窦性心律下基质标测指导瘢痕性房性心动过速消融的临床研究

Clinical research for cicatrical atrial tachycardia catheter ablation guided by substrate mapping in sinus rhythm

在窦性心律下通过基质标测证实瘢痕性房性心动过速的患者40例。根据消融策略的不同,分为激动标测指导消融组和窦性心律下基质标测指导消融组,采用生存分析(Kaplan Meier)曲线比较两组房性心律失常发生率。研究组与对照组的手术即时成功率均为100%,术中X线曝光量差异无统计学意义(P=0. 923)。随访(19. 75±10. 59)个月,两组各5例患者发作房性心律失常[5 (23. 8%) vs 5(26. 32%)],差异无统计学意义(P=0. 855)。窦性心律下基质标测指导瘢痕性房速贯穿低电压区至电屏障区的消融策略,是治疗瘢痕性房速的安全、有效的方法。

All data of 40 cases of cicatrical atrial tachycardia confirmed by substrate mapping in sinus rhythm.Accroding to the diferrent ablation strategies,the cases were divided into the ablation by the active mapping and substrate mapping in sinus rhythm,and then diagnostic the incidence of atrial arrhythmia in two groups was compared by the survical analysis(Kaplan Meier)curve.The immediate success rate of both study group and observation group was 100%,and there was no significant difference in the X-ray fluoroscopy time(P=0.923).During a mean follow-up of(14±10)months,Atrial arrhythmia occurred in 5 patients in each group[5(23.8%)vs 5(26.32%)],there was no obvious difference(P=0.855).It is a safe and effective to treat scar-related atrial tachycardia by substrate mapping through the low voltage area to electrical barier region.