Results The group had no case dead, 2 cases need re-mitral valve replacement.
结果全组无手术死亡病例，2例行二尖瓣置换术。
Objective: To explore nursing for the patients with mitral valve replacement by chordal preservation.
前言： 目的：探讨保留瓣下结构二尖瓣置换术的护理配合。
Objective To evaluate the hemodynamic effects of milrinone in patients after mitral valve replacement.
目的评价国产米力农对二尖瓣置换术后低心排患者血液动力学改变的临床效果。
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