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It may have boosted the early risk of stroke and aggravated nonfatal strokes.
FORT LAUDERDALE, FLA. -- Estrogen replacement therapy did not cut the incidence of strokes in postmenopausal women with a history of cerebrovascular disease.
Moreover, results from the first prospective, controlled trial to study the impact of estrogen on secondary prevention of cerebrovascular disease suggested that estrogen may have boosted the early risk of stroke and worsened the severity of nonfatal strokes, Dr. Lawrence M. Brass reported at the 26th International Stroke Conference.
These findings were strikingly similar to the results from the Heart and Estrogen-Progestin Replacement Study (HERS), reported last year, which showed that estrogen did not cut the incidence of cardiovascular events in postmenopausal women with established atherosclerotic disease.
The current study was undertaken to test the hypothesis that estrogen replacement therapy might be able to improve lipid levels and the function of vascular endothelium. The amount of estradiol used in the trial brought women's serum levels of estrogen back up to premenopausal levels but was not high enough to trigger clot formation, he said during the conference, which was sponsored by the American Stroke Association.
The study randomized 652 postmenopausal women, ...
Source: HighBeam Research, Estrogen Did Not Reduce Strokes in Women at Risk.