary requirements; physical activity; and the need to control emotions – to say no in the future when they’re confronted with alcohol, drugs, and tobacco.”

Design involved a multidisciplinary team of experts to develop the intervention, Dr. Fuster said. The strategy itself enlists parents and teachers in the implementation, but goes beyond that. “This is a community,” Dr. Fuster said. Hence, the school environment and classroom itself are also engaged to support the message of the four topics.

Dr. Fuster said future research should look at knowledge, attitude, and habits and biological outcomes in children who’ve been in the SI! Program when they reach adolescence. “Our hypothesis is that we can do this in older children, but when they reach age 10 we want to reintervene in them,” Dr. Fuster said. “Humans need reintervention. Our findings don’t get into sustainability.” He added that further research should also identify socioeconomic factors that influence child health.

Expanding the program across the New York City’s five boroughs “offers a unique opportunity to explore which socioeconomic factors, at both the family and borough level, and may eventually affect children’s health, how they are implicated in the intervention’s effectiveness, and how they can be addressed to reduce the gap in health inequalities,” he said. 

Karalyn Kinsella, MD, a pediatrician affiliated with Yale New Haven (Conn.) Medical Center, noted the program’s multidimensional nature is an important element. “I think what is so important about this intervention is that it is not one single intervention but a curriculum that takes a significant amount of time (up to 50 hours) that allows for repetition of the information, which allows it to become remembered,” she said in an interview. “I also think incorporating families in the intervention is key as that is where change often has to happen.”

While she said the program may provide a template for a mental health curriculum, she added, “My concern is that teachers are already feeling overwhelmed and this may be viewed as another burden.”

The American Heart Association provided funding for the study in the United States. Dr Fernández-Jiménez has received funding from the Fondo de Investigación Sanitaria–Instituto de Salud Carlos III, which is cofunded by the European Regional Development Fund/European Social Fund. Dr. Fuster and Dr. Kinsella have no relevant disclosures.

Creators of a pilot program that educates preschoolers about good heart health have validated a template for successful early childhood intervention that, they claim, provides a pathway for translating scientific evidence into the community and classroom for educational purposes to encourage long-lasting lifestyle changes.

That validation supports the creators' plans to take the program into more schools.

They reported key lessons in crafting the program, known as the SI! Program (for Salud Integral-Comprehensive Health), online in the Journal of the American College of Cardiology.

Mount Sinai Hospital

“This is a research-based program that uses randomized clinical trial evidence with implementation strategies to design educational health promotion programs,” senior author Valentin Fuster, MD, PhD, founder and trustees chairman of the Foundation for Science, Health, and Education (SHE) based in Barcelona, under whose aegis the SI! Program was implemented, said in an interview. Dr. Fuster is also director of Mount Sinai Heart and physician-in-chief at Mount Sinai Hospital in New York, and general director of the National Center for Cardiovascular Investigation (CNIC) in Madrid, Spain’s equivalent of the National Heart, Lung, and Blood Institute.

“There are specific times in a child’s life when improvements can be made to enhance long-term cardiovascular health status,” said Rodrigo Fernández-Jiménez, MD, PhD, group leader of the cardiovascular health and imaging lab at CNIC and study coauthor. “Our review, and previous studies, suggest that 4-5 years of age is the most favorable time to start a school-based intervention focused on healthy habits.”

A key piece of the SI! Program used a Sesame Street character, known as Dr. Ruster, a Muppet based on Dr. Fuster, to introduce and convey most messages and activities to the preschool children. The program also used a heart-shaped mascot named “Cardio” to teach about healthy behaviors. Other components include video segments, a colorful storybook, an interactive board game, flash cards, and a teacher’s guide. The activities and messages were tailored based on the country in which the program was implemented.
 

A decade of experience

The review evaluated 10 years of experience with the preschool-based program, drawing upon cluster-randomized clinical trials of the program in three countries with different socioeconomic conditions: Colombia, Spain, and the United States. The studies randomized schools to receive the SI! Program for 4 months or to a control group and included more than 3,800 children from 50 schools, along with their parents or caregivers and teachers. The studies found significant increases in preschoolers’ knowledge, attitudes, and habits toward healthy eating and living an active lifestyle. Now, the SI! Program is expanding into more than 250 schools in Spain and more than 40 schools in all five boroughs of New York City.

“This is a multidimensional program,” Dr. Fuster said. The review identified five stages for implementing the program: dissemination; adoption; implementation; evaluation; and institutionalization.

Dissemination involves three substages for intervention: components, design, and strategy. With regard to the components, said Dr. Fuster, “We’re targeting children to educate them in four topics: how the body works; nutritional and dietary requirements; physical activity; and the need to control emotions – to say no in the future when they’re confronted with alcohol, drugs, and tobacco.”

Design involved a multidisciplinary team of experts to develop the intervention, Dr. Fuster said. The strategy itself enlists parents and teachers in the implementation, but goes beyond that. “This is a community,” Dr. Fuster said. Hence, the school environment and classroom itself are also engaged to support the message of the four topics.

Dr. Fuster said future research should look at knowledge, attitude, and habits and biological outcomes in children who’ve been in the SI! Program when they reach adolescence. “Our hypothesis is that we can do this in older children, but when they reach age 10 we want to reintervene in them,” Dr. Fuster said. “Humans need reintervention. Our findings don’t get into sustainability.” He added that further research should also identify socioeconomic factors that influence child health.

Expanding the program across the New York City’s five boroughs “offers a unique opportunity to explore which socioeconomic factors, at both the family and borough level, and may eventually affect children’s health, how they are implicated in the intervention’s effectiveness, and how they can be addressed to reduce the gap in health inequalities,” he said. 

Karalyn Kinsella, MD, a pediatrician affiliated with Yale New Haven (Conn.) Medical Center, noted the program’s multidimensional nature is an important element. “I think what is so important about this intervention is that it is not one single intervention but a curriculum that takes a significant amount of time (up to 50 hours) that allows for repetition of the information, which allows it to become remembered,” she said in an interview. “I also think incorporating families in the intervention is key as that is where change often has to happen.”

While she said the program may provide a template for a mental health curriculum, she added, “My concern is that teachers are already feeling overwhelmed and this may be viewed as another burden.”

The American Heart Association provided funding for the study in the United States. Dr Fernández-Jiménez has received funding from the Fondo de Investigación Sanitaria–Instituto de Salud Carlos III, which is cofunded by the European Regional Development Fund/European Social Fund. Dr. Fuster and Dr. Kinsella have no relevant disclosures.

Scientific achievements usually raise big new questions, and the remarkable surgery that took place on Jan. 7, when Maryland resident David Bennett was transplanted with a genetically modified heart from a pig, has been no different.

The 57-year-old with end-stage heart failure had been repeatedly turned down for a standard transplant and was judged a poor candidate for a ventricular assist device. Now his new heart is beating soundly and apparently accepted by his immune system as Mr. Bennett, his physicians at the University of Maryland where the procedure took place, and indeed the world set out on a journey with far more unknowns than knowns.

University of Maryland Medical Center

“I think even just a couple of years ago, people felt that xenotransplantation for the heart and other organs was still a long way off. And it seems like it’s started to move very quickly,” Larry A. Allen, MD, University of Colorado, Aurora, said in an interview.

Demand for donor hearts far outstrips supply, and despite advances in the development of ventricular assist pumps and artificial hearts, “there are still significant limitations to them in terms of clotting, stroke, and infection. We’ve seen the use of those devices plateau,” Dr. Allen said. “So, the concept of a nonhuman source of organs is exciting and very much in need, if people can get it to work.”

“I really credit the surgeons at the University of Maryland for courageous clinical work and a brilliant scientific innovation,” Clyde W. Yancy, MD, MSc, Northwestern University, Chicago, said in an interview. “But it’s always in the implementation that we have to hold our breath.” Heart xenotransplantation is an old idea that “has never before been successful,” he said. And standard heart transplantation has set a high bar, with a 1-year survival of about 90% and low 1-year risk for rejection. Whether the new procedure can meet that standard is unknown, as is its potential for complications, such as chronic rejection or cancers due to long-term immunosuppression. Those are “major questions requiring more time and careful follow-up.”

‘Still a nascent technology’

“This is an exciting and courageous step forward in heart transplantation, and kudos to the team at the University of Maryland,” said Mandeep R. Mehra, MD, Brigham and Woman’s Hospital, Boston. But “there are many challenges here.”

University of Maryland Medical Center

The procedure’s 10 gene modifications were reportedly aimed at preventing hyperacute rejection of the heart and its excessive growth after transplantation, and making the organ less immunogenic, Dr. Mehra said in an interview. But even if those goals are met, could the same changes potentially impede the heart’s adaptation to human physiology, such as during ambulation or stress?

That kind of adaptation may become important. For example, Dr. Mehra observed, normally a pig heart “provides flow in a four-footed configuration, and pig temperature is inherently higher than humans by several degrees, so it will be functioning in a relatively hypothermic environment.”

Transplantation remains the gold standard for patients with advanced heart failure despite modern medical and device therapy, Dr. Allen agreed. But “if we can raise pig hearts that provide the organ, and it can be implanted with a surgery that’s been done for 50 years, and rejection can be managed with gene editing and tailored immunosuppression, then it’s not hard to think about this very rapidly replacing a lot of what we do in the advanced heart failure and transplantation world.”

Certainly, it would be a major advance if the gene editing technique successfully improves the heart’s immunologic compatibility, Dr. Yancy noted. But do we have enough genomic knowledge to select gene deletions and insertions in the safest way for a successful outcome? “We have to appreciate that this is still a nascent technology, and we should be careful that there might be consequences that we haven’t anticipated.”

For example, he said, the xenotransplantation and gene-modifying techniques should be explored in a range of patients, including older and younger people, women and men, and people of different ethnicities and races.

“There may be some differences based on ancestry, based on gender, based on aging, that will influence the way in which these engineered donor hearts are experienced clinically,” Dr. Yancy said.

The xenotransplantation technique’s potential impact on health equity should also be considered, as it “almost assuredly will be a very expensive technology that will be utilized in a very select population,” he noted. “We need to have a really wide lens to think about all of the potential ramifications.”
 

‘This field needs to evolve’

Dr. Mehra also flagged the procedure’s potential cost should it become mainstream. Perhaps that would promote dialogue on how to primarily use it “after legitimately exhausting all available options, such as total artificial heart support.”

It might also teach the field to take greater advantage of the many donated hearts discarded as suboptimal. “The general usage rate for offered organs is around a third,” despite opportunities to expand use of those that are “less than perfect,” Dr. Mehra said. “I think that the field will grow with the community focusing on reduced discards of current available heart organs, and not necessarily grow because of the availability of ‘xeno-organs.’ ”

“This field needs to evolve because we’re actively transplanting patients today. But in my mind, the real future is to have such a sufficient understanding of the biology of left ventricular dysfunction that transplantation is a rare event,” Dr. Yancy proposed.

“I’m not certain that heart transplantation per se is the endgame. I think the avoidance of transplantation is the real endgame,” he said. “This may be controversial, but my vision of the future is not one where we have a supply of animals that we can use for transplantation. My vision of the future is that heart transplantation becomes obsolete.”

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

Scientific achievements usually raise big new questions, and the remarkable surgery that took place on Jan. 7, when Maryland resident David Bennett was transplanted with a genetically modified heart from a pig, has been no different.

The 57-year-old with end-stage heart failure had been repeatedly turned down for a standard transplant and was judged a poor candidate for a ventricular assist device. Now his new heart is beating soundly and apparently accepted by his immune system as Mr. Bennett, his physicians at the University of Maryland where the procedure took place, and indeed the world set out on a journey with far more unknowns than knowns.

University of Maryland Medical Center

“I think even just a couple of years ago, people felt that xenotransplantation for the heart and other organs was still a long way off. And it seems like it’s started to move very quickly,” Larry A. Allen, MD, University of Colorado, Aurora, said in an interview.

Demand for donor hearts far outstrips supply, and despite advances in the development of ventricular assist pumps and artificial hearts, “there are still significant limitations to them in terms of clotting, stroke, and infection. We’ve seen the use of those devices plateau,” Dr. Allen said. “So, the concept of a nonhuman source of organs is exciting and very much in need, if people can get it to work.”

“I really credit the surgeons at the University of Maryland for courageous clinical work and a brilliant scientific innovation,” Clyde W. Yancy, MD, MSc, Northwestern University, Chicago, said in an interview. “But it’s always in the implementation that we have to hold our breath.” Heart xenotransplantation is an old idea that “has never before been successful,” he said. And standard heart transplantation has set a high bar, with a 1-year survival of about 90% and low 1-year risk for rejection. Whether the new procedure can meet that standard is unknown, as is its potential for complications, such as chronic rejection or cancers due to long-term immunosuppression. Those are “major questions requiring more time and careful follow-up.”

‘Still a nascent technology’

“This is an exciting and courageous step forward in heart transplantation, and kudos to the team at the University of Maryland,” said Mandeep R. Mehra, MD, Brigham and Woman’s Hospital, Boston. But “there are many challenges here.”

University of Maryland Medical Center

The procedure’s 10 gene modifications were reportedly aimed at preventing hyperacute rejection of the heart and its excessive growth after transplantation, and making the organ less immunogenic, Dr. Mehra said in an interview. But even if those goals are met, could the same changes potentially impede the heart’s adaptation to human physiology, such as during ambulation or stress?

That kind of adaptation may become important. For example, Dr. Mehra observed, normally a pig heart “provides flow in a four-footed configuration, and pig temperature is inherently higher than humans by several degrees, so it will be functioning in a relatively hypothermic environment.”

Transplantation remains the gold standard for patients with advanced heart failure despite modern medical and device therapy, Dr. Allen agreed. But “if we can raise pig hearts that provide the organ, and it can be implanted with a surgery that’s been done for 50 years, and rejection can be managed with gene editing and tailored immunosuppression, then it’s not hard to think about this very rapidly replacing a lot of what we do in the advanced heart failure and transplantation world.”

Certainly, it would be a major advance if the gene editing technique successfully improves the heart’s immunologic compatibility, Dr. Yancy noted. But do we have enough genomic knowledge to select gene deletions and insertions in the safest way for a successful outcome? “We have to appreciate that this is still a nascent technology, and we should be careful that there might be consequences that we haven’t anticipated.”

For example, he said, the xenotransplantation and gene-modifying techniques should be explored in a range of patients, including older and younger people, women and men, and people of different ethnicities and races.

“There may be some differences based on ancestry, based on gender, based on aging, that will influence the way in which these engineered donor hearts are experienced clinically,” Dr. Yancy said.

The xenotransplantation technique’s potential impact on health equity should also be considered, as it “almost assuredly will be a very expensive technology that will be utilized in a very select population,” he noted. “We need to have a really wide lens to think about all of the potential ramifications.”
 

‘This field needs to evolve’

Dr. Mehra also flagged the procedure’s potential cost should it become mainstream. Perhaps that would promote dialogue on how to primarily use it “after legitimately exhausting all available options, such as total artificial heart support.”

It might also teach the field to take greater advantage of the many donated hearts discarded as suboptimal. “The general usage rate for offered organs is around a third,” despite opportunities to expand use of those that are “less than perfect,” Dr. Mehra said. “I think that the field will grow with the community focusing on reduced discards of current available heart organs, and not necessarily grow because of the availability of ‘xeno-organs.’ ”

“This field needs to evolve because we’re actively transplanting patients today. But in my mind, the real future is to have such a sufficient understanding of the biology of left ventricular dysfunction that transplantation is a rare event,” Dr. Yancy proposed.

“I’m not certain that heart transplantation per se is the endgame. I think the avoidance of transplantation is the real endgame,” he said. “This may be controversial, but my vision of the future is not one where we have a supply of animals that we can use for transplantation. My vision of the future is that heart transplantation becomes obsolete.”

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

Scientific achievements usually raise big new questions, and the remarkable surgery that took place on Jan. 7, when Maryland resident David Bennett was transplanted with a genetically modified heart from a pig, has been no different.

The 57-year-old with end-stage heart failure had been repeatedly turned down for a standard transplant and was judged a poor candidate for a ventricular assist device. Now his new heart is beating soundly and apparently accepted by his immune system as Mr. Bennett, his physicians at the University of Maryland where the procedure took place, and indeed the world set out on a journey with far more unknowns than knowns.

University of Maryland Medical Center

“I think even just a couple of years ago, people felt that xenotransplantation for the heart and other organs was still a long way off. And it seems like it’s started to move very quickly,” Larry A. Allen, MD, University of Colorado, Aurora, said in an interview.

Demand for donor hearts far outstrips supply, and despite advances in the development of ventricular assist pumps and artificial hearts, “there are still significant limitations to them in terms of clotting, stroke, and infection. We’ve seen the use of those devices plateau,” Dr. Allen said. “So, the concept of a nonhuman source of organs is exciting and very much in need, if people can get it to work.”

“I really credit the surgeons at the University of Maryland for courageous clinical work and a brilliant scientific innovation,” Clyde W. Yancy, MD, MSc, Northwestern University, Chicago, said in an interview. “But it’s always in the implementation that we have to hold our breath.” Heart xenotransplantation is an old idea that “has never before been successful,” he said. And standard heart transplantation has set a high bar, with a 1-year survival of about 90% and low 1-year risk for rejection. Whether the new procedure can meet that standard is unknown, as is its potential for complications, such as chronic rejection or cancers due to long-term immunosuppression. Those are “major questions requiring more time and careful follow-up.”

