射频消融治疗右室流出道频发单形性室性早搏的体会

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。

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

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.