1964年在1例心电图示有交替出现A型和B型的预激综合征患者中首次发现存在多条房室旁道以后,在预激综合征患者中存在多条房室旁道的报道日益增多,约为3.7～15％。作者旨在确定在具有显性或隐匿性房室旁道患者中多条旁道的发生率,并识别临床、心电图和电生理特征以预测其多条旁道的存在。方法:自1976年1月至1984年12月,共收集388例经电生理详细检查确定其房室旁道存在的患者。在电生理检查前用标准或动态心电图诊断心律失常,以房室旁道作为折返环路下行支的反复性心动过速称为预激性反复性心动过速,它包括以房室结作为逆行支的真正逆行性心动过速以及以第二旁道 1964 in a case of ECG showed alternating type A and B pre-excitation syndrome patients found for the first time in the presence of multiple accessory pathway, the presence of multiple accessory pathway preganglionic syndrome in patients with reports of increasingly widespread Increase, about 3.7 ~ 15%. The authors aimed to determine the incidence of multiple paracias in patients with dominant or occult paraventricular intima and to identify clinical, electrocardiographic and electrophysiological characteristics to predict the presence of multiple paratrices. Methods: From January 1976 to December 1984, a total of 388 patients with electrophysiological detailed examination to determine the presence of its accessory pathway were collected. Before the electrophysiological examination with standard or ambulatory electrocardiogram diagnosis of arrhythmia, atrioventricular anomalies as a retrograde loop descending branch of the repeated tachycardia known as the prerevalence of recurrent tachycardia, which includes the atrioventricular node as a retrograde True retrograde tachycardia as well as with the second bypass