Objective To explore the curative effect of comprehensive mitral valve apparatus reconstruc-tion(COMVAR)on rheumatoid mitral lesions. Methods 60 patients with rheumatic mitral valve disease weredivided into mitral valve repair group and mitral valve replacement group. The patients in the mitral valve repairgroup were treated with COMVAR,and those in the mitral valve replacement group with mitral valve replacement.The postoperative cardiac function classification,echocardiography,perioperative clinical indic...