CAJ | 학술논문

目的探讨特发性室性期前收缩（PVCs）的心电图特点，射频导管消融（下称消融）的疗效及安全性。方法351例特发性PVCs患者接受消融治疗，采用普通温控消融导管以起搏标测结合激动顺序标测下消融。以PVCs消失且静脉滴注异丙肾上腺素不能诱发为消融终点；术后1个月、6个月、1年和2年行24h动态心电图检查。结果291例起源于右心室（女性67.8%），60例起源于左心室（男性60.0%），其中以右心室流出道起源最多，其次为邻近三尖瓣环、主动脉窦和左心室室间隔起源。左、右心室起源的PVCs即刻成功率分别为80.0％和93.5％；随访2年，失访31例，复发13例。结论消融治疗PVCs是安全有效的,心脏不同部位PVCs的心电图特征及消融成功率有差异。
목적탐토특발성실성기전수축（PVCs）적심전도특점，사빈도관소융（하칭소융）적료효급안전성。방법351례특발성PVCs환자접수소융치료，채용보통온공소융도관이기박표측결합격동순서표측하소융。이PVCs소실차정맥적주이병신상선소불능유발위소융종점；술후1개월、6개월、1년화2년행24h동태심전도검사。결과291례기원우우심실（녀성67.8%），60례기원우좌심실（남성60.0%），기중이우심실류출도기원최다，기차위린근삼첨판배、주동맥두화좌심실실간격기원。좌、우심실기원적PVCs즉각성공솔분별위80.0％화93.5％；수방2년，실방31례，복발13례。결론소융치료PVCs시안전유효적,심장불동부위PVCs적심전도특정급소융성공솔유차이。
Objective To explore ECG characteristics of idiopathic premature ventricular contractions (PVCs)and the efficacy and safety of radiofrequency catheter ablation (RFCA). Methods 351 patients with symptomatic PVCs under-went RFCA. Ablation was performed by a catheter with temperature control guided by pace mapping and activation se-quence mapping. The end point of the procedure was that PVCs disappeared and could not been induced by intravenous isoproterenol. 24- hour Holter monitor was performed at 1 month, 6 month, 1 year and 2 year, respectively, after operation. Results 291 cases(67.8%female)had PVCs from right ventricle and 60 cases from left ventricle(60.0%male). The ma-jority of PVCs originated from right ventricular outflow tract, the rest from tricuspid annulus, aortic sinus and left ventricular septum. The success rate of ablation of PVCs from left and right ventricle were 80.0% and 93.5%,respectively. 13 cases had PVCs recurred in 2 years and 31 cases were lost to fol ow- up. Conclusion RFCA of PVCs is safe and effective. The ECG features and ablation success rate vary with origins of PVCs.