射频消融术治疗特发性室性心动过速的临床分析

总结射频消融术治疗特发性室性心动过速（简称室速）２７例。左室特发性室速１７例均消融成功，其中１６例采用标测Ｖ波前最早Ｐ电位（浦肯野纤维电位）的方法；１例采用起搏标测的方法，成功靶点处均在左室间隔部。１例复发，再次消融成功。对１０例右室特发性室速采用起搏标测和激动标测的方法，其中８例消融成功，成功靶点７例在右室流出道、１例在流入道部位。成功８例中２例复发或再发，１例复发后电生理检查不能诱发室速，无法消融；１例再发左室室速，再次消融成功。２７例中１例出现静脉炎并发症。以上结果表明射频消融术是治疗特发性室速的安全有效方法。

Radiofrequency Ablation of Idiopathic Ventricular Tachycardia

Twenty seven cases including 17 cases of left idiopathic ventricular tachycardia (IVT) and 10 cases of right IVT were ablated by using radiofrequency energy.In the 17 left IVTs,16 cases were mapped by the earliest P potential and 1 was mapped by pace mapping.17 cases were successfully ablated and the successful target sites were all at the left ventricular septal,1 of left IVTs was recurrent and had the second successful ablation.In the 10 right IVTs,8 cases were successfully ablated which were mapped by pace mapping and activation mapping,7 successful target sites were at the outflow tract and 1 at inflow tract.2 cases were recurrent,in which 1 could not be induced VT in the second electrophysiology study and the other had the second sucessful ablation and the target site was at the left ventricle.This study shows that radiofrequency ablation is a safe and effective therapy for IVT.