‘Still a nascent technology’

“This is an exciting and courageous step forward in heart transplantation, and kudos to the team at the University of Maryland,” said Mandeep R. Mehra, MD, Brigham and Woman’s Hospital, Boston. But “there are many challenges here.”

University of Maryland Medical Center

The procedure’s 10 gene modifications were reportedly aimed at preventing hyperacute rejection of the heart and its excessive growth after transplantation, and making the organ less immunogenic, Dr. Mehra said in an interview. But even if those goals are met, could the same changes potentially impede the heart’s adaptation to human physiology, such as during ambulation or stress?

That kind of adaptation may become important. For example, Dr. Mehra observed, normally a pig heart “provides flow in a four-footed configuration, and pig temperature is inherently higher than humans by several degrees, so it will be functioning in a relatively hypothermic environment.”

Transplantation remains the gold standard for patients with advanced heart failure despite modern medical and device therapy, Dr. Allen agreed. But “if we can raise pig hearts that provide the organ, and it can be implanted with a surgery that’s been done for 50 years, and rejection can be managed with gene editing and tailored immunosuppression, then it’s not hard to think about this very rapidly replacing a lot of what we do in the advanced heart failure and transplantation world.”

Certainly, it would be a major advance if the gene editing technique successfully improves the heart’s immunologic compatibility, Dr. Yancy noted. But do we have enough genomic knowledge to select gene deletions and insertions in the safest way for a successful outcome? “We have to appreciate that this is still a nascent technology, and we should be careful that there might be consequences that we haven’t anticipated.”

For example, he said, the xenotransplantation and gene-modifying techniques should be explored in a range of patients, including older and younger people, women and men, and people of different ethnicities and races.

“There may be some differences based on ancestry, based on gender, based on aging, that will influence the way in which these engineered donor hearts are experienced clinically,” Dr. Yancy said.

The xenotransplantation technique’s potential impact on health equity should also be considered, as it “almost assuredly will be a very expensive technology that will be utilized in a very select population,” he noted. “We need to have a really wide lens to think about all of the potential ramifications.”
 

‘This field needs to evolve’

Dr. Mehra also flagged the procedure’s potential cost should it become mainstream. Perhaps that would promote dialogue on how to primarily use it “after legitimately exhausting all available options, such as total artificial heart support.”

It might also teach the field to take greater advantage of the many donated hearts discarded as suboptimal. “The general usage rate for offered organs is around a third,” despite opportunities to expand use of those that are “less than perfect,” Dr. Mehra said. “I think that the field will grow with the community focusing on reduced discards of current available heart organs, and not necessarily grow because of the availability of ‘xeno-organs.’ ”

“This field needs to evolve because we’re actively transplanting patients today. But in my mind, the real future is to have such a sufficient understanding of the biology of left ventricular dysfunction that transplantation is a rare event,” Dr. Yancy proposed.

“I’m not certain that heart transplantation per se is the endgame. I think the avoidance of transplantation is the real endgame,” he said. “This may be controversial, but my vision of the future is not one where we have a supply of animals that we can use for transplantation. My vision of the future is that heart transplantation becomes obsolete.”

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

Having specific health issues, including depressive symptoms and cardiovascular disease, as a middle-aged woman was associated with experiencing clinically important declines in health later in life, a new study finds.

The most predictive parameters of poorer health at age 65 were cardiovascular disease, clinically significant depressive symptoms, and current smoking. Osteoarthritis, lower education level, and higher body mass index (BMI) also were associated with poorer health status 10 years on, Daniel H. Solomon, MD, MPH and colleagues wrote in their observational study, which was published in JAMA Network Open.

Determining a patient’s score on a health-related quality of life measure based on these variables might be useful in clinical practice to recognize midlife patients at increased risk for later health deterioration, Dr. Solomon, of the division of rheumatology, inflammation, and immunity at Brigham and Women’s Hospital, Boston, said in a statement. This measure is called the Short Form 36 (SF-36), and the researchers specifically focused on the physical component summary score (PCS) of this measure. The SF-36 is similar to the Framingham 10-year coronary heart disease risk prediction score, according to Dr. Solomon, who is a professor of medicine at Harvard Medical School, also in Boston.

Based on their risk scores, women could preemptively target modifiable risk factors before they enter old age, the investigators wrote.

“Age 55-65 may be a critical decade. A person’s health and factors during this period may set them on a path for their later adult years,” Dr. Solomon said in a statement. “The good news is that a large proportion of women at midlife are very stable and will not go on to experience declines. But being able to identify women at higher risk could help lead to interventions targeted to them.”
 

Study details

The study included a cohort of 1,091 women drawn from the 3,302-participant Study of Women’s Health Across the Nation (SWAN), a racially and ethnically diverse group enrolled from six U.S. sites at or immediately before transition to menopause and followed for 10 years from age 55 to 65. The study sample, consisting of 24.6% Black, 24% Japanese or Chinese, and 51.9% White, had a median baseline age of 54.8 years and median BMI of 27 kg/m² at entry. The median baseline PCS score was 53.1 (interquartile range, 46.8-56.7).

Over 10 years, 206 (18.9%) of the women in the study experienced clinically important declines of at least 8 points in baseline characteristics at around age 55. The following were significantly associated with these declines:

• Having a higher BMI.
• Having osteoarthritis.
• Having a lower educational level.
• Being a current smoker.
• Having clinically significant depressive symptoms.
• Having cardiovascular disease.
• Having better (or higher) physical health and function score on the PCS.

The association between a higher PCS score and a greater decline might seem like an anomaly, Dr. Solomon said in an interview, but one interpretation of this finding is that women with higher or better scores at baseline have further to fall once other risk factors take effect.

With data analyzed from October 2020 to March 2021, the median 10-year change in PCS was –1.02 points, but 206 women experienced declines of 8 points or more.

Those with health declines were more likely to be Black and less likely to be Japanese. They were also more likely to have other comorbidities such as diabetes, hypertension, and osteoporosis, and to report less physical activity.
 

Scoring system should not replace individualized evaluation, outside expert said

Commenting on the findings, Margaret J. Nachtigall, MD, a clinical associate professor in the department of obstetrics and gynecology at New York University Langone Health, cautioned that a generalized scoring system should not replace individualized evaluation of women at midlife.

“I assess women around age 55 on a daily basis for health risk factors going forward. And while a number such as BMI can be helpful, I worry that reliance on a score could miss treating the individual,” Dr. Nachtigall said an interview. For instance, one woman might have a high BMI owing to greater muscle mass, which is heavy, while another may have a lower BMI but more fat-related weight, as well as exacerbating conditions such as hypertension that would elevate her risk. “You have to make the calculation for each person.”

Dr. Nachtigall, who was not involved in the SWAN analysis, noted, however, that a big-data scoring system might be a useful adjunct to individual patient evaluation in that “it would make physicians look at all these many risk factors to identify those prone to decline.”
 

Study includes racially diverse population

According to the authors, while other studies have identified similar and other risk factors such as poor sleep, most have not included such a racially diverse population and have focused on women already in their senior years when the window of opportunity may already have closed.

“As a clinician and epidemiologist, I often think about the window of opportunity at midlife, when people are vital, engaged, and resilient,” said Dr. Solomon in the statement. “If we can identify risk factors and determine who is at risk, we may be able to find interventions that can stave off health declines and help put people on a better health trajectory.”

Eric M. Ascher, DO, who practices family medicine at Lenox Hill Hospital in New York and was not involved in the SWAN research, agreed with Dr. Solomon.

“Doctors who treat chronic conditions often meet patients when they are already suffering from a medical problem,” he said in an interview. “It is key to decrease your risk factors before it is too late.”

Dr. Ascher added that many primary care providers already rely heavily on scoring systems when determining level of risk and type of intervention. “Any additional risk factor-scoring systems that are easy to implement and will prevent chronic diseases would be something providers would want to use with their patients.”

Detailed analyses of larger at-risk populations are needed to validate these risk factors and identify others, the authors said.

SWAN is supported by the National Institute on Aging, the National Institute of Nursing Research, and the National Institutes of Heath’s Office of Research on Women’s Health. Dr. Solomon reported financial ties to Amgen, AbbVie and Moderna, UpToDate, and Arthritis & Rheumatology; as well as serving on the board of directors for the Childhood Arthritis and Rheumatology Research Alliance and an advisory committee for the Food and Drug Administration outside of this work. Dr. Nachtigall and Dr. Ascher disclosed no conflicts of interest with regard to their comments.

Having specific health issues, including depressive symptoms and cardiovascular disease, as a middle-aged woman was associated with experiencing clinically important declines in health later in life, a new study finds.

The most predictive parameters of poorer health at age 65 were cardiovascular disease, clinically significant depressive symptoms, and current smoking. Osteoarthritis, lower education level, and higher body mass index (BMI) also were associated with poorer health status 10 years on, Daniel H. Solomon, MD, MPH and colleagues wrote in their observational study, which was published in JAMA Network Open.

Determining a patient’s score on a health-related quality of life measure based on these variables might be useful in clinical practice to recognize midlife patients at increased risk for later health deterioration, Dr. Solomon, of the division of rheumatology, inflammation, and immunity at Brigham and Women’s Hospital, Boston, said in a statement. This measure is called the Short Form 36 (SF-36), and the researchers specifically focused on the physical component summary score (PCS) of this measure. The SF-36 is similar to the Framingham 10-year coronary heart disease risk prediction score, according to Dr. Solomon, who is a professor of medicine at Harvard Medical School, also in Boston.

Based on their risk scores, women could preemptively target modifiable risk factors before they enter old age, the investigators wrote.

“Age 55-65 may be a critical decade. A person’s health and factors during this period may set them on a path for their later adult years,” Dr. Solomon said in a statement. “The good news is that a large proportion of women at midlife are very stable and will not go on to experience declines. But being able to identify women at higher risk could help lead to interventions targeted to them.”
 

Study details

The study included a cohort of 1,091 women drawn from the 3,302-participant Study of Women’s Health Across the Nation (SWAN), a racially and ethnically diverse group enrolled from six U.S. sites at or immediately before transition to menopause and followed for 10 years from age 55 to 65. The study sample, consisting of 24.6% Black, 24% Japanese or Chinese, and 51.9% White, had a median baseline age of 54.8 years and median BMI of 27 kg/m² at entry. The median baseline PCS score was 53.1 (interquartile range, 46.8-56.7).

Over 10 years, 206 (18.9%) of the women in the study experienced clinically important declines of at least 8 points in baseline characteristics at around age 55. The following were significantly associated with these declines:

• Having a higher BMI.
• Having osteoarthritis.
• Having a lower educational level.
• Being a current smoker.
• Having clinically significant depressive symptoms.
• Having cardiovascular disease.
• Having better (or higher) physical health and function score on the PCS.

The association between a higher PCS score and a greater decline might seem like an anomaly, Dr. Solomon said in an interview, but one interpretation of this finding is that women with higher or better scores at baseline have further to fall once other risk factors take effect.

With data analyzed from October 2020 to March 2021, the median 10-year change in PCS was –1.02 points, but 206 women experienced declines of 8 points or more.

Those with health declines were more likely to be Black and less likely to be Japanese. They were also more likely to have other comorbidities such as diabetes, hypertension, and osteoporosis, and to report less physical activity.
 

Scoring system should not replace individualized evaluation, outside expert said

Commenting on the findings, Margaret J. Nachtigall, MD, a clinical associate professor in the department of obstetrics and gynecology at New York University Langone Health, cautioned that a generalized scoring system should not replace individualized evaluation of women at midlife.

“I assess women around age 55 on a daily basis for health risk factors going forward. And while a number such as BMI can be helpful, I worry that reliance on a score could miss treating the individual,” Dr. Nachtigall said an interview. For instance, one woman might have a high BMI owing to greater muscle mass, which is heavy, while another may have a lower BMI but more fat-related weight, as well as exacerbating conditions such as hypertension that would elevate her risk. “You have to make the calculation for each person.”

Dr. Nachtigall, who was not involved in the SWAN analysis, noted, however, that a big-data scoring system might be a useful adjunct to individual patient evaluation in that “it would make physicians look at all these many risk factors to identify those prone to decline.”
 

Study includes racially diverse population

According to the authors, while other studies have identified similar and other risk factors such as poor sleep, most have not included such a racially diverse population and have focused on women already in their senior years when the window of opportunity may already have closed.

“As a clinician and epidemiologist, I often think about the window of opportunity at midlife, when people are vital, engaged, and resilient,” said Dr. Solomon in the statement. “If we can identify risk factors and determine who is at risk, we may be able to find interventions that can stave off health declines and help put people on a better health trajectory.”

Eric M. Ascher, DO, who practices family medicine at Lenox Hill Hospital in New York and was not involved in the SWAN research, agreed with Dr. Solomon.

“Doctors who treat chronic conditions often meet patients when they are already suffering from a medical problem,” he said in an interview. “It is key to decrease your risk factors before it is too late.”

Dr. Ascher added that many primary care providers already rely heavily on scoring systems when determining level of risk and type of intervention. “Any additional risk factor-scoring systems that are easy to implement and will prevent chronic diseases would be something providers would want to use with their patients.”

Detailed analyses of larger at-risk populations are needed to validate these risk factors and identify others, the authors said.

SWAN is supported by the National Institute on Aging, the National Institute of Nursing Research, and the National Institutes of Heath’s Office of Research on Women’s Health. Dr. Solomon reported financial ties to Amgen, AbbVie and Moderna, UpToDate, and Arthritis & Rheumatology; as well as serving on the board of directors for the Childhood Arthritis and Rheumatology Research Alliance and an advisory committee for the Food and Drug Administration outside of this work. Dr. Nachtigall and Dr. Ascher disclosed no conflicts of interest with regard to their comments.

Having specific health issues, including depressive symptoms and cardiovascular disease, as a middle-aged woman was associated with experiencing clinically important declines in health later in life, a new study finds.

The most predictive parameters of poorer health at age 65 were cardiovascular disease, clinically significant depressive symptoms, and current smoking. Osteoarthritis, lower education level, and higher body mass index (BMI) also were associated with poorer health status 10 years on, Daniel H. Solomon, MD, MPH and colleagues wrote in their observational study, which was published in JAMA Network Open.

Determining a patient’s score on a health-related quality of life measure based on these variables might be useful in clinical practice to recognize midlife patients at increased risk for later health deterioration, Dr. Solomon, of the division of rheumatology, inflammation, and immunity at Brigham and Women’s Hospital, Boston, said in a statement. This measure is called the Short Form 36 (SF-36), and the researchers specifically focused on the physical component summary score (PCS) of this measure. The SF-36 is similar to the Framingham 10-year coronary heart disease risk prediction score, according to Dr. Solomon, who is a professor of medicine at Harvard Medical School, also in Boston.

Based on their risk scores, women could preemptively target modifiable risk factors before they enter old age, the investigators wrote.

“Age 55-65 may be a critical decade. A person’s health and factors during this period may set them on a path for their later adult years,” Dr. Solomon said in a statement. “The good news is that a large proportion of women at midlife are very stable and will not go on to experience declines. But being able to identify women at higher risk could help lead to interventions targeted to them.”
 

Study details

The study included a cohort of 1,091 women drawn from the 3,302-participant Study of Women’s Health Across the Nation (SWAN), a racially and ethnically diverse group enrolled from six U.S. sites at or immediately before transition to menopause and followed for 10 years from age 55 to 65. The study sample, consisting of 24.6% Black, 24% Japanese or Chinese, and 51.9% White, had a median baseline age of 54.8 years and median BMI of 27 kg/m² at entry. The median baseline PCS score was 53.1 (interquartile range, 46.8-56.7).

Over 10 years, 206 (18.9%) of the women in the study experienced clinically important declines of at least 8 points in baseline characteristics at around age 55. The following were significantly associated with these declines:

• Having a higher BMI.
• Having osteoarthritis.
• Having a lower educational level.
• Being a current smoker.
• Having clinically significant depressive symptoms.
• Having cardiovascular disease.
• Having better (or higher) physical health and function score on the PCS.

The association between a higher PCS score and a greater decline might seem like an anomaly, Dr. Solomon said in an interview, but one interpretation of this finding is that women with higher or better scores at baseline have further to fall once other risk factors take effect.

With data analyzed from October 2020 to March 2021, the median 10-year change in PCS was –1.02 points, but 206 women experienced declines of 8 points or more.

Those with health declines were more likely to be Black and less likely to be Japanese. They were also more likely to have other comorbidities such as diabetes, hypertension, and osteoporosis, and to report less physical activity.
 

Scoring system should not replace individualized evaluation, outside expert said

Commenting on the findings, Margaret J. Nachtigall, MD, a clinical associate professor in the department of obstetrics and gynecology at New York University Langone Health, cautioned that a generalized scoring system should not replace individualized evaluation of women at midlife.

“I assess women around age 55 on a daily basis for health risk factors going forward. And while a number such as BMI can be helpful, I worry that reliance on a score could miss treating the individual,” Dr. Nachtigall said an interview. For instance, one woman might have a high BMI owing to greater muscle mass, which is heavy, while another may have a lower BMI but more fat-related weight, as well as exacerbating conditions such as hypertension that would elevate her risk. “You have to make the calculation for each person.”

Dr. Nachtigall, who was not involved in the SWAN analysis, noted, however, that a big-data scoring system might be a useful adjunct to individual patient evaluation in that “it would make physicians look at all these many risk factors to identify those prone to decline.”
 

