导管射频消融治疗阵发性室上性心动过速

TREATMENT OF PAROXYSMAL SUPRAVENTRICULAR TACHYCARDIA WITH RADIOFREQUENCY CURRENT CATHETER ABLATION

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 study the method and effect of radiofrequency current catheter ablation on treating paroxysmal supraventricular tachycardia(PSVT). Method 43 patients with PSVT were treated with radiofrequency current catheter ablation among which 11 belonged to atrioventricular nodal double pathway type (AVNDP) and 32 atrioventricular accessory pathway type(AVAP, 23 accessory pathways located on the left side of the heart and 9 on the right). Result The slow pathways in all the 11 patients of AVNDP type were ablated successfully by using inferior approach(100%). 31 patients out of the 32 AVAP type were permanently abolished(96.6%). One AVAP failed to be ablated from the endocardium because the accessory pathway was under the visceral pericardium. The complication rate of the operation was 2.3%. There were no tachycardia recurred during the follow up period between 28 days and 3.5 years. Conclusion Radiofrequency current catheter ablation was an effective method to treat PSVT.