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有研究提示二尖瓣环钙化(MAC)与脑卒中有关。但是否为卒中的独立危险因素尚不肯定。本文对一组老年人群作了研究。方法弗雷明汉(Framingham)研究包括1948年弗雷明汉地区的5209位居民,年龄30～62岁,每二年进行一次前瞻性流行病学研究。本研究是在1979年和1981年间进行的第16次调查。对2291例存活者作了M型超声心动图,以确定二尖瓣环钙化的情况。其后随访8年,检出脑卒中患者并进行多变量
Some studies suggest that mitral annular calcification (MAC) and stroke. But whether the independent risk factors for stroke is yet to be confirmed. This article studies a group of older people. Methods The Framingham study included 5,209 residents in the Framingham area of 1948 aged 30-62 years with a prospective epidemiological study every other year. This study is the 16th survey conducted between 1979 and 1981. M type echocardiography was performed on 2291 survivors to determine mitral annular calcification. After a follow-up of 8 years, stroke patients were detected and multivariate