Estrogen Therapy Does Not Protect Postmenopausal Women from Heart Disease

	Tweet

Estrogen therapy does not appear to reduce the risk of heart attack or coronary death in healthy postmenopausal women, although some data suggest a lower coronary heart disease risk in women aged 50 to 59 years, according to a new article in the February 13 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.

The Women’s Health Initiative (WHI) included two large clinical trials that evaluated whether hormone therapy with estrogen reduces the risk of coronary heart disease in postmenopausal women, according to background information in the article. In the part of the study designed to test estrogen therapy alone, 10,739 women aged 50 to 79 years who had undergone hysterectomy were assigned to take either conjugated equine estrogens-a mix of several estrogens-or a placebo. Though researchers had planned to study the women for 8.5 years, the estrogen-only trial was stopped in March 2004 after only 6.8 years because the hormone treatment appeared to increase the risk of stroke.

Judith Hsia, M.D., of George Washington University, Washington, D.C., and colleagues analyzed data from the estrogen-only portion of the WHI study.

During the course of the trial, the women taking hormones experienced 201 coronary events, which included heart attacks and coronary deaths, while those taking placebo had 217 events. Overall, the risk was similar for women who took hormones compared with those who did not, though there was a suggestion of lower risk in women age 50 to 59 years.

Among these women (a total of 1,396) who were aged 50 to 59 years at the start of the study, there was no significant reduction in myocardial infarction (heart attack) or coronary death among those taking estrogen. However, coronary revascularization (reestablishment of blood supply to the heart) was less frequent among women taking estrogen, as were several combined endpoints, such as myocardial infarction, coronary death and revascularization. “This trial may have been unable to demonstrate a significant difference in the risk of myocardial infarction or coronary death by age group because of the low event rate in young women,” the authors report.

http://www.jamamedia.org

RELATED STORIES:
Scientists turn skin cells into beating heart muscle   Too many people get angioplasties, study suggests   New Blood Thinner May Lower Chances of Clots in High-Risk Heart Patients: FDA   Heart Damage After Chemo Linked to Stress in Cardiac Cells   What’s good or bad for the heart, may be the same for the brain   Warfarin in Heart Failure   Increased Sudden Cardiac Death Rate Among HIV Patients   Air pollution level changes in Beijing linked with biomarkers of cardiovascular disease   Lack of basic evidence hampering prevention of sudden heart attacks in sport   Blacks Less Likely to Get Help on Scene After Cardiac Arrest: Study   Heart attack patients taken to PCI hospitals first treated faster   Cameron Health’s under-skin ICD safe, effective

Comments

[ + Post Your Own ]

Now you're in the public comment zone. What follows is not Armenian Medical Network's stuff; it comes from other people and we don't vouch for it. A reminder: By using this Web site you agree to accept our Terms of Service. Click here to read the Rules of Engagement.

There are no comments for this entry yet. [ + Comment here + ]