本文旨在验证长期二尖瓣反流伴正常射血分数的病人,左室弹性回缩力的变化能否用于检测收缩功能的减退;以及这类病人在二尖瓣手术后的一定时间内,左室体积和射血分数的变化与收缩功能正常的病人有无不同。 方法 28例长期二尖瓣反流的病人,男性27例,女性1例,年龄36～72岁。按纽约 This paper aims to demonstrate that long-term mitral regurgitation with normal ejection fraction in patients with left ventricular elastic retraction force changes can be used to detect the decline of systolic function; and such patients within a certain period of time after mitral valve surgery , Left ventricular volume and ejection fraction change with normal contractile function in patients with or without any difference. Methods Twenty-eight patients with long-term mitral regurgitation, 27 males and 1 females, aged from 36 to 72 years. Press New York