Although mitral regurgitation was not significantly different between group a and group b, severe mitral regurgitation was found only in group a patients.
存在二尖瓣反流的患者两组间无明显差别，但重度二尖瓣反流只存在于a组患者中。
Conclusion tricuspid annular dilatation, right heart impairment and severe pulmonary hypertension are responsible for the development of late tricuspid regurgitation after mitral valve replacement.
结论二尖瓣置换术后远期三尖瓣功能性关闭不全与三尖瓣环扩大、右心功能损害和严重肺动脉高压有关，三尖瓣环扩大是其重要的原因。
Mitral and other valvular regurgitation were significantly more severe in group ISCM than group OMI.
IS CM组的二尖瓣返流程度明显重于omi组，其他瓣膜的返流情况也是IS CM组严重。
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