Author Interviews, Gender Differences, Heart Disease, NYU/NYMC, Women's Heart Health / 06.04.2016
Women With Obstructive Coronary Artery Disease Have Higher Mortality Than Men
MedicalResearch.com Interview with:
Nathaniel Smilowitz, MD
Fellow, Cardiovascular Disease
NYU Langone Medical Center
MeicalResearch: What is the background for this study? What are the main findings?
Dr. Smilowitz: Myocardial infarction (MI), commonly known as a heart attack, is a leading cause of death worldwide. In the majority of patients with MI, examination of the coronary blood vessels by angiography reveals an obstruction that limits blood flow to the heart muscle. However, some patients develop MI with non-obstructive coronary arteries (MINOCA) at angiography. This condition is identified more commonly in younger patients and women, and in prior studies, in-hospital death after MINOCA was lower than for MI with obstructive coronary artery disease (MI-CAD). Despite favorable outcomes associated with MINOCA, young women paradoxically have overall higher in-hospital death after MI in comparison to younger men. Although sex differences in post-MI mortality are known to vary with age, the interaction between age, sex, and the presence of obstructive coronary artery disease at angiography on death post-MI had not been previously established.
In this study, we confirmed that in-hospital mortality is lower after MINOCA than MI-CAD and that women are more likely to have MINOCA than men. No sex difference in mortality was observed among patients with MINOCA, but women of all ages had significantly higher mortality after MI-CAD than men. With advancing age, mortality increased to a greater degree in patients with MI-CAD than MINOCA and in men vs. women.






Dr. Sherry Grace[/caption]
MedicalResearch.com Interview with:
Sherry L. Grace, PhD
Professor, York University
Senior Scientist, University Health Network
University of Toronto
MedicalResearch: What is the background for this study? What are the main findings?
Dr. Grace: Cardiovascular disease (CVD) is the leading cause of morbidity and mortality for women world-wide. Cardiac rehabilitation (CR) is an outpatient secondary prevention program composed of structured exercise and comprehensive education and counseling.Cardiac rehabilitation participation results in lower morbidity and mortality, among other benefits. Unfortunately, women are significantly less likely to adhere to these programs than men.
While the traditional model of Cardiac rehabilitation care is a hospital-based mixed-sex program, women are the minority in such programs, and state that these programs do not meet their care preferences. Two other models of CR care have been developed: hospital-based women-only (sex-specific) and monitored home-based programs. Women’s adherence to these program models is not well known.
Cardiac Rehabilitation for her Heart Event Recovery (CR4HER) was a 3 parallel arm pragmatic randomized controlled trial (RCT) designed to compare women’s program adherence to traditional hospital-based CR with males and females attending (mixed-sex), home-based CR (bi-weekly phone calls), and women-only hospital-based CR. The primary outcome was program adherence operationalized as Cardiac rehabilitation site-reported percentage of prescribed sessions completed by phone or on-site, as reported by a staff member who was blind to study objectives. The secondary outcomes included functional capacity. It was hoped that by identifying the CR program model which resulted in the greatest adherence for women, their participation and potentially their cardiac outcomes could be optimized.
MedicalResearch: What are the main findings?
Dr. Grace: Similar to previous research, we found that women did not adhere very highly to the Cardiac rehabilitation programs. Half of the women dropped out of CR, and this occurred regardless of the type of program they went to. Some women did not even start 











