Heart disease is still the number one killer of US women, and hormone therapy remains a top treatment for menopause symptoms. A new study connects these two facts to demonstrate little effect of hormone therapy on artery thickness as a precursor to heart disease. Study results are published online today in Menopause, the journal of The North American Menopause Society (NAMS).
According to the American Heart Association, heart disease is responsible for one in three deaths of US women each year. That means about one woman dies every minute. Statistics like these drive a continued interest in the medical field to study risk factors that may affect the incidence of heart disease. This includes the ongoing debate regarding the effect of hormone therapy on the progression of cardiovascular disease.
The well-known Kronos Early Estrogen Prevention Study (KEEPS) was designed to compare the effects of lower doses of either oral conjugated equine estrogens (CEE) or transdermal estradiol on the progression of atherosclerosis (hardening and thickening of the arteries), the most common cause of heart attacks and strokes. After 4 years of therapy, no differences in artery thickness were detected among the oral CEE-, transdermal estradiol-, and placebo-treated groups. In this new study, a subgroup of KEEPS participants were further evaluated for 3 years after the initial study.
The results of the follow-up study appear in the article “Changes in carotid artery intima-media thickness 3 years after cessation of menopausal hormone therapy: follow-up from the Kronos Early Estrogen Prevention Study.” Study results demonstrate that the cessation of hormone therapy at the lower doses did not accelerate changes in the thickness of the arteries.
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