Study includes racially diverse population

According to the authors, while other studies have identified similar and other risk factors such as poor sleep, most have not included such a racially diverse population and have focused on women already in their senior years when the window of opportunity may already have closed.

“As a clinician and epidemiologist, I often think about the window of opportunity at midlife, when people are vital, engaged, and resilient,” said Dr. Solomon in the statement. “If we can identify risk factors and determine who is at risk, we may be able to find interventions that can stave off health declines and help put people on a better health trajectory.”

Eric M. Ascher, DO, who practices family medicine at Lenox Hill Hospital in New York and was not involved in the SWAN research, agreed with Dr. Solomon.

“Doctors who treat chronic conditions often meet patients when they are already suffering from a medical problem,” he said in an interview. “It is key to decrease your risk factors before it is too late.”

Dr. Ascher added that many primary care providers already rely heavily on scoring systems when determining level of risk and type of intervention. “Any additional risk factor-scoring systems that are easy to implement and will prevent chronic diseases would be something providers would want to use with their patients.”

Detailed analyses of larger at-risk populations are needed to validate these risk factors and identify others, the authors said.

SWAN is supported by the National Institute on Aging, the National Institute of Nursing Research, and the National Institutes of Heath’s Office of Research on Women’s Health. Dr. Solomon reported financial ties to Amgen, AbbVie and Moderna, UpToDate, and Arthritis & Rheumatology; as well as serving on the board of directors for the Childhood Arthritis and Rheumatology Research Alliance and an advisory committee for the Food and Drug Administration outside of this work. Dr. Nachtigall and Dr. Ascher disclosed no conflicts of interest with regard to their comments.

The damage to the heart caused by a myocardial infarction is not just a result of ischemia caused by the blocked artery but is also brought about by bleeding in the myocardium after the artery has been opened, a new study suggests.

This observation is leading to new approaches to limiting infarct size and treating MI.

“In MI treatment, we have always focused on opening up the artery as quickly as possible to limit the myocardial damage caused by ischemia,” the study’s senior author, Rohan Dharmakumar, PhD, Indiana University, Indianapolis, told this news organization.

“We are pursuing a completely new approach focusing on limiting the damage after revascularization,” he said. “We are totally rethinking what a myocardial infarction is – what causes the injury and the time course of the injury – our results suggest that it’s not just ischemic damage and a lot of the harm is caused by hemorrhage after reperfusion.”

It has been known for many years that hemorrhage is often seen in the myocardium in large MIs, but it has not been established before now whether it contributes to the injury or not, Dr. Dharmakumar explained.

“This study was done to look at that – and we found that the hemorrhage drives a second layer of injury on top of the ischemia.”

Dr. Dharmakumar said this hemorrhage is part of the phenomenon known as reperfusion injury. “This has been known to exist for many years, but we haven’t fully understood all the factors contributing to it. Our results suggest that hemorrhage is a major component of reperfusion injury – probably the dominant factor,” he said.  

The researchers are now working on therapeutic approaches to try to prevent this hemorrhage and/or to minimize its effect.

“We are studying how hemorrhage drives damage and how to block these biological processes,” Dr. Dharmakumar said. “Our studies suggest that hemorrhage could account for up to half of the damage caused by a myocardial infarction. If we can limit that, we should be able to reduce the size of the infarct and this should translate into better long-term outcomes.

“I’m very excited about these results,” he added. “We are already seeing a remarkable improvement in animal models with some of the potential therapeutic approaches we are working on.”

The current study is published in the January 2022 issue of the Journal of the American College of Cardiology (JACC).

The authors explain that it is now recognized that reperfusion injury can contribute to increasing infarct size, which they refer to as “infarct surge.” Previous studies have also shown that reperfusion injury can contribute to as much as 50% of the final infarct size, but the factors contributing to the observed variability are not known, and previous attempts to limit infarct surge from reperfusion injury have failed.

They noted that after reperfusion, microvessels can remain obstructed, resulting in intramyocardial hemorrhage. They conducted the current study to investigate whether such hemorrhage causes expansion of the infarct.

They studied 70 patients with ST-segment elevation MI who were categorized with cardiovascular MRI to have intramyocardial hemorrhage or not following primary PCI, and for whom serial cardiac troponin measures were used to assess infarct size.

Results showed that while troponin levels were not different before reperfusion, patients with intramyocardial hemorrhage had significantly higher cardiac troponin levels after reperfusion and these levels peaked earlier than in patients without hemorrhage.

In animal models, those with intramyocardial hemorrhage had a more rapid expansion of myocardial necrosis than did those without hemorrhage, and within 72 hours of reperfusion, a fourfold greater loss in salvageable myocardium was evident in hemorrhagic MIs.

“We have shown that damage to the heart continues after revascularization as measured by rapidly increasing troponin levels in the hearts that have had a hemorrhage,” Dr. Dharmakumar said.

“Hemorrhage in the myocardium was associated with larger infarctions, and in infarcts causing the same area of myocardium to be at risk, those with hemorrhage after revascularization lost a lot more of the salvageable myocardium than those without hemorrhage,” he added.

Dr. Dharmakumar estimates that such hemorrhage occurs in about half of MIs after revascularization, with risk factors including male gender, anterior wall MIs, and smoking.

He pointed out that previous attempts to treat or prevent reperfusion injury have not been successful, probably because they have not been addressing the key mechanism. “We have not been looking at hemorrhage in this regard until now. This is because it is only recently that we have had the tools to be able to identify hemorrhage in the heart with the use of cardiac MRI.” 
 

Final frontier

In an accompanying editorial, Colin Berry, MBChB, University of Glasgow, and Borja Ibáñez, MD, Jiménez Díaz Foundation University Hospital, Madrid, said they applaud the investigators for providing new, mechanistic insights into a difficult clinical problem that has an unmet therapeutic need.

But they pointed out that it is difficult to completely dissect the impact of hemorrhage versus MI size on adverse remodeling, noting that it might be the case that more severe ischemia/reperfusion events are associated with large MI sizes and higher degree of hemorrhage.

However, they concluded that: “Intramyocardial hemorrhage represents the final frontier for preventing heart failure post-MI. It is readily detected using CMR, and clinical research of novel therapeutic approaches merits prioritization.”

This work was supported by grants from National Institutes of Health/National Heart, Lung, and Blood Institute. Dr. Dharmakumar and coauthor Robert Finney, PhD, have ownership interest in Cardiotheranostics. Dr. Berry is employed by the University of Glasgow, which holds consultancy and research agreements for his work with Abbott Vascular, AstraZeneca, Boehringer Ingelheim, Causeway Therapeutics, Coroventis, Genentech, GlaxoSmithKline, HeartFlow, Menarini, Neovasc, Siemens Healthcare, and Valo Health.

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

The damage to the heart caused by a myocardial infarction is not just a result of ischemia caused by the blocked artery but is also brought about by bleeding in the myocardium after the artery has been opened, a new study suggests.

This observation is leading to new approaches to limiting infarct size and treating MI.

“In MI treatment, we have always focused on opening up the artery as quickly as possible to limit the myocardial damage caused by ischemia,” the study’s senior author, Rohan Dharmakumar, PhD, Indiana University, Indianapolis, told this news organization.

“We are pursuing a completely new approach focusing on limiting the damage after revascularization,” he said. “We are totally rethinking what a myocardial infarction is – what causes the injury and the time course of the injury – our results suggest that it’s not just ischemic damage and a lot of the harm is caused by hemorrhage after reperfusion.”

It has been known for many years that hemorrhage is often seen in the myocardium in large MIs, but it has not been established before now whether it contributes to the injury or not, Dr. Dharmakumar explained.

“This study was done to look at that – and we found that the hemorrhage drives a second layer of injury on top of the ischemia.”

Dr. Dharmakumar said this hemorrhage is part of the phenomenon known as reperfusion injury. “This has been known to exist for many years, but we haven’t fully understood all the factors contributing to it. Our results suggest that hemorrhage is a major component of reperfusion injury – probably the dominant factor,” he said.  

The researchers are now working on therapeutic approaches to try to prevent this hemorrhage and/or to minimize its effect.

“We are studying how hemorrhage drives damage and how to block these biological processes,” Dr. Dharmakumar said. “Our studies suggest that hemorrhage could account for up to half of the damage caused by a myocardial infarction. If we can limit that, we should be able to reduce the size of the infarct and this should translate into better long-term outcomes.

“I’m very excited about these results,” he added. “We are already seeing a remarkable improvement in animal models with some of the potential therapeutic approaches we are working on.”

The current study is published in the January 2022 issue of the Journal of the American College of Cardiology (JACC).

The authors explain that it is now recognized that reperfusion injury can contribute to increasing infarct size, which they refer to as “infarct surge.” Previous studies have also shown that reperfusion injury can contribute to as much as 50% of the final infarct size, but the factors contributing to the observed variability are not known, and previous attempts to limit infarct surge from reperfusion injury have failed.

They noted that after reperfusion, microvessels can remain obstructed, resulting in intramyocardial hemorrhage. They conducted the current study to investigate whether such hemorrhage causes expansion of the infarct.

They studied 70 patients with ST-segment elevation MI who were categorized with cardiovascular MRI to have intramyocardial hemorrhage or not following primary PCI, and for whom serial cardiac troponin measures were used to assess infarct size.

Results showed that while troponin levels were not different before reperfusion, patients with intramyocardial hemorrhage had significantly higher cardiac troponin levels after reperfusion and these levels peaked earlier than in patients without hemorrhage.

In animal models, those with intramyocardial hemorrhage had a more rapid expansion of myocardial necrosis than did those without hemorrhage, and within 72 hours of reperfusion, a fourfold greater loss in salvageable myocardium was evident in hemorrhagic MIs.

“We have shown that damage to the heart continues after revascularization as measured by rapidly increasing troponin levels in the hearts that have had a hemorrhage,” Dr. Dharmakumar said.

“Hemorrhage in the myocardium was associated with larger infarctions, and in infarcts causing the same area of myocardium to be at risk, those with hemorrhage after revascularization lost a lot more of the salvageable myocardium than those without hemorrhage,” he added.

Dr. Dharmakumar estimates that such hemorrhage occurs in about half of MIs after revascularization, with risk factors including male gender, anterior wall MIs, and smoking.

He pointed out that previous attempts to treat or prevent reperfusion injury have not been successful, probably because they have not been addressing the key mechanism. “We have not been looking at hemorrhage in this regard until now. This is because it is only recently that we have had the tools to be able to identify hemorrhage in the heart with the use of cardiac MRI.” 
 

Final frontier

In an accompanying editorial, Colin Berry, MBChB, University of Glasgow, and Borja Ibáñez, MD, Jiménez Díaz Foundation University Hospital, Madrid, said they applaud the investigators for providing new, mechanistic insights into a difficult clinical problem that has an unmet therapeutic need.

But they pointed out that it is difficult to completely dissect the impact of hemorrhage versus MI size on adverse remodeling, noting that it might be the case that more severe ischemia/reperfusion events are associated with large MI sizes and higher degree of hemorrhage.

However, they concluded that: “Intramyocardial hemorrhage represents the final frontier for preventing heart failure post-MI. It is readily detected using CMR, and clinical research of novel therapeutic approaches merits prioritization.”

This work was supported by grants from National Institutes of Health/National Heart, Lung, and Blood Institute. Dr. Dharmakumar and coauthor Robert Finney, PhD, have ownership interest in Cardiotheranostics. Dr. Berry is employed by the University of Glasgow, which holds consultancy and research agreements for his work with Abbott Vascular, AstraZeneca, Boehringer Ingelheim, Causeway Therapeutics, Coroventis, Genentech, GlaxoSmithKline, HeartFlow, Menarini, Neovasc, Siemens Healthcare, and Valo Health.

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

The damage to the heart caused by a myocardial infarction is not just a result of ischemia caused by the blocked artery but is also brought about by bleeding in the myocardium after the artery has been opened, a new study suggests.

This observation is leading to new approaches to limiting infarct size and treating MI.

“In MI treatment, we have always focused on opening up the artery as quickly as possible to limit the myocardial damage caused by ischemia,” the study’s senior author, Rohan Dharmakumar, PhD, Indiana University, Indianapolis, told this news organization.

“We are pursuing a completely new approach focusing on limiting the damage after revascularization,” he said. “We are totally rethinking what a myocardial infarction is – what causes the injury and the time course of the injury – our results suggest that it’s not just ischemic damage and a lot of the harm is caused by hemorrhage after reperfusion.”

It has been known for many years that hemorrhage is often seen in the myocardium in large MIs, but it has not been established before now whether it contributes to the injury or not, Dr. Dharmakumar explained.

“This study was done to look at that – and we found that the hemorrhage drives a second layer of injury on top of the ischemia.”

Dr. Dharmakumar said this hemorrhage is part of the phenomenon known as reperfusion injury. “This has been known to exist for many years, but we haven’t fully understood all the factors contributing to it. Our results suggest that hemorrhage is a major component of reperfusion injury – probably the dominant factor,” he said.  

The researchers are now working on therapeutic approaches to try to prevent this hemorrhage and/or to minimize its effect.

“We are studying how hemorrhage drives damage and how to block these biological processes,” Dr. Dharmakumar said. “Our studies suggest that hemorrhage could account for up to half of the damage caused by a myocardial infarction. If we can limit that, we should be able to reduce the size of the infarct and this should translate into better long-term outcomes.

“I’m very excited about these results,” he added. “We are already seeing a remarkable improvement in animal models with some of the potential therapeutic approaches we are working on.”

The current study is published in the January 2022 issue of the Journal of the American College of Cardiology (JACC).

The authors explain that it is now recognized that reperfusion injury can contribute to increasing infarct size, which they refer to as “infarct surge.” Previous studies have also shown that reperfusion injury can contribute to as much as 50% of the final infarct size, but the factors contributing to the observed variability are not known, and previous attempts to limit infarct surge from reperfusion injury have failed.

They noted that after reperfusion, microvessels can remain obstructed, resulting in intramyocardial hemorrhage. They conducted the current study to investigate whether such hemorrhage causes expansion of the infarct.

They studied 70 patients with ST-segment elevation MI who were categorized with cardiovascular MRI to have intramyocardial hemorrhage or not following primary PCI, and for whom serial cardiac troponin measures were used to assess infarct size.

Results showed that while troponin levels were not different before reperfusion, patients with intramyocardial hemorrhage had significantly higher cardiac troponin levels after reperfusion and these levels peaked earlier than in patients without hemorrhage.

In animal models, those with intramyocardial hemorrhage had a more rapid expansion of myocardial necrosis than did those without hemorrhage, and within 72 hours of reperfusion, a fourfold greater loss in salvageable myocardium was evident in hemorrhagic MIs.

“We have shown that damage to the heart continues after revascularization as measured by rapidly increasing troponin levels in the hearts that have had a hemorrhage,” Dr. Dharmakumar said.

“Hemorrhage in the myocardium was associated with larger infarctions, and in infarcts causing the same area of myocardium to be at risk, those with hemorrhage after revascularization lost a lot more of the salvageable myocardium than those without hemorrhage,” he added.

Dr. Dharmakumar estimates that such hemorrhage occurs in about half of MIs after revascularization, with risk factors including male gender, anterior wall MIs, and smoking.

He pointed out that previous attempts to treat or prevent reperfusion injury have not been successful, probably because they have not been addressing the key mechanism. “We have not been looking at hemorrhage in this regard until now. This is because it is only recently that we have had the tools to be able to identify hemorrhage in the heart with the use of cardiac MRI.” 
 

Final frontier

In an accompanying editorial, Colin Berry, MBChB, University of Glasgow, and Borja Ibáñez, MD, Jiménez Díaz Foundation University Hospital, Madrid, said they applaud the investigators for providing new, mechanistic insights into a difficult clinical problem that has an unmet therapeutic need.

But they pointed out that it is difficult to completely dissect the impact of hemorrhage versus MI size on adverse remodeling, noting that it might be the case that more severe ischemia/reperfusion events are associated with large MI sizes and higher degree of hemorrhage.

However, they concluded that: “Intramyocardial hemorrhage represents the final frontier for preventing heart failure post-MI. It is readily detected using CMR, and clinical research of novel therapeutic approaches merits prioritization.”

This work was supported by grants from National Institutes of Health/National Heart, Lung, and Blood Institute. Dr. Dharmakumar and coauthor Robert Finney, PhD, have ownership interest in Cardiotheranostics. Dr. Berry is employed by the University of Glasgow, which holds consultancy and research agreements for his work with Abbott Vascular, AstraZeneca, Boehringer Ingelheim, Causeway Therapeutics, Coroventis, Genentech, GlaxoSmithKline, HeartFlow, Menarini, Neovasc, Siemens Healthcare, and Valo Health.

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

Patients with complex coronary artery disease (CAD) – either three-vessel disease and/or left main disease – who also had heavy coronary artery calcification (CAC) had greater all-cause mortality 10 years after revascularization, compared with those without such lesions.

However, perhaps unexpectedly, patients with heavily calcified lesions (HCLs) had similar 10-year survival whether they had undergone coronary artery bypass grafting (CABG) or percutaneous coronary intervention (PCI).

These findings from a post hoc analysis of the SYNTAX Extended Survival (SYNTAXES) study led by Hideyuki Kawashima, MD, PhD, National University of Ireland, Galway, and the University of Amsterdam, were published online Dec. 29, 2021, in JACC: Cardiovascular Interventions.

“There was an apparent lack of benefit at very long-term with CABG versus PCI in the presence of HCL,” Dr. Kawashima and corresponding author Patrick W. Serruys, MD, PhD, National University of Ireland and Imperial College London, summarized in a joint email to this news organization.

