儿童二尖瓣置换(MVR)手术尚待解决的问题很多,该文研究了儿童人工瓣的大小匹配问题。 方法 自1982年～2000年期间,施行MVR的53例儿童入选,共施行MVR 76例次,中位数年龄5岁(1天～18岁),中位数体重17kg(3～21kg),39例患者在MVR前曾接受过其他心脏手术,其中二尖瓣成形27例。诊断:心内膜垫缺损28％、二尖瓣发育不良14％、伞状二尖瓣 Children with mitral valve replacement (MVR) surgery remains to be solved. This article studies the size matching of children’s prosthetic valves. Methods From 1982 to 2000, 53 children undergoing MVR were enrolled. A total of 76 MVRs were performed, with a median age of 5 years (ranged from 1 day to 18 years) and a median weight of 17 kg (3 to 21 kg). 39 The patients underwent other cardiac procedures prior to MVR, with mitral valvuloplasty in 27 cases. Diagnosis: Endocardial pad defect 28%, 14% of mitral dysplasia, umbrella mitral valve