本文对存在隐匿性旁道的4例患者,通过心室起搏诱发心动过速,在心动过速中确定旁路的位置并用导管射频消蚀旁路。 方法 4例患者中,2例患者旁道位于左侧房室沟、2例位于右侧房室沟的右侧。将4根4极导管经皮穿刺分别送至冠脉窦、右房、希氏束和右室心尖部。诱发AVRT时,在左、右房室沟附近不同的部位记录心电图,确定心房最早激动点的位置。诱发AVRT In this paper, 4 patients with occult paracancerous ventricular pacing induced tachycardia, tachycardia to determine the location of the bypass and radio frequency catheter ablation bypass. Methods Among the 4 patients, 2 patients were located in the left atrioventricular groove and 2 in the right right atrioventricular groove. Four 4-lead percutaneous catheter were sent to the coronary sinus, right atrium, His bundle and right ventricular apex. Evoked AVRT, in the left and right atrioventricular groove near the different parts of the record ECG to determine the location of the earliest atrial activation point. Induced AVRT