A new research suggests that attaining menopause before the age of 40 is linked to several heart conditions in women. The study was presented at the American Heart Association's Scientific Sessions 2019 in Philadelphia.
In the largest, single study to-date of diverse heart disease risks relative to age at menopause, researchers used the UK Biobank to examine data on more than 144,000 postmenopausal women (average age 60), including about 4,900 women who experienced menopause "naturally" before age 40 and about 640 who entered menopause before age 40 after their ovaries were removed surgically.
During an average of seven years of follow-up, researchers found that women who had experienced premature menopause were significantly more likely to develop conventional heart disease risk factors, such as high blood pressure, high levels of "bad" cholesterol and Type 2 diabetes.
Even after accounting for conventional risk factors, women with premature menopause still had a significantly increased risk of coronary artery disease, heart failure, thickening and narrowing of the aortic valve, atrial fibrillation (an abnormal heart rhythm) and blood clots forming in the legs or lungs.
The heart disease risks were higher for women who experienced menopause due to surgery compared to natural menopause. Some of this risk difference may be explained by differences in cardiovascular disease risk factors.
Whether or not a woman took hormones for menopausal symptoms did not change the cardiovascular risks.
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Menopausal age prior to age 50 had a dose-dependent effect on cardiovascular disease risk, meaning risk continued to increase with younger menopausal ages and increased cardiovascular risks lasted for decades after menopause.
"Our study reinforces the importance of menopause history in informing a woman's risk of future heart disease," said Michael Honigberg, M.D., M.P.P., lead author of the study and a cardiology fellow at Massachusetts General Hospital and Harvard Medical School in Boston.
"Women should make sure their physician knows their menopause history, particularly if they experienced menopause before age 40. History of premature menopause should prompt physicians to refine the patient's estimated future risks for heart disease and to work toward lowering their heart disease risks," added Honigberg.
He said early evaluations could lead to intervention and medication recommendations.
"Whether or not medications are warranted, eating a heart-healthy diet and exercising regularly may be especially important for women with a history of premature menopause," Honigberg said.
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