二尖瓣脱垂(Mitral Valve ProlapseiMVP)系指在超声心动图,心血管造影或病理检查时,可见二尖瓣叶予心脏收缩期向左房突出。早在1887年就有人描述过心脏收缩中期喀喇音,当时推测其来源于心外,而心脏收缩晚期杂音则被认为是良性的。1961年Reid 提出收缩中期喀喇音与心脏收缩晚期杂音均起源于二尖瓣,以后的研究证实这些体征与MVP 有关。MVP 的成年男性发生率为0.5%,成年女性为6%,男性远低于女性。最近报道在美国东部地区经超声心动图检查的4967人中,MVP 的人群发生率为 Mitral Valve ProlapseiMVP refers to the echocardiographic, cardiovascular angiography or pathological examination, the mitral leaflets can be seen to systolic left atrial protrusion. As early as 1887, some people described the systolic midkine, which was presumed to originate extracardiacly, whereas late systolic murmurs were considered as benign. Reid proposed in 1961 contracting mid-tone and late systolic murmur murmur originated in the mitral valve, and later studies confirmed that these signs and MVP. The incidence of adult male MVP 0.5%, 6% of adult women, men are far lower than women. Recently reported in the eastern United States by echocardiography 4967 people, the incidence of MVP population was