“Since HCLs – the final status of atherosclerosis and inflammation – reflect the aging process, complexity, and extensiveness of CAD, and comorbidity, it is possible that the currently available revascularization methods do not provide benefit in the prevention of long-term [10-year] mortality,” they suggested.  

In an accompanying editorial, Usman Baber, MD, commented that this study provides a “novel insight.”

Specifically, while patients without HCLs had significantly lower 10-year mortality with CABG versus PCI (18.8% vs. 26.0%; P = .003), an opposite trend was observed among those with HCLs (39.0% vs. 34.0%; P = .26; P int = .005).

The patients with HCLs had higher SYNTAX scores (30.8 vs. 22.4; P < .001) and more complex CAD, so their lack of 10-year mortality benefit with CABG “is somewhat unexpected and warrants further scrutiny,” added Dr. Baber, from the University of Oklahoma Health Sciences Center in Oklahoma City.

Dr. Serruys and Dr. Kawashima agreed that “this study highlights the need for further research on this topic focusing on this specific population with HCLs,” which were 30% of the patients with complex lesions who participated in SYNTAXES.
 

Consider factors beyond coronary anatomy

The current findings reinforce “the importance of considering not just coronary anatomy, but patient age and other comorbid factors when evaluating mode of revascularization,” said Dr. Baber.

“Coronary calcification is a strong factor in deciding between CABG versus PCI, as multiple studies have shown that CAC increases risk after PCI, even with contemporary safe stent platforms,” he explained in an email.

The current study suggests the adverse prognosis associated with CAC also persists for patients treated with CABG.

Dr. Baber said that, “for patients in whom PCI may not be feasible due to extensive and bulky coronary calcification, it is important to emphasize that the benefits of CABG (versus PCI) may not be as significant or durable.”

“The lack of benefit with CABG,” he added, “is likely due to comorbid factors that tend to increase in prevalence with vascular calcification (older age, peripheral arterial disease, renal impairment, etc).”

This study reinforces “the importance of not just considering coronary complexity, but also additional noncoronary factors that influence long-term prognosis in patients with advanced multivessel CAD,” Dr. Baber stressed.

More aggressive lipid-lowering or antithrombotic therapy may improve the prognosis for such patients, he suggested.

“In general,” Dr. Serruys and Dr. Kawashima similarly noted, “for short-/mid-term outcomes, CABG is preferred to PCI in patients with HCLs because of a higher rate of complete revascularization and less need for repeat revascularization.”

“Our findings at 10 years are in line with the general findings preferring CABG in mid and long term, whereas the benefit of very long-term follow-up might be more complex to capture and comprehend,” they concluded. “Whether HCLs require special consideration when deciding the mode of revascularization beyond their contribution to the SYNTAX score deserves further evaluation.

“Newer PCI technology or CABG methods may become a game-changer in the future,” they speculated.
 

Worse clinical outcomes

Heavy coronary calcification is associated with worse clinical outcomes after PCI or CABG, but to date, no trial has compared 10-year outcomes after PCI or CABG in patients with complex CAD with versus without HCLs.

To look at this, Dr. Kawashima and colleagues performed a subanalysis of patients in the SYNTAXES study. The original SYNTAX trial had randomized 1,800 patients with complex CAD who were eligible for either PCI or CABG 1:1 to these two treatments, with a 5-year follow-up, and SYNTAXES extended the follow-up to 10 years.  

Of the 1,800 patients, 532 (29.6%) had at least one HCL and the rest (70.4%) did not.

The median follow-up in SYNTAXES was 11.2 years overall and 11.9 years in survivors.

At baseline, compared with other patients, those with HCLs were older and had a lower body mass index and higher rates of insulin-treated diabetes, hypertension, previous cerebrovascular disease, peripheral vascular disease, chronic obstructive pulmonary disease, chronic kidney disease, and heart failure.

After adjusting for multiple variables, having a HCL was an independent predictor of greater risk of 10-year mortality (hazard ratio, 1.36; 95% confidence interval, 1.09-1.69; P = .006).

In patients without HCLs, mortality was significantly higher after PCI than CABG (HR, 1.44; 95% CI, 1.14-1.83; P = .003), whereas in those with HCLs, there was no significant difference (HR, 0.85; 95% CI, 0.64-1.13; P = .264).

The location of the HCL did not have any impact on 10-year mortality regardless of the assigned treatment.

Among patients with at least one HCL who underwent CABG, those with at least two HCLs had greater 10-year all-cause mortality than those with one HCL; this difference was not seen among patients with at least one HCL who underwent PCI.

The researchers acknowledge study limitations include that it was a post hoc analysis, so it should be considered hypothesis generating.

In addition, SYNTAX was conducted between 2005 and 2007, when PCI mainly used first-generation paclitaxel drug-eluting stents, so the findings may not be generalizable to current practice.

SYNTAXES was supported by the German Foundation of Heart Research. SYNTAX, during 0- to 5-year follow-up, was funded by Boston Scientific. Dr. Serruys reported receiving personal fees from SMT, Philips/Volcano, Xeltis, Novartis, and Meril Life. Dr. Kawashima reported no relevant financial relationships. Dr. Baber reported receiving honoraria and speaker fees from AstraZeneca, Biotronik, and Amgen.

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

Patients with complex coronary artery disease (CAD) – either three-vessel disease and/or left main disease – who also had heavy coronary artery calcification (CAC) had greater all-cause mortality 10 years after revascularization, compared with those without such lesions.

However, perhaps unexpectedly, patients with heavily calcified lesions (HCLs) had similar 10-year survival whether they had undergone coronary artery bypass grafting (CABG) or percutaneous coronary intervention (PCI).

These findings from a post hoc analysis of the SYNTAX Extended Survival (SYNTAXES) study led by Hideyuki Kawashima, MD, PhD, National University of Ireland, Galway, and the University of Amsterdam, were published online Dec. 29, 2021, in JACC: Cardiovascular Interventions.

“There was an apparent lack of benefit at very long-term with CABG versus PCI in the presence of HCL,” Dr. Kawashima and corresponding author Patrick W. Serruys, MD, PhD, National University of Ireland and Imperial College London, summarized in a joint email to this news organization.

“Since HCLs – the final status of atherosclerosis and inflammation – reflect the aging process, complexity, and extensiveness of CAD, and comorbidity, it is possible that the currently available revascularization methods do not provide benefit in the prevention of long-term [10-year] mortality,” they suggested.  

In an accompanying editorial, Usman Baber, MD, commented that this study provides a “novel insight.”

Specifically, while patients without HCLs had significantly lower 10-year mortality with CABG versus PCI (18.8% vs. 26.0%; P = .003), an opposite trend was observed among those with HCLs (39.0% vs. 34.0%; P = .26; P int = .005).

The patients with HCLs had higher SYNTAX scores (30.8 vs. 22.4; P < .001) and more complex CAD, so their lack of 10-year mortality benefit with CABG “is somewhat unexpected and warrants further scrutiny,” added Dr. Baber, from the University of Oklahoma Health Sciences Center in Oklahoma City.

Dr. Serruys and Dr. Kawashima agreed that “this study highlights the need for further research on this topic focusing on this specific population with HCLs,” which were 30% of the patients with complex lesions who participated in SYNTAXES.
 

Consider factors beyond coronary anatomy

The current findings reinforce “the importance of considering not just coronary anatomy, but patient age and other comorbid factors when evaluating mode of revascularization,” said Dr. Baber.

“Coronary calcification is a strong factor in deciding between CABG versus PCI, as multiple studies have shown that CAC increases risk after PCI, even with contemporary safe stent platforms,” he explained in an email.

The current study suggests the adverse prognosis associated with CAC also persists for patients treated with CABG.

Dr. Baber said that, “for patients in whom PCI may not be feasible due to extensive and bulky coronary calcification, it is important to emphasize that the benefits of CABG (versus PCI) may not be as significant or durable.”

“The lack of benefit with CABG,” he added, “is likely due to comorbid factors that tend to increase in prevalence with vascular calcification (older age, peripheral arterial disease, renal impairment, etc).”

This study reinforces “the importance of not just considering coronary complexity, but also additional noncoronary factors that influence long-term prognosis in patients with advanced multivessel CAD,” Dr. Baber stressed.

More aggressive lipid-lowering or antithrombotic therapy may improve the prognosis for such patients, he suggested.

“In general,” Dr. Serruys and Dr. Kawashima similarly noted, “for short-/mid-term outcomes, CABG is preferred to PCI in patients with HCLs because of a higher rate of complete revascularization and less need for repeat revascularization.”

“Our findings at 10 years are in line with the general findings preferring CABG in mid and long term, whereas the benefit of very long-term follow-up might be more complex to capture and comprehend,” they concluded. “Whether HCLs require special consideration when deciding the mode of revascularization beyond their contribution to the SYNTAX score deserves further evaluation.

“Newer PCI technology or CABG methods may become a game-changer in the future,” they speculated.
 

Worse clinical outcomes

Heavy coronary calcification is associated with worse clinical outcomes after PCI or CABG, but to date, no trial has compared 10-year outcomes after PCI or CABG in patients with complex CAD with versus without HCLs.

To look at this, Dr. Kawashima and colleagues performed a subanalysis of patients in the SYNTAXES study. The original SYNTAX trial had randomized 1,800 patients with complex CAD who were eligible for either PCI or CABG 1:1 to these two treatments, with a 5-year follow-up, and SYNTAXES extended the follow-up to 10 years.  

Of the 1,800 patients, 532 (29.6%) had at least one HCL and the rest (70.4%) did not.

The median follow-up in SYNTAXES was 11.2 years overall and 11.9 years in survivors.

At baseline, compared with other patients, those with HCLs were older and had a lower body mass index and higher rates of insulin-treated diabetes, hypertension, previous cerebrovascular disease, peripheral vascular disease, chronic obstructive pulmonary disease, chronic kidney disease, and heart failure.

After adjusting for multiple variables, having a HCL was an independent predictor of greater risk of 10-year mortality (hazard ratio, 1.36; 95% confidence interval, 1.09-1.69; P = .006).

In patients without HCLs, mortality was significantly higher after PCI than CABG (HR, 1.44; 95% CI, 1.14-1.83; P = .003), whereas in those with HCLs, there was no significant difference (HR, 0.85; 95% CI, 0.64-1.13; P = .264).

The location of the HCL did not have any impact on 10-year mortality regardless of the assigned treatment.

Among patients with at least one HCL who underwent CABG, those with at least two HCLs had greater 10-year all-cause mortality than those with one HCL; this difference was not seen among patients with at least one HCL who underwent PCI.

The researchers acknowledge study limitations include that it was a post hoc analysis, so it should be considered hypothesis generating.

In addition, SYNTAX was conducted between 2005 and 2007, when PCI mainly used first-generation paclitaxel drug-eluting stents, so the findings may not be generalizable to current practice.

SYNTAXES was supported by the German Foundation of Heart Research. SYNTAX, during 0- to 5-year follow-up, was funded by Boston Scientific. Dr. Serruys reported receiving personal fees from SMT, Philips/Volcano, Xeltis, Novartis, and Meril Life. Dr. Kawashima reported no relevant financial relationships. Dr. Baber reported receiving honoraria and speaker fees from AstraZeneca, Biotronik, and Amgen.

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

Patients with complex coronary artery disease (CAD) – either three-vessel disease and/or left main disease – who also had heavy coronary artery calcification (CAC) had greater all-cause mortality 10 years after revascularization, compared with those without such lesions.

However, perhaps unexpectedly, patients with heavily calcified lesions (HCLs) had similar 10-year survival whether they had undergone coronary artery bypass grafting (CABG) or percutaneous coronary intervention (PCI).

These findings from a post hoc analysis of the SYNTAX Extended Survival (SYNTAXES) study led by Hideyuki Kawashima, MD, PhD, National University of Ireland, Galway, and the University of Amsterdam, were published online Dec. 29, 2021, in JACC: Cardiovascular Interventions.

“There was an apparent lack of benefit at very long-term with CABG versus PCI in the presence of HCL,” Dr. Kawashima and corresponding author Patrick W. Serruys, MD, PhD, National University of Ireland and Imperial College London, summarized in a joint email to this news organization.

“Since HCLs – the final status of atherosclerosis and inflammation – reflect the aging process, complexity, and extensiveness of CAD, and comorbidity, it is possible that the currently available revascularization methods do not provide benefit in the prevention of long-term [10-year] mortality,” they suggested.  

In an accompanying editorial, Usman Baber, MD, commented that this study provides a “novel insight.”

Specifically, while patients without HCLs had significantly lower 10-year mortality with CABG versus PCI (18.8% vs. 26.0%; P = .003), an opposite trend was observed among those with HCLs (39.0% vs. 34.0%; P = .26; P int = .005).

The patients with HCLs had higher SYNTAX scores (30.8 vs. 22.4; P < .001) and more complex CAD, so their lack of 10-year mortality benefit with CABG “is somewhat unexpected and warrants further scrutiny,” added Dr. Baber, from the University of Oklahoma Health Sciences Center in Oklahoma City.

Dr. Serruys and Dr. Kawashima agreed that “this study highlights the need for further research on this topic focusing on this specific population with HCLs,” which were 30% of the patients with complex lesions who participated in SYNTAXES.
 

Consider factors beyond coronary anatomy

The current findings reinforce “the importance of considering not just coronary anatomy, but patient age and other comorbid factors when evaluating mode of revascularization,” said Dr. Baber.

“Coronary calcification is a strong factor in deciding between CABG versus PCI, as multiple studies have shown that CAC increases risk after PCI, even with contemporary safe stent platforms,” he explained in an email.

The current study suggests the adverse prognosis associated with CAC also persists for patients treated with CABG.

Dr. Baber said that, “for patients in whom PCI may not be feasible due to extensive and bulky coronary calcification, it is important to emphasize that the benefits of CABG (versus PCI) may not be as significant or durable.”

“The lack of benefit with CABG,” he added, “is likely due to comorbid factors that tend to increase in prevalence with vascular calcification (older age, peripheral arterial disease, renal impairment, etc).”

This study reinforces “the importance of not just considering coronary complexity, but also additional noncoronary factors that influence long-term prognosis in patients with advanced multivessel CAD,” Dr. Baber stressed.

More aggressive lipid-lowering or antithrombotic therapy may improve the prognosis for such patients, he suggested.

“In general,” Dr. Serruys and Dr. Kawashima similarly noted, “for short-/mid-term outcomes, CABG is preferred to PCI in patients with HCLs because of a higher rate of complete revascularization and less need for repeat revascularization.”

“Our findings at 10 years are in line with the general findings preferring CABG in mid and long term, whereas the benefit of very long-term follow-up might be more complex to capture and comprehend,” they concluded. “Whether HCLs require special consideration when deciding the mode of revascularization beyond their contribution to the SYNTAX score deserves further evaluation.

“Newer PCI technology or CABG methods may become a game-changer in the future,” they speculated.
 

Worse clinical outcomes

Heavy coronary calcification is associated with worse clinical outcomes after PCI or CABG, but to date, no trial has compared 10-year outcomes after PCI or CABG in patients with complex CAD with versus without HCLs.

To look at this, Dr. Kawashima and colleagues performed a subanalysis of patients in the SYNTAXES study. The original SYNTAX trial had randomized 1,800 patients with complex CAD who were eligible for either PCI or CABG 1:1 to these two treatments, with a 5-year follow-up, and SYNTAXES extended the follow-up to 10 years.  

Of the 1,800 patients, 532 (29.6%) had at least one HCL and the rest (70.4%) did not.

The median follow-up in SYNTAXES was 11.2 years overall and 11.9 years in survivors.

At baseline, compared with other patients, those with HCLs were older and had a lower body mass index and higher rates of insulin-treated diabetes, hypertension, previous cerebrovascular disease, peripheral vascular disease, chronic obstructive pulmonary disease, chronic kidney disease, and heart failure.

After adjusting for multiple variables, having a HCL was an independent predictor of greater risk of 10-year mortality (hazard ratio, 1.36; 95% confidence interval, 1.09-1.69; P = .006).

In patients without HCLs, mortality was significantly higher after PCI than CABG (HR, 1.44; 95% CI, 1.14-1.83; P = .003), whereas in those with HCLs, there was no significant difference (HR, 0.85; 95% CI, 0.64-1.13; P = .264).

The location of the HCL did not have any impact on 10-year mortality regardless of the assigned treatment.

Among patients with at least one HCL who underwent CABG, those with at least two HCLs had greater 10-year all-cause mortality than those with one HCL; this difference was not seen among patients with at least one HCL who underwent PCI.

The researchers acknowledge study limitations include that it was a post hoc analysis, so it should be considered hypothesis generating.

In addition, SYNTAX was conducted between 2005 and 2007, when PCI mainly used first-generation paclitaxel drug-eluting stents, so the findings may not be generalizable to current practice.

SYNTAXES was supported by the German Foundation of Heart Research. SYNTAX, during 0- to 5-year follow-up, was funded by Boston Scientific. Dr. Serruys reported receiving personal fees from SMT, Philips/Volcano, Xeltis, Novartis, and Meril Life. Dr. Kawashima reported no relevant financial relationships. Dr. Baber reported receiving honoraria and speaker fees from AstraZeneca, Biotronik, and Amgen.

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

The new 2021 coronary revascularization guidelines are spurring controversy, as surgical associations raise concerns about the interpretation of the evidence behind key recommendations and the makeup of the writing committee.

