Younger women with coronary heart disease and mental stress are more susceptible to myocardial ischemia (reduced blood flow to the heart muscle, which can lead to a heart attack), compared to men and older patients, according to new research in Journal of the American Heart Association, the Open Access Journal of the American Heart Association/American Stroke Association.
Coronary heart disease is a leading cause of death in American men and women, but studies show that younger women have higher rates of complications and death after a heart attack compared to their male counterparts.
"Younger women tend to have quite a lot of stress in their lives. Many of them have full-time jobs and at the same time have numerous responsibilities at home; financial hardship, as well as depression and anxiety which are common in this group," said Viola Vaccarino, M.D., Ph.D., lead study author, professor and chair of the department of epidemiology at Emory University in Atlanta, Georgia. "Clinicians should ask about stress and emotional difficulties in these patients and recommend ways to help, such as finding time to relax and exercise."
They found stress-induced, reduced blood flow which happened more often in younger women compared to men and older women. This occurred in 33% of women age 50 years old or younger compared to 8%of men of similar ages. The difference between men and women decreased with age and disappeared in older patients. The frequency of reduced blood flow almost doubled in women compared to men for every 10-year decrease in age.
"Our findings suggest that women with heart disease in their 30s, 40s and early 50s are more vulnerable to the damaging effects of psychological stress on their heart," Vaccarino said.
Researchers said their study is limited by the relatively small number of younger women involved and that further studies are needed to confirm the clinical significance of mental stress-induced heart attacks in women.