射频消融治疗右室流出道频发单形性室性早搏的体会

Radiofrequency catheter ablation of frequent ventricular ectopic beats originating in the right outflow tract.

目的 探讨射频消融治疗右室流出道频发室早的意义。方法 右室流出道频发单形性室性早搏病人2 8例。无心脏病史。ECG确定为右室流出道频发单形性室性早搏 (10 /min)。采用激动标测法 ,以自发单形性室性早搏V波最提前处为靶点消融。结果 即刻成功率 10 0 % (2 8/2 8)。术前与术后 2周 2 4h动态心电图监测 ,单形性室性早搏数 15 ,836～ 32 ,4 19/2 4h(术前 ) :0～ 1,2 36 /2 4h(术后 )。随诊 6～ 2 4个月 ,2 8例病人均已恢复正常生活 ,无并发症发生。结论 射频消融治疗右室流出道频发单形性室性早搏安全、有效。

Objective To study the significance of radiofrequency catheter ablation (RFCA) of frequent ventricular ectopic beats originating in the right outflow tract.Methods Twenty-eight patients without history of heart diseases were determined by ECG (>10 beats/min) to be with frequent monomorphic ventricular ectopic beats originating in the right outflow tract. Using activation-mapping for the earliest endocardial activation of spontaneous monomorphic ventricular ectopic beats, the site was ablated by RFCA.Results The immediate successful rate was 100% (28/28). Holter monitoring before and after ablation found monomorphic ventricular ectopic beats:15.836-32.419 beats/24 h vs 0-1.236 beats/24 h.Following-up of 6-24 months found all the 28 patients living in normal state.No complication occurred.Conclusion RFCA of frequent monomorphic ventricular ectopic beats originating in the right outflow tract is safe and effective.