The guideline was published in December by the American College of Cardiology, American Heart Association, and Society for Cardiovascular Angiography and Interventions (ACC/AHA/SCAI), and replaces the 2011 coronary artery bypass surgery (CABG) and the 2011 and 2015 percutaneous coronary intervention (PCI) guidelines.

The American Association for Thoracic Surgery (AATS) and Society of Thoracic Surgeons (STS) were part of the development of the document but have withdrawn their support, citing three areas of concern in a recent editorial in Annals of Thoracic Surgery.

“I do have to emphasize this is not just the AATS and STS – the European societies, Latin American societies, Asian societies, and even cardiologists are all coming out against these guidelines,” Joseph F. Sabik III, MD, University Hospitals Cleveland Medical Center, lead author of the editorial, said in an interview. “So, I think that tells us that something didn’t go right here.”

The main objection is the downgrading of CABG surgery from a class 1 to weak 2b recommendation to improve survival in patients with three-vessel coronary artery disease (CAD) and normal left ventricular function.

The ISCHEMIA trial was used to support this two-level downgrade and a class 1 to 2a downgrade for CABG in three-vessel CAD with mild to moderate left ventricular dysfunction. But the trial wasn’t powered for survival, only 20% of patients underwent CABG as the initial invasive strategy, and patients were followed for less than 5 years, the editorialists observed.

At the same time, there’s plenty of observational and randomized studies such as SYNTAX, EXCEL, and FAME 3 showing a clear survival benefit of CABG over PCI, Dr. Sabik said. “The criticism is that these are old studies and aren’t applicable today, but we don’t understand downgrading without any evidence suggesting it [CABG] isn’t effective anymore.”
 

CABG and PCI treated as equal

AATS and STS also object to the new guidelines treating PCI and CABG as equivalent revascularization strategies in decreasing ischemic events. Both were given a 2b recommendation for survival with triple-vessel disease, but randomized trials have demonstrated not only lower mortality with surgery but fewer reinterventions and myocardial infarctions.

“None of that gets acknowledged in the guidelines; they are treated equally,” Dr. Sabik said. “So if you’re going to say that CABG isn’t any better than medical therapy, in our mind, you have to say that PCI is worse than medical therapy. And we don’t believe that, I want you to know. We just think that the logic doesn’t make any sense. The committee used what it wanted to but didn’t use many things that committees have used in the past to give CABG a level 1 recommendation.”

The downgrade is also at odds with the 2018 European Society of Cardiology (ESC)/ European Association for Cardio-Thoracic Surgery (EACTS) guidelines, which give CABG a class 1 recommendation in three-vessel CAD as well as one- or two-vessel CAD with proximal left atrial descending artery stenosis.

In a Dec. 14 letter to the ACC/AHA Joint Committee, the Latin American Association of Cardiac and Endovascular Surgery (LACES) also called out the guideline committee for the 2b class of recommendation (COR) for PCI and CABG, saying it contradicts the text, which “clearly considers” the need to give a weaker endorsement for PCI than for CABG in patients with multivessel CAD.

“Considering that this section has the most significant impact due to the prevalence of stable ischemic heart disease in patients with multivessel CAD, such a contradiction may affect the lives and survival of millions of patients worldwide and have a major socioeconomic impact,” the letter states.

“Therefore, LACES respectfully but vehemently believes the Task Force should seriously reconsider the wording and recommendations in this specific large group of patients.”
 

Class I for radial conduit

AATS and STS also express concern about the new class 1 recommendation for the radial artery as a conduit in CABG. They note this is higher than bilateral internal mammary artery grafting and based on a meta-analysis of six relatively small studies with very strict inclusion criteria favorable for radial artery usage and patency.

“There’s a lot of studies that showed if you use the radial artery incorrectly, you have worse outcomes, and that’s what scares us a bit,” Dr. Sabik said. “If they’re giving it a class 1 recommendation, does that mean that becomes standard of care and could that cause patient harm? We think that level 1 is too high and that a [class] 2a with qualifications would be appropriate.”
 

Unequal footing

In a Dec. 23 letter, EACTS said it is “extremely concerned” about downgrading the COR for CABG without new randomized controlled trials to support the decision or to reject previously held evidence.

“The downgrading of CABG, and placing PCI at the same COR, does not meet our interpretation of the evidence, and may lead to avoidable loss of life,” EACTS officials said. “These guidelines also have implications on patient care: A COR IIb entails that CABG may not be reimbursable in some countries.”

EACTS called on AHA, ACC, and SCAI to review the evidence and called out the makeup of the guideline writing committee. “It is astonishing that no surgical association was involved, coauthored, or endorsed these guidelines.”

The AATS and STS each had a single representative on the guidelines’ writing committee but note that the six remaining surgeons were chosen by the ACC and AHA. Surgeons were also in the minority and only a majority was needed to approve the guidelines, highlighting the need to revisit the guideline development process to ensure equal representation by multidisciplinary experts across specialties.

“I hope the cardiology and surgical societies can come together and figure out how we do this better in the future, and we take a look again at these guidelines and come up with what we think is appropriate, especially since this is not just AATS and STS,” Dr. Sabik said.

In an emailed statement, the ACC/AHA said the AATS and STS representatives “actively participated throughout the writing process the past 3 years” and that the AATS and STS were involved in the “extensive peer review process” for the document with a reviewer from each organization. Nevertheless, AATS and STS both elected not to endorse the guidelines when at the organizational approval stage.

“Consequently, the AATS representative chose to stay with the committee and be recognized as having been appointed on behalf of the ACC and the AHA,” according to the statement. “The STS representative chose to withdraw from the committee and is not listed as a writing committee member on the final guideline. The final guideline reflects the latest evidence-based recommendations for coronary artery revascularization, as agreed by the ACC, AHA, SCAI, and the full writing committee.”

Despite pleas from the surgical groups to reconsider the evidence, “there is no further review process for the revascularization guideline,” the ACC/AHA spokesperson noted.

Jennifer S. Lawton, MD, chief of cardiac surgery at Johns Hopkins University, Baltimore, and guideline writing committee chair, did not respond to numerous requests for comment.

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

The new 2021 coronary revascularization guidelines are spurring controversy, as surgical associations raise concerns about the interpretation of the evidence behind key recommendations and the makeup of the writing committee.

The guideline was published in December by the American College of Cardiology, American Heart Association, and Society for Cardiovascular Angiography and Interventions (ACC/AHA/SCAI), and replaces the 2011 coronary artery bypass surgery (CABG) and the 2011 and 2015 percutaneous coronary intervention (PCI) guidelines.

The American Association for Thoracic Surgery (AATS) and Society of Thoracic Surgeons (STS) were part of the development of the document but have withdrawn their support, citing three areas of concern in a recent editorial in Annals of Thoracic Surgery.

“I do have to emphasize this is not just the AATS and STS – the European societies, Latin American societies, Asian societies, and even cardiologists are all coming out against these guidelines,” Joseph F. Sabik III, MD, University Hospitals Cleveland Medical Center, lead author of the editorial, said in an interview. “So, I think that tells us that something didn’t go right here.”

The main objection is the downgrading of CABG surgery from a class 1 to weak 2b recommendation to improve survival in patients with three-vessel coronary artery disease (CAD) and normal left ventricular function.

The ISCHEMIA trial was used to support this two-level downgrade and a class 1 to 2a downgrade for CABG in three-vessel CAD with mild to moderate left ventricular dysfunction. But the trial wasn’t powered for survival, only 20% of patients underwent CABG as the initial invasive strategy, and patients were followed for less than 5 years, the editorialists observed.

At the same time, there’s plenty of observational and randomized studies such as SYNTAX, EXCEL, and FAME 3 showing a clear survival benefit of CABG over PCI, Dr. Sabik said. “The criticism is that these are old studies and aren’t applicable today, but we don’t understand downgrading without any evidence suggesting it [CABG] isn’t effective anymore.”
 

CABG and PCI treated as equal

AATS and STS also object to the new guidelines treating PCI and CABG as equivalent revascularization strategies in decreasing ischemic events. Both were given a 2b recommendation for survival with triple-vessel disease, but randomized trials have demonstrated not only lower mortality with surgery but fewer reinterventions and myocardial infarctions.

“None of that gets acknowledged in the guidelines; they are treated equally,” Dr. Sabik said. “So if you’re going to say that CABG isn’t any better than medical therapy, in our mind, you have to say that PCI is worse than medical therapy. And we don’t believe that, I want you to know. We just think that the logic doesn’t make any sense. The committee used what it wanted to but didn’t use many things that committees have used in the past to give CABG a level 1 recommendation.”

The downgrade is also at odds with the 2018 European Society of Cardiology (ESC)/ European Association for Cardio-Thoracic Surgery (EACTS) guidelines, which give CABG a class 1 recommendation in three-vessel CAD as well as one- or two-vessel CAD with proximal left atrial descending artery stenosis.

In a Dec. 14 letter to the ACC/AHA Joint Committee, the Latin American Association of Cardiac and Endovascular Surgery (LACES) also called out the guideline committee for the 2b class of recommendation (COR) for PCI and CABG, saying it contradicts the text, which “clearly considers” the need to give a weaker endorsement for PCI than for CABG in patients with multivessel CAD.

“Considering that this section has the most significant impact due to the prevalence of stable ischemic heart disease in patients with multivessel CAD, such a contradiction may affect the lives and survival of millions of patients worldwide and have a major socioeconomic impact,” the letter states.

“Therefore, LACES respectfully but vehemently believes the Task Force should seriously reconsider the wording and recommendations in this specific large group of patients.”
 

Class I for radial conduit

AATS and STS also express concern about the new class 1 recommendation for the radial artery as a conduit in CABG. They note this is higher than bilateral internal mammary artery grafting and based on a meta-analysis of six relatively small studies with very strict inclusion criteria favorable for radial artery usage and patency.

“There’s a lot of studies that showed if you use the radial artery incorrectly, you have worse outcomes, and that’s what scares us a bit,” Dr. Sabik said. “If they’re giving it a class 1 recommendation, does that mean that becomes standard of care and could that cause patient harm? We think that level 1 is too high and that a [class] 2a with qualifications would be appropriate.”
 

Unequal footing

In a Dec. 23 letter, EACTS said it is “extremely concerned” about downgrading the COR for CABG without new randomized controlled trials to support the decision or to reject previously held evidence.

“The downgrading of CABG, and placing PCI at the same COR, does not meet our interpretation of the evidence, and may lead to avoidable loss of life,” EACTS officials said. “These guidelines also have implications on patient care: A COR IIb entails that CABG may not be reimbursable in some countries.”

EACTS called on AHA, ACC, and SCAI to review the evidence and called out the makeup of the guideline writing committee. “It is astonishing that no surgical association was involved, coauthored, or endorsed these guidelines.”

The AATS and STS each had a single representative on the guidelines’ writing committee but note that the six remaining surgeons were chosen by the ACC and AHA. Surgeons were also in the minority and only a majority was needed to approve the guidelines, highlighting the need to revisit the guideline development process to ensure equal representation by multidisciplinary experts across specialties.

“I hope the cardiology and surgical societies can come together and figure out how we do this better in the future, and we take a look again at these guidelines and come up with what we think is appropriate, especially since this is not just AATS and STS,” Dr. Sabik said.

In an emailed statement, the ACC/AHA said the AATS and STS representatives “actively participated throughout the writing process the past 3 years” and that the AATS and STS were involved in the “extensive peer review process” for the document with a reviewer from each organization. Nevertheless, AATS and STS both elected not to endorse the guidelines when at the organizational approval stage.

“Consequently, the AATS representative chose to stay with the committee and be recognized as having been appointed on behalf of the ACC and the AHA,” according to the statement. “The STS representative chose to withdraw from the committee and is not listed as a writing committee member on the final guideline. The final guideline reflects the latest evidence-based recommendations for coronary artery revascularization, as agreed by the ACC, AHA, SCAI, and the full writing committee.”

Despite pleas from the surgical groups to reconsider the evidence, “there is no further review process for the revascularization guideline,” the ACC/AHA spokesperson noted.

Jennifer S. Lawton, MD, chief of cardiac surgery at Johns Hopkins University, Baltimore, and guideline writing committee chair, did not respond to numerous requests for comment.

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

The new 2021 coronary revascularization guidelines are spurring controversy, as surgical associations raise concerns about the interpretation of the evidence behind key recommendations and the makeup of the writing committee.

The guideline was published in December by the American College of Cardiology, American Heart Association, and Society for Cardiovascular Angiography and Interventions (ACC/AHA/SCAI), and replaces the 2011 coronary artery bypass surgery (CABG) and the 2011 and 2015 percutaneous coronary intervention (PCI) guidelines.

The American Association for Thoracic Surgery (AATS) and Society of Thoracic Surgeons (STS) were part of the development of the document but have withdrawn their support, citing three areas of concern in a recent editorial in Annals of Thoracic Surgery.

“I do have to emphasize this is not just the AATS and STS – the European societies, Latin American societies, Asian societies, and even cardiologists are all coming out against these guidelines,” Joseph F. Sabik III, MD, University Hospitals Cleveland Medical Center, lead author of the editorial, said in an interview. “So, I think that tells us that something didn’t go right here.”

The main objection is the downgrading of CABG surgery from a class 1 to weak 2b recommendation to improve survival in patients with three-vessel coronary artery disease (CAD) and normal left ventricular function.

The ISCHEMIA trial was used to support this two-level downgrade and a class 1 to 2a downgrade for CABG in three-vessel CAD with mild to moderate left ventricular dysfunction. But the trial wasn’t powered for survival, only 20% of patients underwent CABG as the initial invasive strategy, and patients were followed for less than 5 years, the editorialists observed.

At the same time, there’s plenty of observational and randomized studies such as SYNTAX, EXCEL, and FAME 3 showing a clear survival benefit of CABG over PCI, Dr. Sabik said. “The criticism is that these are old studies and aren’t applicable today, but we don’t understand downgrading without any evidence suggesting it [CABG] isn’t effective anymore.”
 

CABG and PCI treated as equal

AATS and STS also object to the new guidelines treating PCI and CABG as equivalent revascularization strategies in decreasing ischemic events. Both were given a 2b recommendation for survival with triple-vessel disease, but randomized trials have demonstrated not only lower mortality with surgery but fewer reinterventions and myocardial infarctions.

“None of that gets acknowledged in the guidelines; they are treated equally,” Dr. Sabik said. “So if you’re going to say that CABG isn’t any better than medical therapy, in our mind, you have to say that PCI is worse than medical therapy. And we don’t believe that, I want you to know. We just think that the logic doesn’t make any sense. The committee used what it wanted to but didn’t use many things that committees have used in the past to give CABG a level 1 recommendation.”

The downgrade is also at odds with the 2018 European Society of Cardiology (ESC)/ European Association for Cardio-Thoracic Surgery (EACTS) guidelines, which give CABG a class 1 recommendation in three-vessel CAD as well as one- or two-vessel CAD with proximal left atrial descending artery stenosis.

In a Dec. 14 letter to the ACC/AHA Joint Committee, the Latin American Association of Cardiac and Endovascular Surgery (LACES) also called out the guideline committee for the 2b class of recommendation (COR) for PCI and CABG, saying it contradicts the text, which “clearly considers” the need to give a weaker endorsement for PCI than for CABG in patients with multivessel CAD.

“Considering that this section has the most significant impact due to the prevalence of stable ischemic heart disease in patients with multivessel CAD, such a contradiction may affect the lives and survival of millions of patients worldwide and have a major socioeconomic impact,” the letter states.

“Therefore, LACES respectfully but vehemently believes the Task Force should seriously reconsider the wording and recommendations in this specific large group of patients.”
 

Class I for radial conduit

AATS and STS also express concern about the new class 1 recommendation for the radial artery as a conduit in CABG. They note this is higher than bilateral internal mammary artery grafting and based on a meta-analysis of six relatively small studies with very strict inclusion criteria favorable for radial artery usage and patency.

“There’s a lot of studies that showed if you use the radial artery incorrectly, you have worse outcomes, and that’s what scares us a bit,” Dr. Sabik said. “If they’re giving it a class 1 recommendation, does that mean that becomes standard of care and could that cause patient harm? We think that level 1 is too high and that a [class] 2a with qualifications would be appropriate.”
 

Unequal footing

In a Dec. 23 letter, EACTS said it is “extremely concerned” about downgrading the COR for CABG without new randomized controlled trials to support the decision or to reject previously held evidence.

“The downgrading of CABG, and placing PCI at the same COR, does not meet our interpretation of the evidence, and may lead to avoidable loss of life,” EACTS officials said. “These guidelines also have implications on patient care: A COR IIb entails that CABG may not be reimbursable in some countries.”

EACTS called on AHA, ACC, and SCAI to review the evidence and called out the makeup of the guideline writing committee. “It is astonishing that no surgical association was involved, coauthored, or endorsed these guidelines.”

The AATS and STS each had a single representative on the guidelines’ writing committee but note that the six remaining surgeons were chosen by the ACC and AHA. Surgeons were also in the minority and only a majority was needed to approve the guidelines, highlighting the need to revisit the guideline development process to ensure equal representation by multidisciplinary experts across specialties.

“I hope the cardiology and surgical societies can come together and figure out how we do this better in the future, and we take a look again at these guidelines and come up with what we think is appropriate, especially since this is not just AATS and STS,” Dr. Sabik said.

