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Studying Women’s Heart Health

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Studying Women’s Heart Health

Researchers hope someday a special focus on women’s heart disease will be obsolete

New research released Tuesday looked at women’s cardiovascular health and are highlighted in the annual women’s issue of Circulation: Cardiovascular Quality and Outcomes, an American Heart Association journal.

The issue focuses on research promoting the prevention, diagnosis and treatment of heart disease in women—the No. 1 killer of women in the United States.

“With this issue, we strive to create a future in which a special issue on women’s cardiovascular health is obsolete,” said Harlan Krumholz, M.D., editor of the journal, director of the Center of Outcomes Research and Evaluation at Yale-New Haven Hospital and a professor in Yale’s schools of medicine and public health in New Haven, Connecticut. “We will know that we have arrived when an abundance of research on the topic of women’s health that generates knowledge to improve the care and outcomes of a formerly neglected population is commonplace.”

Among the findings in the issue:

Despite having less severe coronary artery disease (CAD) than men the same age, women younger than age 50, were at greater risk for recurrent vessel blockage and adverse events after having percutaneous coronary intervention, a procedure to open narrowed or blocked blood vessels.  For five years, researchers followed 10,963 patients. While procedural success rates were similar by sex, the cumulative rate of major adverse events was higher in young women at one- and five year follow-ups. “Because of their many years of remaining life expectancy that are threatened by early onset CAD, young women with CAD are a population that warrants special attention,” the authors wrote in their conclusion.
Among adults with acute coronary syndrome or stable angina and obstructive buildup of plaques in the heart, women, as compared to men, were at significantly higher risk of adverse events (i.e., death and readmission for angina, heart attack, stroke and heart failure), regardless of ethnicity. A key finding of the study was that hospital readmission for angina was the most common adverse event, accounting for 45percent of all observed events. This finding was observed among all sex-ethnic groups, except among the Chinese women whose adverse outcome was driven by higher death rates. The study, conducted in British Columbia, Canada, involved 49,556 patients (25.6 percent women), of which 65.9 percent had acute coronary syndrome. The study suggests a need for more targeted cardiac care and research for women across different ethnicities.
Women were less likely than men to receive optimal care at hospital discharge when admitted for coronary artery disease, and more likely to die within three years, according to a study of 49,358 patients ages 65 and older across 366 U.S. hospitals. Study data were collected through the American Heart Association’s Get With the Guidelines Coronary Artery Disease registry over six years. African Americans, compared with whites, were also more likely to die from coronary artery disease, though this disparity could not be accounted for by differences in the quality of care. Researchers concluded that about 69 percent of the sex disparity in deaths could potentially be reduced or greatly eliminated by providing optimal and equitable quality of care to women.
Women with anxiety and no history of coronary artery disease had higher rates of reduced blood flow compared to women without anxiety. A Canadian study assessed the connection between mood, anxiety and myocardial ischemia (reduced blood flow to the heart) in women and men with and without coronary artery disease. The research indicates anxiety symptoms, many of which overlap with those of coronary artery disease, might mask heart disease symptoms among women—but not men—and contribute to referral and diagnostic delays for women.
Compared to young men, young women may be slightly less likely to return to work a year after a heart attack. The study included 1,680 heart attack patients ages 18 to 55 (57 percent women) who were working full time before having a heart attack. Statistically, however, the differences between men and women were not significant after adjusting for several health factors. In this study, women were less likely to be married and were more likely to have professional or clerical jobs than men, which is associated with lower likelihood of returning to work.
An analysis of 69,505 middle-aged U.S. women in the Nurses’ Health Study II showed a strong association between a lifestyle-based risk prediction model and the development of cardiovascular disease risk factors, including diabetes, hypertension and high cholesterol. The Healthy Heart Score estimates the 20-year risk of cardiovascular disease based on nine lifestyle factors. A higher score reflects a higher risk of cardiovascular disease. Women with higher predicted risk of heart disease based on the Healthy Heart Score had significantly greater risk of each risk factor individually. The study calls for additional research to evaluate the use of the tool as a strategy for preventing the development of heart risk factors.
Women who gave birth four times or more had the highest odds of developing metabolic syndrome risk factors such as abdominal obesity, elevated fasting glucose and low good cholesterol—all of which raise the risk of heart disease. The analysis was performed among 7,467 women ages 18 to 74 in the Hispanic Community Health Study/Study of Latinos. The study stresses the importance of considering the number of births as a risk factor for developing metabolic and cardiovascular disorders among Hispanic/Latina women.
[Related: Is a Large Family Hard on Your Heart?]

Women had a 53 percent higher risk of developing peripheral artery disease (PAD) before age 70, compared to men, in a study examining how PAD in chronic kidney disease differs based on gender and age. The prospective study involved 3,174 participants with chronic kidney disease from the multi-center Chronic Renal Insufficiency Cohort. Researchers recommend future studies to better understand the impact of earlier detection of the disease in women and the biological and clinical basis for the sex-based differences covered in this study.
[Related: New Rules Mean More Kidney Transplants for Minorities]

From American Heart Association News

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