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。

youdao

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。

youdao