In an emailed statement, the ACC/AHA said the AATS and STS representatives “actively participated throughout the writing process the past 3 years” and that the AATS and STS were involved in the “extensive peer review process” for the document with a reviewer from each organization. Nevertheless, AATS and STS both elected not to endorse the guidelines when at the organizational approval stage.

“Consequently, the AATS representative chose to stay with the committee and be recognized as having been appointed on behalf of the ACC and the AHA,” according to the statement. “The STS representative chose to withdraw from the committee and is not listed as a writing committee member on the final guideline. The final guideline reflects the latest evidence-based recommendations for coronary artery revascularization, as agreed by the ACC, AHA, SCAI, and the full writing committee.”

Despite pleas from the surgical groups to reconsider the evidence, “there is no further review process for the revascularization guideline,” the ACC/AHA spokesperson noted.

Jennifer S. Lawton, MD, chief of cardiac surgery at Johns Hopkins University, Baltimore, and guideline writing committee chair, did not respond to numerous requests for comment.

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

Even though men in midlife have more cardiovascular (CV) conditions and risk factors than women of the same age, women are more affected by these conditions in terms of cognitive decline, new research suggests.

Analyses of almost 1,400 participants in the population-based Mayo Clinic Study of Aging showed that diabetes, dyslipidemia, and coronary heart disease (CHD) all had stronger associations with global cognitive decline in women than in men.

“All men and women should be treated for cardiovascular risk factors and conditions, but this study really highlights the importance of very early and perhaps more aggressive treatment in women with these conditions,” co-investigator Michelle M. Mielke, PhD, professor of epidemiology and neurology, Mayo Clinic, Rochester, Minn., told this news organization.

The findings were published online Jan. 5 in Neurology.
 

Assessing sex differences

Most previous studies in this area have focused on CV risk factors in midlife in relation to late-life dementia (after age 75) or on late-life vascular risk factors and late-life dementia, Dr. Mielke noted.

However, a few recent studies have suggested vascular risk factors can affect cognition even in midlife. The current investigators sought to determine whether there are sex differences in these associations.

They assessed 1,857 nondemented participants aged 50 to 69 years from the Mayo Clinic Study on Aging. The mean education level was 14.9 years, and the mean body mass index (BMI) was 29.7.

Among the participants, 78.9% had at least one CV condition or risk factor, and the proportion was higher in men than women (83.4% vs. 74.5%; P < .0001).

Frequency of each individual CV condition or risk factor was also higher in men than women, and they had more years of education and higher BMI but took fewer medications.

Every 15 months, participants had an in-person interview and physical examination that included a neurologic assessment and short test of memory.

The neuropsychological battery included nine tests across four domains: memory, language, executive function, and visuospatial skills. Researchers calculated z-scores for these domains and for global cognition.
 

Multiple cognitive domains

Whereas this study evaluated multiple cognitive domains, most previous research has focused on global cognitive decline and/or decline in only one or two cognitive domains, the investigators note.

They collected information from medical records on CV conditions such as CHD, arrhythmias, congestive heart failure, peripheral vascular disease (PVD), and stroke; and CV risk factors such as hypertension, diabetes, dyslipidemia, smoking status, and BMI.

Because of the small number of patients with stroke and PVD, these were classified as “other cardiovascular conditions” in the statistical analysis.

Researchers adjusted for sex, age, years of education, depressive symptoms, comorbidities, medications, and apolipoprotein E (APOE) genotyping. The mean follow-up was 3 years and did not differ by sex.

As some participants didn’t have a follow-up visit, the current analysis included 1,394 individuals. Those without follow-up visits were younger, had less education and more comorbidities, and took more medications compared with those with a follow-up.

Results showed most CV conditions were more strongly associated with cognitive function among women than men. For example, CHD was associated with global decline only in women (P < .05).

CHD, diabetes, and dyslipidemia were associated with language decline in women only (all, P < .05), but congestive heart failure was significantly associated with language decline in men only.

Dr. Mielke cautioned about reading too much into the language results for women.

“It’s an intriguing finding and definitely we need to follow up on it,” she said. However, “more studies are needed to examine sex differences before we start saying it only has an effect on language.”
 

‘Treat aggressively and right away’

The researchers were somewhat surprised by the study findings. Because there is a higher prevalence of CV conditions and risk factors in men, they presumed men would be more affected by these conditions, said Dr. Mielke.

“But that’s not what we saw; we saw the reverse. It was actually the women who were affected more by these cardiovascular risk factors and conditions,” she said.

As midlife is when women enter menopause, fluctuating estrogen levels may help explain the differential impact on cognition among women. But Dr. Mielke said she wants to “move beyond” just looking at hormones.

She pointed out there are a variety of psychosocial factors that may also contribute to an imbalance in the cognitive impact of CV conditions on women.

“Midlife is when many women are still taking care of their children at home, are also taking care of their adult parents, and may be undergoing more stress while continuing to do a job,” Dr. Miekle said.

Structural brain development and genetics may also contribute to the greater effect on cognition in women, the investigators note.

Dr. Mielke stressed that the current study only identifies associations. “The next steps are to understand what some of the underlying mechanisms for this are,” she said.

In the meantime, these new results suggest middle-aged women with high blood pressure, cholesterol, or glucose measures “should be treated aggressively and right away” said Dr. Mielke.

“For example, for women who are just starting to become hypertensive, clinicians should treat them right away and not watch and wait.”

Study limitations cited include that its sample was limited to Olmsted County, Minnesota – so results may not be generalized to other populations. Also, as researchers combined PVD and stroke into one group, larger sample sizes are needed, especially for stroke. Another limitation was the study did not have information on duration of all CV conditions or risk factors.
 

Helpful for tailoring interventions?

Commenting on the study, Glen R. Finney, MD, director, Memory and Cognition Program, Geisinger Health Clinic, Wilkes-Barre, Pennsylvania, said the results are important.

“The more we understand about risk factors for the development of Alzheimer’s disease and related dementias, the better we understand how we can reduce the risks,” said Dr. Finney, who was not involved with the research.

Awareness that CV conditions are major risk factors in midlife has been “definitely rising,” said Dr. Finney. “Many studies originally were looking at late life and are now looking more at earlier in the disease process, and I think that’s important.”

Understanding how sex, ethnicity, and other demographic variables affect risks can help to “tailor interventions” for individual patients, he said.

The study was supported by the National Institutes of Health, the GHR Foundation, and the Rochester Epidemiology Project. Dr. Mielke is a consultant for Biogen and Brain Protection Company and is on the editorial boards of Neurology and Alzheimer’s and Dementia. Dr. Finney has reported no relevant financial relationships.

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

Even though men in midlife have more cardiovascular (CV) conditions and risk factors than women of the same age, women are more affected by these conditions in terms of cognitive decline, new research suggests.

Analyses of almost 1,400 participants in the population-based Mayo Clinic Study of Aging showed that diabetes, dyslipidemia, and coronary heart disease (CHD) all had stronger associations with global cognitive decline in women than in men.

“All men and women should be treated for cardiovascular risk factors and conditions, but this study really highlights the importance of very early and perhaps more aggressive treatment in women with these conditions,” co-investigator Michelle M. Mielke, PhD, professor of epidemiology and neurology, Mayo Clinic, Rochester, Minn., told this news organization.

The findings were published online Jan. 5 in Neurology.
 

Assessing sex differences

Most previous studies in this area have focused on CV risk factors in midlife in relation to late-life dementia (after age 75) or on late-life vascular risk factors and late-life dementia, Dr. Mielke noted.

However, a few recent studies have suggested vascular risk factors can affect cognition even in midlife. The current investigators sought to determine whether there are sex differences in these associations.

They assessed 1,857 nondemented participants aged 50 to 69 years from the Mayo Clinic Study on Aging. The mean education level was 14.9 years, and the mean body mass index (BMI) was 29.7.

Among the participants, 78.9% had at least one CV condition or risk factor, and the proportion was higher in men than women (83.4% vs. 74.5%; P < .0001).

Frequency of each individual CV condition or risk factor was also higher in men than women, and they had more years of education and higher BMI but took fewer medications.

Every 15 months, participants had an in-person interview and physical examination that included a neurologic assessment and short test of memory.

The neuropsychological battery included nine tests across four domains: memory, language, executive function, and visuospatial skills. Researchers calculated z-scores for these domains and for global cognition.
 

Multiple cognitive domains

Whereas this study evaluated multiple cognitive domains, most previous research has focused on global cognitive decline and/or decline in only one or two cognitive domains, the investigators note.

They collected information from medical records on CV conditions such as CHD, arrhythmias, congestive heart failure, peripheral vascular disease (PVD), and stroke; and CV risk factors such as hypertension, diabetes, dyslipidemia, smoking status, and BMI.

Because of the small number of patients with stroke and PVD, these were classified as “other cardiovascular conditions” in the statistical analysis.

Researchers adjusted for sex, age, years of education, depressive symptoms, comorbidities, medications, and apolipoprotein E (APOE) genotyping. The mean follow-up was 3 years and did not differ by sex.

As some participants didn’t have a follow-up visit, the current analysis included 1,394 individuals. Those without follow-up visits were younger, had less education and more comorbidities, and took more medications compared with those with a follow-up.

Results showed most CV conditions were more strongly associated with cognitive function among women than men. For example, CHD was associated with global decline only in women (P < .05).

CHD, diabetes, and dyslipidemia were associated with language decline in women only (all, P < .05), but congestive heart failure was significantly associated with language decline in men only.

Dr. Mielke cautioned about reading too much into the language results for women.

“It’s an intriguing finding and definitely we need to follow up on it,” she said. However, “more studies are needed to examine sex differences before we start saying it only has an effect on language.”
 

‘Treat aggressively and right away’

The researchers were somewhat surprised by the study findings. Because there is a higher prevalence of CV conditions and risk factors in men, they presumed men would be more affected by these conditions, said Dr. Mielke.

“But that’s not what we saw; we saw the reverse. It was actually the women who were affected more by these cardiovascular risk factors and conditions,” she said.

As midlife is when women enter menopause, fluctuating estrogen levels may help explain the differential impact on cognition among women. But Dr. Mielke said she wants to “move beyond” just looking at hormones.

She pointed out there are a variety of psychosocial factors that may also contribute to an imbalance in the cognitive impact of CV conditions on women.

“Midlife is when many women are still taking care of their children at home, are also taking care of their adult parents, and may be undergoing more stress while continuing to do a job,” Dr. Miekle said.

Structural brain development and genetics may also contribute to the greater effect on cognition in women, the investigators note.

Dr. Mielke stressed that the current study only identifies associations. “The next steps are to understand what some of the underlying mechanisms for this are,” she said.

In the meantime, these new results suggest middle-aged women with high blood pressure, cholesterol, or glucose measures “should be treated aggressively and right away” said Dr. Mielke.

“For example, for women who are just starting to become hypertensive, clinicians should treat them right away and not watch and wait.”

Study limitations cited include that its sample was limited to Olmsted County, Minnesota – so results may not be generalized to other populations. Also, as researchers combined PVD and stroke into one group, larger sample sizes are needed, especially for stroke. Another limitation was the study did not have information on duration of all CV conditions or risk factors.
 

Helpful for tailoring interventions?

Commenting on the study, Glen R. Finney, MD, director, Memory and Cognition Program, Geisinger Health Clinic, Wilkes-Barre, Pennsylvania, said the results are important.

“The more we understand about risk factors for the development of Alzheimer’s disease and related dementias, the better we understand how we can reduce the risks,” said Dr. Finney, who was not involved with the research.

Awareness that CV conditions are major risk factors in midlife has been “definitely rising,” said Dr. Finney. “Many studies originally were looking at late life and are now looking more at earlier in the disease process, and I think that’s important.”

Understanding how sex, ethnicity, and other demographic variables affect risks can help to “tailor interventions” for individual patients, he said.

The study was supported by the National Institutes of Health, the GHR Foundation, and the Rochester Epidemiology Project. Dr. Mielke is a consultant for Biogen and Brain Protection Company and is on the editorial boards of Neurology and Alzheimer’s and Dementia. Dr. Finney has reported no relevant financial relationships.

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

Even though men in midlife have more cardiovascular (CV) conditions and risk factors than women of the same age, women are more affected by these conditions in terms of cognitive decline, new research suggests.

Analyses of almost 1,400 participants in the population-based Mayo Clinic Study of Aging showed that diabetes, dyslipidemia, and coronary heart disease (CHD) all had stronger associations with global cognitive decline in women than in men.

“All men and women should be treated for cardiovascular risk factors and conditions, but this study really highlights the importance of very early and perhaps more aggressive treatment in women with these conditions,” co-investigator Michelle M. Mielke, PhD, professor of epidemiology and neurology, Mayo Clinic, Rochester, Minn., told this news organization.

The findings were published online Jan. 5 in Neurology.
 

Assessing sex differences

Most previous studies in this area have focused on CV risk factors in midlife in relation to late-life dementia (after age 75) or on late-life vascular risk factors and late-life dementia, Dr. Mielke noted.

However, a few recent studies have suggested vascular risk factors can affect cognition even in midlife. The current investigators sought to determine whether there are sex differences in these associations.

They assessed 1,857 nondemented participants aged 50 to 69 years from the Mayo Clinic Study on Aging. The mean education level was 14.9 years, and the mean body mass index (BMI) was 29.7.

Among the participants, 78.9% had at least one CV condition or risk factor, and the proportion was higher in men than women (83.4% vs. 74.5%; P < .0001).

Frequency of each individual CV condition or risk factor was also higher in men than women, and they had more years of education and higher BMI but took fewer medications.

Every 15 months, participants had an in-person interview and physical examination that included a neurologic assessment and short test of memory.

The neuropsychological battery included nine tests across four domains: memory, language, executive function, and visuospatial skills. Researchers calculated z-scores for these domains and for global cognition.
 

Multiple cognitive domains

Whereas this study evaluated multiple cognitive domains, most previous research has focused on global cognitive decline and/or decline in only one or two cognitive domains, the investigators note.

They collected information from medical records on CV conditions such as CHD, arrhythmias, congestive heart failure, peripheral vascular disease (PVD), and stroke; and CV risk factors such as hypertension, diabetes, dyslipidemia, smoking status, and BMI.

Because of the small number of patients with stroke and PVD, these were classified as “other cardiovascular conditions” in the statistical analysis.

Researchers adjusted for sex, age, years of education, depressive symptoms, comorbidities, medications, and apolipoprotein E (APOE) genotyping. The mean follow-up was 3 years and did not differ by sex.

As some participants didn’t have a follow-up visit, the current analysis included 1,394 individuals. Those without follow-up visits were younger, had less education and more comorbidities, and took more medications compared with those with a follow-up.

Results showed most CV conditions were more strongly associated with cognitive function among women than men. For example, CHD was associated with global decline only in women (P < .05).

CHD, diabetes, and dyslipidemia were associated with language decline in women only (all, P < .05), but congestive heart failure was significantly associated with language decline in men only.

Dr. Mielke cautioned about reading too much into the language results for women.

“It’s an intriguing finding and definitely we need to follow up on it,” she said. However, “more studies are needed to examine sex differences before we start saying it only has an effect on language.”
 

‘Treat aggressively and right away’

The researchers were somewhat surprised by the study findings. Because there is a higher prevalence of CV conditions and risk factors in men, they presumed men would be more affected by these conditions, said Dr. Mielke.

“But that’s not what we saw; we saw the reverse. It was actually the women who were affected more by these cardiovascular risk factors and conditions,” she said.

As midlife is when women enter menopause, fluctuating estrogen levels may help explain the differential impact on cognition among women. But Dr. Mielke said she wants to “move beyond” just looking at hormones.

She pointed out there are a variety of psychosocial factors that may also contribute to an imbalance in the cognitive impact of CV conditions on women.

“Midlife is when many women are still taking care of their children at home, are also taking care of their adult parents, and may be undergoing more stress while continuing to do a job,” Dr. Miekle said.

Structural brain development and genetics may also contribute to the greater effect on cognition in women, the investigators note.

Dr. Mielke stressed that the current study only identifies associations. “The next steps are to understand what some of the underlying mechanisms for this are,” she said.

In the meantime, these new results suggest middle-aged women with high blood pressure, cholesterol, or glucose measures “should be treated aggressively and right away” said Dr. Mielke.

“For example, for women who are just starting to become hypertensive, clinicians should treat them right away and not watch and wait.”

Study limitations cited include that its sample was limited to Olmsted County, Minnesota – so results may not be generalized to other populations. Also, as researchers combined PVD and stroke into one group, larger sample sizes are needed, especially for stroke. Another limitation was the study did not have information on duration of all CV conditions or risk factors.
 

Helpful for tailoring interventions?

Commenting on the study, Glen R. Finney, MD, director, Memory and Cognition Program, Geisinger Health Clinic, Wilkes-Barre, Pennsylvania, said the results are important.

“The more we understand about risk factors for the development of Alzheimer’s disease and related dementias, the better we understand how we can reduce the risks,” said Dr. Finney, who was not involved with the research.

Awareness that CV conditions are major risk factors in midlife has been “definitely rising,” said Dr. Finney. “Many studies originally were looking at late life and are now looking more at earlier in the disease process, and I think that’s important.”

Understanding how sex, ethnicity, and other demographic variables affect risks can help to “tailor interventions” for individual patients, he said.

The study was supported by the National Institutes of Health, the GHR Foundation, and the Rochester Epidemiology Project. Dr. Mielke is a consultant for Biogen and Brain Protection Company and is on the editorial boards of Neurology and Alzheimer’s and Dementia. Dr. Finney has reported no relevant financial relationships.

