按照目前超声心电图诊断标准,在一般人群甚至经挑选的正常人中,二尖瓣脱垂诊断率之高惊人,然而大多数人在心尖四腔观上瓣叶脱垂,而在近乎互相正交的胸骨旁长轴观上瓣叶并不脱垂.前已证明收缩期间二尖瓣瓣环并不位于同一平面上,足以导致在心尖四腔观上收缩期二尖瓣瓣叶明显地向上移位,然而瓣叶的实际位置并未超过瓣环的若干最高点。因此,提出局限于心尖四腔观的瓣叶向上移位是否具有任何病理意义或并发症的问题是合乎情理的。本文旨在证明以 According to the current diagnostic criteria for echocardiography, the diagnosis rate of mitral valve prolapse is surprisingly high in the general population and even in selected normal subjects. However, most people have prolapsed leaflets in apical four-chamber view, and are almost orthogonal to each other Of the parasternal long axis view of the valve leaflets do not prolapse was demonstrated before the mitral valve annulus during systole is not located in the same plane, sufficient to cause the apical four chamber view systolic mitral valve leaflets moved up significantly However, the actual position of the leaflets did not exceed some of the highest point of the annulus. Therefore, it is reasonable to ask whether the upward displacement of the leaflets confined to the apical four-chamber view possesses any pathological significance or complication. This article aims to prove that