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目的 :观察我科自开展射频消融以来对引起房室结内折返性心动过速 ( AVNRT)的慢径路射频消融的治疗效果。方法 :分析自 2 0 0 1 -0 5～ 2 0 0 4-0 3在我科住院行射频消融慢径路的 2 4例 AVNRT的临床电生理特征、成功率、复发率、并发症等。结果 :2 4例 AVNRT中 ,2 3例慢 -快型 AVNRT,1例快 -慢型 AVNRT,他们的电生理特性不同 ,但射频消融成功率达 96%。有 1例损伤房室结 ,为 2∶ 1房室传导阻滞 ,但很快恢复为 1∶ 1正常房室传导。到目前为止无 1例复发 AVNRT。结论 :经导管用射频消融 AVNRT病人的慢径路 ,成功率高 ,并发症少 ,复发率低。是目前根治 AVNRT的首选方法。
Objective: To observe the therapeutic effect of slow pathway radiofrequency ablation of atrioventricular nodal reentrant tachycardia (AVNRT) in our department since the initiation of radiofrequency ablation. Methods: The clinical electrophysiological characteristics, success rate, recurrence rate and complications of 24 AVNRT patients who underwent radiofrequency catheter ablation in our department from 2000 to 2005 were analyzed. Results: Twenty-three AVNRTs had slow-fast AVNRT and 1 fast-slow AVNRT. Their electrophysiological characteristics were different, but the success rate of radiofrequency ablation was 96%. There was 1 case of atrioventricular node injury, 2: 1 atrioventricular block, but soon returned to 1: 1 normal AV conduction. No one has recurred AVNRT so far. Conclusion: Transcatheter radiofrequency ablation of slow pathway in patients with AVNRT, high success rate, fewer complications, low recurrence rate. Is currently the preferred method of cure AVNRT.