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

Statins may be safe when used during pregnancy, with no increase in risk for fetal anomalies, although there may be a higher risk for low birth weight and preterm labor, results of a large study from Taiwan suggest.

The Food and Drug Administration relaxed its warning on statins in July 2021, removing the drug’s blanket contraindication in all pregnant women.

Removal of the broadly worded contraindication should “enable health care professionals and patients to make individual decisions about benefit and risk, especially for those at very high risk of heart attack or stroke,” the FDA said in their announcement.

“Our findings suggested that statins may be used during pregnancy with no increase in the rate of congenital anomalies,” wrote Jui-Chun Chang, MD, from Taichung Veterans General Hospital, Taiwan, and colleagues in the new study, published online Dec. 30, 2021, in JAMA Network Open.

“For pregnant women at low risk, statins should be used carefully after assessing the risks of low birth weight and preterm birth,” they said. “For women with dyslipidemia or high-risk cardiovascular disease, as well as those who use statins before conception, statins may be continuously used with no increased risks of neonatal adverse effects.”

The study included more than 1.4 million pregnant women aged 18 years and older who gave birth to their first child between 2004 and 2014.

A total of 469 women (mean age, 32.6 years; mean gestational age, 38.4 weeks) who used statins during pregnancy were compared with 4,690 matched controls who had no statin exposure during pregnancy.

After controlling for maternal comorbidities and age, women who used statins during pregnancy were more apt to have low-birth-weight babies weighing less than 2,500 g (risk ratio, 1.51; 95% confidence interval, 1.05-2.16) and to deliver preterm (RR, 1.99; 95% CI, 1.46-2.71).

The statin-exposed babies were also more likely to have a lower 1-minute Apgar score (RR, 1.83; 95% CI, 1.04-3.20). Importantly, however, there was no increase in risk for fetal anomalies in the statin-exposed infants, the researchers said.

In addition, for women who used statins for more than 3 months prior to pregnancy, maintaining statin use during pregnancy did not increase the risk for adverse neonatal outcomes, including congenital anomalies, low birth weight, preterm birth, very low birth weight, low Apgar scores, and fetal distress.

The researchers called for further studies to confirm their observations.

Funding for the study was provided by Taichung Veterans General Hospital. The authors have disclosed no relevant financial relationships.

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

Statins may be safe when used during pregnancy, with no increase in risk for fetal anomalies, although there may be a higher risk for low birth weight and preterm labor, results of a large study from Taiwan suggest.

The Food and Drug Administration relaxed its warning on statins in July 2021, removing the drug’s blanket contraindication in all pregnant women.

Removal of the broadly worded contraindication should “enable health care professionals and patients to make individual decisions about benefit and risk, especially for those at very high risk of heart attack or stroke,” the FDA said in their announcement.

“Our findings suggested that statins may be used during pregnancy with no increase in the rate of congenital anomalies,” wrote Jui-Chun Chang, MD, from Taichung Veterans General Hospital, Taiwan, and colleagues in the new study, published online Dec. 30, 2021, in JAMA Network Open.

“For pregnant women at low risk, statins should be used carefully after assessing the risks of low birth weight and preterm birth,” they said. “For women with dyslipidemia or high-risk cardiovascular disease, as well as those who use statins before conception, statins may be continuously used with no increased risks of neonatal adverse effects.”

The study included more than 1.4 million pregnant women aged 18 years and older who gave birth to their first child between 2004 and 2014.

A total of 469 women (mean age, 32.6 years; mean gestational age, 38.4 weeks) who used statins during pregnancy were compared with 4,690 matched controls who had no statin exposure during pregnancy.

After controlling for maternal comorbidities and age, women who used statins during pregnancy were more apt to have low-birth-weight babies weighing less than 2,500 g (risk ratio, 1.51; 95% confidence interval, 1.05-2.16) and to deliver preterm (RR, 1.99; 95% CI, 1.46-2.71).

The statin-exposed babies were also more likely to have a lower 1-minute Apgar score (RR, 1.83; 95% CI, 1.04-3.20). Importantly, however, there was no increase in risk for fetal anomalies in the statin-exposed infants, the researchers said.

In addition, for women who used statins for more than 3 months prior to pregnancy, maintaining statin use during pregnancy did not increase the risk for adverse neonatal outcomes, including congenital anomalies, low birth weight, preterm birth, very low birth weight, low Apgar scores, and fetal distress.

The researchers called for further studies to confirm their observations.

Funding for the study was provided by Taichung Veterans General Hospital. The authors have disclosed no relevant financial relationships.

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

Statins may be safe when used during pregnancy, with no increase in risk for fetal anomalies, although there may be a higher risk for low birth weight and preterm labor, results of a large study from Taiwan suggest.

The Food and Drug Administration relaxed its warning on statins in July 2021, removing the drug’s blanket contraindication in all pregnant women.

Removal of the broadly worded contraindication should “enable health care professionals and patients to make individual decisions about benefit and risk, especially for those at very high risk of heart attack or stroke,” the FDA said in their announcement.

“Our findings suggested that statins may be used during pregnancy with no increase in the rate of congenital anomalies,” wrote Jui-Chun Chang, MD, from Taichung Veterans General Hospital, Taiwan, and colleagues in the new study, published online Dec. 30, 2021, in JAMA Network Open.

“For pregnant women at low risk, statins should be used carefully after assessing the risks of low birth weight and preterm birth,” they said. “For women with dyslipidemia or high-risk cardiovascular disease, as well as those who use statins before conception, statins may be continuously used with no increased risks of neonatal adverse effects.”

The study included more than 1.4 million pregnant women aged 18 years and older who gave birth to their first child between 2004 and 2014.

A total of 469 women (mean age, 32.6 years; mean gestational age, 38.4 weeks) who used statins during pregnancy were compared with 4,690 matched controls who had no statin exposure during pregnancy.

After controlling for maternal comorbidities and age, women who used statins during pregnancy were more apt to have low-birth-weight babies weighing less than 2,500 g (risk ratio, 1.51; 95% confidence interval, 1.05-2.16) and to deliver preterm (RR, 1.99; 95% CI, 1.46-2.71).

The statin-exposed babies were also more likely to have a lower 1-minute Apgar score (RR, 1.83; 95% CI, 1.04-3.20). Importantly, however, there was no increase in risk for fetal anomalies in the statin-exposed infants, the researchers said.

In addition, for women who used statins for more than 3 months prior to pregnancy, maintaining statin use during pregnancy did not increase the risk for adverse neonatal outcomes, including congenital anomalies, low birth weight, preterm birth, very low birth weight, low Apgar scores, and fetal distress.

The researchers called for further studies to confirm their observations.

Funding for the study was provided by Taichung Veterans General Hospital. The authors have disclosed no relevant financial relationships.

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

The Food and Drug Administration has approved inclisiran (Leqvio) as an adjunct to statins for further reduction of LDL cholesterol levels, the drug’s developer, Novartis, announced on Dec. 22, 2021.

The first-in-class small interfering RNA (siRNA) agent is also novel among peer drug therapies for its administration by injection initially, at 3 months, and thereafter twice per year.

Inclisiran is indicated for use atop maximally tolerated statins in adults with clinical cardiovascular disease or in patients with heterozygous familial hypercholesterolemia, the company reported.

Such patients who received inclisiran, compared with placebo, in the ORION-9, ORION-10, and ORION-11 randomized trials on which the FDA approval was based showed LDL-C reductions exceeding 50% over 1-2 years.

The drug works by “silencing” RNA involved in synthesis of PCSK9, which has a role in controlling the number of LDL cholesterol cell-surface receptors, a unique mechanism of action among available treatments for dyslipidemia.

Novartis, the company said, “has obtained global rights to develop, manufacture, and commercialize Leqvio under a license and collaboration agreement with Alnylam Pharmaceuticals.”

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

The Food and Drug Administration has approved inclisiran (Leqvio) as an adjunct to statins for further reduction of LDL cholesterol levels, the drug’s developer, Novartis, announced on Dec. 22, 2021.

The first-in-class small interfering RNA (siRNA) agent is also novel among peer drug therapies for its administration by injection initially, at 3 months, and thereafter twice per year.

Inclisiran is indicated for use atop maximally tolerated statins in adults with clinical cardiovascular disease or in patients with heterozygous familial hypercholesterolemia, the company reported.

Such patients who received inclisiran, compared with placebo, in the ORION-9, ORION-10, and ORION-11 randomized trials on which the FDA approval was based showed LDL-C reductions exceeding 50% over 1-2 years.

The drug works by “silencing” RNA involved in synthesis of PCSK9, which has a role in controlling the number of LDL cholesterol cell-surface receptors, a unique mechanism of action among available treatments for dyslipidemia.

Novartis, the company said, “has obtained global rights to develop, manufacture, and commercialize Leqvio under a license and collaboration agreement with Alnylam Pharmaceuticals.”

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

The Food and Drug Administration has approved inclisiran (Leqvio) as an adjunct to statins for further reduction of LDL cholesterol levels, the drug’s developer, Novartis, announced on Dec. 22, 2021.

The first-in-class small interfering RNA (siRNA) agent is also novel among peer drug therapies for its administration by injection initially, at 3 months, and thereafter twice per year.

Inclisiran is indicated for use atop maximally tolerated statins in adults with clinical cardiovascular disease or in patients with heterozygous familial hypercholesterolemia, the company reported.

Such patients who received inclisiran, compared with placebo, in the ORION-9, ORION-10, and ORION-11 randomized trials on which the FDA approval was based showed LDL-C reductions exceeding 50% over 1-2 years.

The drug works by “silencing” RNA involved in synthesis of PCSK9, which has a role in controlling the number of LDL cholesterol cell-surface receptors, a unique mechanism of action among available treatments for dyslipidemia.

Novartis, the company said, “has obtained global rights to develop, manufacture, and commercialize Leqvio under a license and collaboration agreement with Alnylam Pharmaceuticals.”

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

When holiday shoppers recently went to their local liquor stores in search of some liquid spirit, many were instead greeted by the sight of increasingly barren shelves.

ThinkStock

Although partly a result of global supply chain issues, this was also yet more evidence of the rising demand for alcohol among adults during these difficult COVID years. It’s a trend that has led to concerns of an echo pandemic of alcohol-related morbidity, which has begun to play out in the form of rising rates of gastrointestinal and liver disease, hospital admissions for alcoholic hepatitis, and alcohol-related incidents of domestic violence.

Those who imbibe alcohol in low to moderate levels may not see themselves reflected in such stories of drinking’s hefty tolls. They’re instead following established health guidance that a little bit of alcohol now and then actually has robust health benefits. Yet the past few of years have seen a notable fraying of this idea, as emerging data calls into question whether alcohol in moderation should really continue to be just what the doctor ordered. 
 

Behind the curve: Alcohol’s diminishing cardioprotective value

Perhaps the most resonant argument for the benefits of light to moderate alcohol consumption – usually defined as between one to two drinks a day – has been its proposed cardioprotective value. In this way, alcohol differs from tobacco, which is unsafe at any level. Alcohol’s proposed cardioprotective effects are often represented as a J-shaped curve, with moderate drinking occupying the sweet spot between teetotaling and heavy/binge drinking when it comes to reduced mortality.

In reality, this association is more likely “a statistical artifact” largely derived from low-quality observational studies, according to Christopher Labos, MD, CM, MSc, an epidemiologist and cardiologist at the Queen Elizabeth Health Complex in Montreal.

“When you look at studies that correct for things like reverse causation, or the fact that some people who drink zero alcohol are former drinkers who used to drink alcohol, then you realize that the protective benefit of alcohol is either minimal or nonexistent and that alcohol does more harm than good to our society,” said Dr. Labos, who detailed the reasons underpinning alcohol’s unearned cardioprotective reputation in a 2020 Medscape commentary.

This statistical limitation was on display in July 2021 when BMC Medicine published results from meta-analyses suggesting that current drinkers need not stop consuming small amounts of alcohol for the secondary prevention of cardiovascular disease (CVD). The study’s own investigators noted that it likely overestimated the reduced risk of CVD by including former heavy drinkers as nondrinkers.

Even if the J-shaped curve exists, its simplicity is deceiving. CVD risk increases alongside alcohol consumption owning to a complicated array of genetic and lifestyle factors. The curve also presents something of a catch-22. If you like alcohol enough to drink it every day, staying at the nadir of the curve where you’d gain the most benefits may prove challenging.

Another factor dimming alcohol’s cardioprotective reputation came via recent data that atrial fibrillation episodes can be triggered by acute alcohol use. A randomized, controlled trial published in the New England Journal of Medicine concluded that abstinence reduced arrhythmia recurrences in regular drinkers with atrial fibrillation.

“If we can replicate that, I think we’ll find that reducing alcohol consumption might be a very effective way to prevent and treat atrial fibrillation,” said Dr. Labos.

However, J-curve proponents will note the publication of study data from the UK Biobank indicating that low levels of alcohol consumption confers the greatest reduction in atrial fibrillation risk.
 

An overlooked carcinogen no longer  

Surveys indicate that less than half of Americans realize alcohol increases cancer risk. That might have changed just a bit this year. In early 2021, an epidemiological analysis estimated that alcohol contributed to 4.8% of cancer cases and 3.2% of cancer deaths in the United States. Then the Lancet Oncology published the results of a high-profile, population-based study on the global burden of cancer as a result of alcoho. Although the main takeaway message was that 4% of new cancer cases worldwide in 2020 were attributable to alcohol, it was also noteworthy that moderate drinking accounted for 103,100 out of 741,300 of these projected annual cases.

“The risk of cancer increases even with low or moderate levels of drinking,” said the study’s lead author Harriet Rumgay, BSc, from the International Agency for Research on Cancer in Lyon, France. “Drinking less means you’ll have a lower risk of cancer than if you drink heavily, but there is no safe limit of alcohol consumption.”

The study linked alcohol consumption with an increased risk of at least seven different cancer types, including cancers of the oral cavity, pharynx, larynx, esophagus, colon, rectum, liver, and breast.

Although in North America men represented about two-thirds of the burden of cancer caused by alcohol, Ms. Rumgay added that “low and moderate levels of drinking [one or two alcoholic drinks per day] contributed relatively more cancer cases among women than among men.”

Yet more negative news for moderate alcohol drinkers arrived in August 2021, when a team of South Korean researchers published data in JAMA Network Open showing that, when it came to the risk of developing gastrointestinal cancers, even binge drinking may be preferable to continuous but moderate consumption.

Perhaps the changing perception of alcohol’s carcinogenic potential is best summed up by the American Cancer Society, who in updating its guidelines in 2020 after an 8-year interim offered this succinct piece of advice: “It is best not to drink alcohol.” 
 

Neurotoxic implications

There has similarly been a reconsideration of the effects of moderate alcohol consumption on brain health.

A recent report of multimodal MRI brain and cognitive testing data from over 25,000 participants in the UK Biobank study indicate that alcohol may have no safe dosage . Even moderate consumption reduced gray matter volume and functional connectivity, negative associations that were increased in those with higher blood pressure and body mass index.

Speaking with this news organization in May 2021, an investigator said: “The size of the effect is small, albeit greater than any other modifiable risk factor,” noting that the changes have been linked to decreased memory and dementia.

Louise Mewton, PhD, from the Center for Healthy Brain Aging at the University of New South Wales, Sydney, said that these results provide an interesting comparison with others into the association between alcohol and dementia.

“A recent study of over 1 million dementia cases in France indicated that problematic alcohol use (alcohol use disorders) were one of the strongest risk factors for dementia – even more so than things like high blood pressure and diabetes,” Dr. Mewton said in an interview. In comparison, “the most-recent reviews indicate that 4 drinks/week is associated with the lowest risk for dementia – so we’re talking about very low levels of alcohol use in terms of maintaining brain health.

“Understanding why very small amounts of alcohol appear to be protective in terms of dementia but damaging when we look at brain scans is something that would be really interesting to unpack.”

Dr. Mewton and colleagues recently published data suggesting that there are three periods when the brain might be particularly susceptible to alcohol’s neurotoxic effects: gestation (from conception to birth), later adolescence (15-19 years), and older adulthood (over 65 years). Directing behavioral interventions to patients in these stages may therefore be beneficial.

And there’s no time too soon to promote abstinence among those with alcohol use disorder, as brain damage is shown to still occur even in the immediate period after people cease drinking.

Although in one more argument for the J-shaped curve’s relevance, data from the Massachusetts General Brigham Biobank recently indicated that moderate alcohol use, unlike low and heavy use, lowered both stress-related neurobiological activity and major adverse cardiovascular events.
 

Getting patients to reconsider alcohol’s ‘benefits’

These new findings mean physicians will find themselves imparting a more nuanced message about the health impacts of moderate alcohol consumption than in prior years. To aid those efforts, Ms. Rumgay advised clinicians to consult a special issue of the journal Nutrients that features review articles of alcohol›s impact on various health outcomes.

Ms. Rumgay also supports broader policy changes.

“There is some evidence that adding cancer warnings to alcohol labels, similar to those used on cigarette packages, might deter people from purchasing alcohol products and increase awareness of the causal link with cancer,” she said. “But the most effective ways of reducing alcohol use in the population are through increasing the price of alcohol through higher taxes, limiting purchasing availability, and reducing marketing of alcohol brands to the public.”

Dr. Mewton recommended various interventions for patients who still find it difficult to curtail their drinking.

“For less severe, problematic use, things like cognitive-behavioral therapy and motivational therapy are very effective in reducing alcohol consumption,” she said in an interview.

