导管射频消融术治疗右侧房室旁道体会

目的 :总结射频消融右侧旁道治疗房室折返性心动过速的效果和经验。方法 :导管射频消融右侧旁道 42例 ,根据心内电生理检查 ,确定右侧房室折返性心动过速 ,采取左前斜位 30°透视下 ,细标消融导管沿三尖瓣环寻找靶点 ,即最短AV和VA间期且A/V比例≤ 1/ 4或AV或VA波融合处即可消融。结果 :除 1例右侧游离壁显性旁道未阻断、逆传阻断外 ,其余 41例旁道均被消融阻断 ,成功率 97 6 %。随访期 2 2± 3 6 ( 1～ 6 4)个月 ,未发现术后并发症。复发 7例 ,4例再次消融成功 ,复发率 2 2 8%。结论 :RFCA治疗右侧房室折返性心动过速安全、有效。

Clinical experience of right- sided accessory atrioventricular pathway treatment by radiofrequency current catheter ablation

Objective\ To summary the efficacy and experience of radiofrequency catheter ablation (FRCA)for right sided accessory atrioventricular pathway.Methods\ RFCA was made in 42 patients with right-sided accessory atrioventricular pathway.Right sided AVRT were identified by EPS. RFCA was performed under LAO 30° at the shortest A-V and V-A interval or completed fusion of AV ar VA around tricuspid ring.Results\ The successful rate was 97 6%(41/42),the serious complications were not found during the follow up of 22±3.6 months,7 cases had reccurrence after 3 months,with the recurrence rate of 22 8%.Conculsions\ The RFCA could be a safe and effective method for the therepy of right sided accessory atrioventricular pathway.