报道房室旁道射频消融发生房室结损伤患者４例，其中左侧、中间隔右侧、左游离壁＋右前间壁及右前间隔各１例。２例房室结损伤为一过性，１例安置起搏器，１例双旁道保留１条“旁观者”旁道。术后随访３～２０个月均无室上性心动过速发作。对房室结损伤的Ｘ线影象原因、心电图特征及右前间隔和右中间隔旁道消融术中希氏束监测的重要性提出了讨论。 Report of atrioventricular bypass radiofrequency ablation occurred in 4 patients with atrioventricular node damage, including the left, right middle septum, left anterior wall + right anterior wall and right anterior septum in 1 case. 2 cases of atrioventricular node injury was a transient, 1 case of pacemaker, 1 case of double bypass reserved 1 “bystander” bypass. No follow-up of 3 to 20 months after supraventricular tachycardia attack. The causes of X-ray imaging of atrioventricular node injuries, the electrocardiographic features, and the importance of His bundle monitoring in right anterior septal and right middle sectoral bypass ablation were discussed.