本文分析了106例经皮二尖瓣球囊成形术。成功率为77.4％,有效率为19.8％,失败率为2.8％,并发症发生率为17.0％。本文还探讨了并发症和发生原因及予防。我们采用瓣口大小,跨瓣压差,舒张期杂音,心功能和并发症五方面作为评价疗效的标准。最后讨论了球囊导管通过大左房小瓣口的初步经验。 This article analyzes 106 cases of percutaneous balloon mitral valvuloplasty. The success rate was 77.4%, the effective rate was 19.8%, the failure rate was 2.8% and the complication rate was 17.0%. This article also discusses the complications and causes and prevention. We use the flap size, transvalvular pressure, diastolic murmur, cardiac function and complications as the evaluation criteria for efficacy. Finally, the initial experience of balloon catheter passing through the large left atrial valve is discussed.