All patients underwent mitral annuloplasty using prosthetic mitral ring. 10 patients underwent mitral annuloplasty in use of intraoperative transeophaged echocardiography.

• 根据二尖瓣病理改变对瓣叶和瓣下结构做针对性瓣膜成形术后，均植入人工瓣环。