提要经皮球囊二尖瓣成形术（ＰＢＭＶ）是治疗风湿性心脏病（风心病）二尖瓣狭窄（ＭＳ）较为有效的非开胸手术方法。术中置入电极导管，房间隔穿刺及球囊充盈阻断二尖瓣瓣口时常出现多种心律失常。部分心律失常影响手术操作，严重的危及生命，需引起重视。本文着重讨论术中出现的心律失常及其处理。 Percutaneous balloon mitral valvuloplasty (PBMV) is a more effective non-thoracotomy method for rheumatic heart disease (rheumatic heart disease) mitral stenosis (MS). Intraoperative placement of lead, atrial septal puncture and balloon filling often block the mitral valve a variety of cardiac arrhythmia. Some arrhythmias affect surgical procedures, serious life-threatening, need attention. This article focuses on arrhythmias and their management.