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①目的为了探讨不同病变部位阵发性室上性心动过速（ＰＳＶＴ）的射频消融治疗方法及治疗效果。②方法应用射频消融治疗４３例ＰＳＶＴ病人，其中房室结双径路１１例，房室旁道３２例（左侧旁道２３例，右侧旁道９例）。③结果１１例房室结双径路病人采用下位法消融均获成功；３２例房室旁道病人中，３１例消融成功（９６．９％），另１例因旁道位于心外膜经心内膜消融失败。手术并发症发生率２．３％．随访２８ｄ～３．５年无复发。④结论射频消融是治疗ＰＳＶＴ的有效方法。
Objective To investigate the radiofrequency ablation and treatment of paroxysmal supraventricular tachycardia (PSVT) in different lesion sites. Methods Forty-three PSVT patients were treated by radiofrequency catheter ablation. Among them, 11 cases had atrioventricular node dual pathway and 32 cases had atrioventricular bypass (23 cases in the left side and 9 cases in the right side). Results 11 cases of atrioventricular node dual-path patients were successfully treated by the lower-position ablation. Of the 32 patients with atrioventricular bypass, 31 cases were successfully ablated (96.9%) and the other was located in the epicardium Endometrial ablation failed. The incidence of surgical complications 2.3%. Follow-up 28d ~ 3.5 years without recurrence. ④ Conclusion RFA is an effective method of treatment of PSVT.