For all the discussion about how the COVID-19 pandemic has exacerbated problematic drinking, it has also provided an opportunity for getting patients to reexamine their relationship to alcohol. And as Dr. Labos noted, emerging data on alcohol’s negative effects probably won’t be considered earth-shattering to most patients.

“Deep down, I think most people know that alcohol is not healthy, but it is part of our social culture and so we find ways to justify our own behavior,” he said in an interview.

Dr. Labos suggested that clinicians reframe alcohol in their patients’ minds for what it really is – “an indulgence that we shouldn’t have too much of very often.

“Just like junk food, that doesn’t mean we can’t enjoy small amounts occasionally, but we have to stop presenting that it is good for us, because it isn’t.”

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

When holiday shoppers recently went to their local liquor stores in search of some liquid spirit, many were instead greeted by the sight of increasingly barren shelves.

ThinkStock

Although partly a result of global supply chain issues, this was also yet more evidence of the rising demand for alcohol among adults during these difficult COVID years. It’s a trend that has led to concerns of an echo pandemic of alcohol-related morbidity, which has begun to play out in the form of rising rates of gastrointestinal and liver disease, hospital admissions for alcoholic hepatitis, and alcohol-related incidents of domestic violence.

Those who imbibe alcohol in low to moderate levels may not see themselves reflected in such stories of drinking’s hefty tolls. They’re instead following established health guidance that a little bit of alcohol now and then actually has robust health benefits. Yet the past few of years have seen a notable fraying of this idea, as emerging data calls into question whether alcohol in moderation should really continue to be just what the doctor ordered. 
 

Behind the curve: Alcohol’s diminishing cardioprotective value

Perhaps the most resonant argument for the benefits of light to moderate alcohol consumption – usually defined as between one to two drinks a day – has been its proposed cardioprotective value. In this way, alcohol differs from tobacco, which is unsafe at any level. Alcohol’s proposed cardioprotective effects are often represented as a J-shaped curve, with moderate drinking occupying the sweet spot between teetotaling and heavy/binge drinking when it comes to reduced mortality.

In reality, this association is more likely “a statistical artifact” largely derived from low-quality observational studies, according to Christopher Labos, MD, CM, MSc, an epidemiologist and cardiologist at the Queen Elizabeth Health Complex in Montreal.

“When you look at studies that correct for things like reverse causation, or the fact that some people who drink zero alcohol are former drinkers who used to drink alcohol, then you realize that the protective benefit of alcohol is either minimal or nonexistent and that alcohol does more harm than good to our society,” said Dr. Labos, who detailed the reasons underpinning alcohol’s unearned cardioprotective reputation in a 2020 Medscape commentary.

This statistical limitation was on display in July 2021 when BMC Medicine published results from meta-analyses suggesting that current drinkers need not stop consuming small amounts of alcohol for the secondary prevention of cardiovascular disease (CVD). The study’s own investigators noted that it likely overestimated the reduced risk of CVD by including former heavy drinkers as nondrinkers.

Even if the J-shaped curve exists, its simplicity is deceiving. CVD risk increases alongside alcohol consumption owning to a complicated array of genetic and lifestyle factors. The curve also presents something of a catch-22. If you like alcohol enough to drink it every day, staying at the nadir of the curve where you’d gain the most benefits may prove challenging.

Another factor dimming alcohol’s cardioprotective reputation came via recent data that atrial fibrillation episodes can be triggered by acute alcohol use. A randomized, controlled trial published in the New England Journal of Medicine concluded that abstinence reduced arrhythmia recurrences in regular drinkers with atrial fibrillation.

“If we can replicate that, I think we’ll find that reducing alcohol consumption might be a very effective way to prevent and treat atrial fibrillation,” said Dr. Labos.

However, J-curve proponents will note the publication of study data from the UK Biobank indicating that low levels of alcohol consumption confers the greatest reduction in atrial fibrillation risk.
 

An overlooked carcinogen no longer  

Surveys indicate that less than half of Americans realize alcohol increases cancer risk. That might have changed just a bit this year. In early 2021, an epidemiological analysis estimated that alcohol contributed to 4.8% of cancer cases and 3.2% of cancer deaths in the United States. Then the Lancet Oncology published the results of a high-profile, population-based study on the global burden of cancer as a result of alcoho. Although the main takeaway message was that 4% of new cancer cases worldwide in 2020 were attributable to alcohol, it was also noteworthy that moderate drinking accounted for 103,100 out of 741,300 of these projected annual cases.

“The risk of cancer increases even with low or moderate levels of drinking,” said the study’s lead author Harriet Rumgay, BSc, from the International Agency for Research on Cancer in Lyon, France. “Drinking less means you’ll have a lower risk of cancer than if you drink heavily, but there is no safe limit of alcohol consumption.”

The study linked alcohol consumption with an increased risk of at least seven different cancer types, including cancers of the oral cavity, pharynx, larynx, esophagus, colon, rectum, liver, and breast.

Although in North America men represented about two-thirds of the burden of cancer caused by alcohol, Ms. Rumgay added that “low and moderate levels of drinking [one or two alcoholic drinks per day] contributed relatively more cancer cases among women than among men.”

Yet more negative news for moderate alcohol drinkers arrived in August 2021, when a team of South Korean researchers published data in JAMA Network Open showing that, when it came to the risk of developing gastrointestinal cancers, even binge drinking may be preferable to continuous but moderate consumption.

Perhaps the changing perception of alcohol’s carcinogenic potential is best summed up by the American Cancer Society, who in updating its guidelines in 2020 after an 8-year interim offered this succinct piece of advice: “It is best not to drink alcohol.” 
 

Neurotoxic implications

There has similarly been a reconsideration of the effects of moderate alcohol consumption on brain health.

A recent report of multimodal MRI brain and cognitive testing data from over 25,000 participants in the UK Biobank study indicate that alcohol may have no safe dosage . Even moderate consumption reduced gray matter volume and functional connectivity, negative associations that were increased in those with higher blood pressure and body mass index.

Speaking with this news organization in May 2021, an investigator said: “The size of the effect is small, albeit greater than any other modifiable risk factor,” noting that the changes have been linked to decreased memory and dementia.

Louise Mewton, PhD, from the Center for Healthy Brain Aging at the University of New South Wales, Sydney, said that these results provide an interesting comparison with others into the association between alcohol and dementia.

“A recent study of over 1 million dementia cases in France indicated that problematic alcohol use (alcohol use disorders) were one of the strongest risk factors for dementia – even more so than things like high blood pressure and diabetes,” Dr. Mewton said in an interview. In comparison, “the most-recent reviews indicate that 4 drinks/week is associated with the lowest risk for dementia – so we’re talking about very low levels of alcohol use in terms of maintaining brain health.

“Understanding why very small amounts of alcohol appear to be protective in terms of dementia but damaging when we look at brain scans is something that would be really interesting to unpack.”

Dr. Mewton and colleagues recently published data suggesting that there are three periods when the brain might be particularly susceptible to alcohol’s neurotoxic effects: gestation (from conception to birth), later adolescence (15-19 years), and older adulthood (over 65 years). Directing behavioral interventions to patients in these stages may therefore be beneficial.

And there’s no time too soon to promote abstinence among those with alcohol use disorder, as brain damage is shown to still occur even in the immediate period after people cease drinking.

Although in one more argument for the J-shaped curve’s relevance, data from the Massachusetts General Brigham Biobank recently indicated that moderate alcohol use, unlike low and heavy use, lowered both stress-related neurobiological activity and major adverse cardiovascular events.
 

Getting patients to reconsider alcohol’s ‘benefits’

These new findings mean physicians will find themselves imparting a more nuanced message about the health impacts of moderate alcohol consumption than in prior years. To aid those efforts, Ms. Rumgay advised clinicians to consult a special issue of the journal Nutrients that features review articles of alcohol›s impact on various health outcomes.

Ms. Rumgay also supports broader policy changes.

“There is some evidence that adding cancer warnings to alcohol labels, similar to those used on cigarette packages, might deter people from purchasing alcohol products and increase awareness of the causal link with cancer,” she said. “But the most effective ways of reducing alcohol use in the population are through increasing the price of alcohol through higher taxes, limiting purchasing availability, and reducing marketing of alcohol brands to the public.”

Dr. Mewton recommended various interventions for patients who still find it difficult to curtail their drinking.

“For less severe, problematic use, things like cognitive-behavioral therapy and motivational therapy are very effective in reducing alcohol consumption,” she said in an interview.

For all the discussion about how the COVID-19 pandemic has exacerbated problematic drinking, it has also provided an opportunity for getting patients to reexamine their relationship to alcohol. And as Dr. Labos noted, emerging data on alcohol’s negative effects probably won’t be considered earth-shattering to most patients.

“Deep down, I think most people know that alcohol is not healthy, but it is part of our social culture and so we find ways to justify our own behavior,” he said in an interview.

Dr. Labos suggested that clinicians reframe alcohol in their patients’ minds for what it really is – “an indulgence that we shouldn’t have too much of very often.

“Just like junk food, that doesn’t mean we can’t enjoy small amounts occasionally, but we have to stop presenting that it is good for us, because it isn’t.”

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

When holiday shoppers recently went to their local liquor stores in search of some liquid spirit, many were instead greeted by the sight of increasingly barren shelves.

ThinkStock

Although partly a result of global supply chain issues, this was also yet more evidence of the rising demand for alcohol among adults during these difficult COVID years. It’s a trend that has led to concerns of an echo pandemic of alcohol-related morbidity, which has begun to play out in the form of rising rates of gastrointestinal and liver disease, hospital admissions for alcoholic hepatitis, and alcohol-related incidents of domestic violence.

Those who imbibe alcohol in low to moderate levels may not see themselves reflected in such stories of drinking’s hefty tolls. They’re instead following established health guidance that a little bit of alcohol now and then actually has robust health benefits. Yet the past few of years have seen a notable fraying of this idea, as emerging data calls into question whether alcohol in moderation should really continue to be just what the doctor ordered. 
 

Behind the curve: Alcohol’s diminishing cardioprotective value

Perhaps the most resonant argument for the benefits of light to moderate alcohol consumption – usually defined as between one to two drinks a day – has been its proposed cardioprotective value. In this way, alcohol differs from tobacco, which is unsafe at any level. Alcohol’s proposed cardioprotective effects are often represented as a J-shaped curve, with moderate drinking occupying the sweet spot between teetotaling and heavy/binge drinking when it comes to reduced mortality.

In reality, this association is more likely “a statistical artifact” largely derived from low-quality observational studies, according to Christopher Labos, MD, CM, MSc, an epidemiologist and cardiologist at the Queen Elizabeth Health Complex in Montreal.

“When you look at studies that correct for things like reverse causation, or the fact that some people who drink zero alcohol are former drinkers who used to drink alcohol, then you realize that the protective benefit of alcohol is either minimal or nonexistent and that alcohol does more harm than good to our society,” said Dr. Labos, who detailed the reasons underpinning alcohol’s unearned cardioprotective reputation in a 2020 Medscape commentary.

This statistical limitation was on display in July 2021 when BMC Medicine published results from meta-analyses suggesting that current drinkers need not stop consuming small amounts of alcohol for the secondary prevention of cardiovascular disease (CVD). The study’s own investigators noted that it likely overestimated the reduced risk of CVD by including former heavy drinkers as nondrinkers.

Even if the J-shaped curve exists, its simplicity is deceiving. CVD risk increases alongside alcohol consumption owning to a complicated array of genetic and lifestyle factors. The curve also presents something of a catch-22. If you like alcohol enough to drink it every day, staying at the nadir of the curve where you’d gain the most benefits may prove challenging.

Another factor dimming alcohol’s cardioprotective reputation came via recent data that atrial fibrillation episodes can be triggered by acute alcohol use. A randomized, controlled trial published in the New England Journal of Medicine concluded that abstinence reduced arrhythmia recurrences in regular drinkers with atrial fibrillation.

“If we can replicate that, I think we’ll find that reducing alcohol consumption might be a very effective way to prevent and treat atrial fibrillation,” said Dr. Labos.

However, J-curve proponents will note the publication of study data from the UK Biobank indicating that low levels of alcohol consumption confers the greatest reduction in atrial fibrillation risk.
 

An overlooked carcinogen no longer  

Surveys indicate that less than half of Americans realize alcohol increases cancer risk. That might have changed just a bit this year. In early 2021, an epidemiological analysis estimated that alcohol contributed to 4.8% of cancer cases and 3.2% of cancer deaths in the United States. Then the Lancet Oncology published the results of a high-profile, population-based study on the global burden of cancer as a result of alcoho. Although the main takeaway message was that 4% of new cancer cases worldwide in 2020 were attributable to alcohol, it was also noteworthy that moderate drinking accounted for 103,100 out of 741,300 of these projected annual cases.

“The risk of cancer increases even with low or moderate levels of drinking,” said the study’s lead author Harriet Rumgay, BSc, from the International Agency for Research on Cancer in Lyon, France. “Drinking less means you’ll have a lower risk of cancer than if you drink heavily, but there is no safe limit of alcohol consumption.”

The study linked alcohol consumption with an increased risk of at least seven different cancer types, including cancers of the oral cavity, pharynx, larynx, esophagus, colon, rectum, liver, and breast.

Although in North America men represented about two-thirds of the burden of cancer caused by alcohol, Ms. Rumgay added that “low and moderate levels of drinking [one or two alcoholic drinks per day] contributed relatively more cancer cases among women than among men.”

Yet more negative news for moderate alcohol drinkers arrived in August 2021, when a team of South Korean researchers published data in JAMA Network Open showing that, when it came to the risk of developing gastrointestinal cancers, even binge drinking may be preferable to continuous but moderate consumption.

Perhaps the changing perception of alcohol’s carcinogenic potential is best summed up by the American Cancer Society, who in updating its guidelines in 2020 after an 8-year interim offered this succinct piece of advice: “It is best not to drink alcohol.” 
 

Neurotoxic implications

There has similarly been a reconsideration of the effects of moderate alcohol consumption on brain health.

A recent report of multimodal MRI brain and cognitive testing data from over 25,000 participants in the UK Biobank study indicate that alcohol may have no safe dosage . Even moderate consumption reduced gray matter volume and functional connectivity, negative associations that were increased in those with higher blood pressure and body mass index.

Speaking with this news organization in May 2021, an investigator said: “The size of the effect is small, albeit greater than any other modifiable risk factor,” noting that the changes have been linked to decreased memory and dementia.

Louise Mewton, PhD, from the Center for Healthy Brain Aging at the University of New South Wales, Sydney, said that these results provide an interesting comparison with others into the association between alcohol and dementia.

“A recent study of over 1 million dementia cases in France indicated that problematic alcohol use (alcohol use disorders) were one of the strongest risk factors for dementia – even more so than things like high blood pressure and diabetes,” Dr. Mewton said in an interview. In comparison, “the most-recent reviews indicate that 4 drinks/week is associated with the lowest risk for dementia – so we’re talking about very low levels of alcohol use in terms of maintaining brain health.

“Understanding why very small amounts of alcohol appear to be protective in terms of dementia but damaging when we look at brain scans is something that would be really interesting to unpack.”

Dr. Mewton and colleagues recently published data suggesting that there are three periods when the brain might be particularly susceptible to alcohol’s neurotoxic effects: gestation (from conception to birth), later adolescence (15-19 years), and older adulthood (over 65 years). Directing behavioral interventions to patients in these stages may therefore be beneficial.

And there’s no time too soon to promote abstinence among those with alcohol use disorder, as brain damage is shown to still occur even in the immediate period after people cease drinking.

Although in one more argument for the J-shaped curve’s relevance, data from the Massachusetts General Brigham Biobank recently indicated that moderate alcohol use, unlike low and heavy use, lowered both stress-related neurobiological activity and major adverse cardiovascular events.
 

Getting patients to reconsider alcohol’s ‘benefits’

These new findings mean physicians will find themselves imparting a more nuanced message about the health impacts of moderate alcohol consumption than in prior years. To aid those efforts, Ms. Rumgay advised clinicians to consult a special issue of the journal Nutrients that features review articles of alcohol›s impact on various health outcomes.

Ms. Rumgay also supports broader policy changes.

“There is some evidence that adding cancer warnings to alcohol labels, similar to those used on cigarette packages, might deter people from purchasing alcohol products and increase awareness of the causal link with cancer,” she said. “But the most effective ways of reducing alcohol use in the population are through increasing the price of alcohol through higher taxes, limiting purchasing availability, and reducing marketing of alcohol brands to the public.”

Dr. Mewton recommended various interventions for patients who still find it difficult to curtail their drinking.

“For less severe, problematic use, things like cognitive-behavioral therapy and motivational therapy are very effective in reducing alcohol consumption,” she said in an interview.

For all the discussion about how the COVID-19 pandemic has exacerbated problematic drinking, it has also provided an opportunity for getting patients to reexamine their relationship to alcohol. And as Dr. Labos noted, emerging data on alcohol’s negative effects probably won’t be considered earth-shattering to most patients.

“Deep down, I think most people know that alcohol is not healthy, but it is part of our social culture and so we find ways to justify our own behavior,” he said in an interview.

Dr. Labos suggested that clinicians reframe alcohol in their patients’ minds for what it really is – “an indulgence that we shouldn’t have too much of very often.

“Just like junk food, that doesn’t mean we can’t enjoy small amounts occasionally, but we have to stop presenting that it is good for us, because it isn’t.”

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