二尖瓣脱垂(以下简称MVP)是由于在心室收缩时二尖瓣凸入左房引起的一种临床综合征。近年来,国外已认识到它有较高的患病率,是最常见的心脏瓣膜病变之一,少数患者可发生多种严重并发症,甚至猝死。因此,正日益引起重视。 Mitral valve prolapse (hereinafter referred to as MVP) is a clinical syndrome caused by the mitral valve protruding into the left atrium when the ventricle contracts. In recent years, foreign countries have realized that it has a higher prevalence, is one of the most common heart valve disease, a few patients may occur a variety of serious complications, and even sudden death. Therefore, it is increasingly attracting attention.