保留瓣下结构二尖瓣置换术临床研究

目的 :观察以关闭不全为主的二尖瓣病变保留瓣下结构与否的二尖瓣置换手术效果。方法 :收集 2 1例保留瓣下结构 (实验组 )和 2 0例不保留瓣下结构 (对照组 )二尖瓣关闭不全为主患者二尖瓣置换手术前及术后 6个月心脏彩色超声结果 ,并对左心功能主要指标进行对比分析。结果 :两组病例手术前后左心室大小、左室收缩末期容量指数、舒张末期容量指数均明显下降 ,实验组较对照组下降更为明显 ,且术后低心排综合征发生率及死亡率明显降低。结论 :保留瓣下结构二尖瓣置换术治疗关闭不全为主的二尖瓣病变 ,优于不保留瓣下结构者

Mitral valve replacement with a preserved subvalvular apparatus

Objective To compare the differences of mitral valve replacement between preservation and no preservation of subvalvular apparatuses for severe mitral regurgitations with mitral stenosis. Methods We collected and analyzed the data of cardic function obtained from the cardic colour echo six months before and after operation from 41 patients with severe mitral regurgitation and mitral stenosis, 21 of whom had mitral valve replacement with the preservation of a subvalvular apparatus (MVRP), and 20 of whom had mitral valve replacement without the preservation of a subvalvular apparatus (MVR). Results The internal diameter of the left ventricle, left ventricular end diastolic volume index (LVEDVI) and left ventricular end systolic volume index (LVESVI) were remarkably decreased in the group of MVRP as well as MVR, and the rate of the low cardic output syndrome and death obviously decreased. Conclusion MVRP is superior to MVR for severe mitral regurgitation with mitral stenosis.