摘要
目的探讨预激旁路射频消融术后患者心动过速复发的原因。方法对530例房室折返性心动过速患者射频消融术后进行随访(7.6±3.2)年,回顾性分析其电生理和临床资料。结果530例患者中22例心动过速复发,总复发率4.1%。前150例的复发率为8.0%,此后的复发率为2.6%(P<0.05);复发可晚于术后2年。复发与旁路部位和是否显性无关,与旁路逆传时靶点室房波的融合程度、放电显效时间和是否为多旁路有关(P<0.05)。另有患者心动过速复发,并不是由于旁路传导功能的恢复,而是由于合并房室结折返性心动过速。结论靶点标测欠精确以及多旁路是导致房室折返性心动过速患者射频消融术后复发的主要原因。
Objective To investigate the factors for tachycardia recurrence after radiofrequency catheter ablation（RFCA） of accessory pathway（AP）.Methods Five hundred and thirty patients with atrioventricular reentrant tachycardia after RFCA were followed up for 7.6±3.2 years.Their electrophysiological data were retrospectively analyzed.Results Tachycardia recurred in 22 of the 530 patients with a total recurrent rate of 4.1%.The recurrent rate was 8.0% in the first 150 patients and 2.6% in the remaining 380 patients（P0.05）.Tachycardia recurred in some patients 2 years after RFCA.The recurrence of tachycardia was not related with the location and antegrade conduction of AP,but related with the fusion extent of target ventricular and atrial wave,the time to block of AP conduction from the onset of RF current application,and multiple APs.Tachycardia recurred in some patients due to atrioventricular node reentrant tachycardia rather than the recovery of AP conduction.Conclusion Inaccuracy of ablation target and the presence of multiple APs may lead to recurrence of tachycardia after RFCA of AP.
出处
《军医进修学院学报》
CAS
2011年第2期131-132,152,共3页
Academic Journal of Pla Postgraduate Medical School
关键词
导管消融术
预激综合征
复发
Catheter Ablation
Pre-Excitation Syndrome
Recurrence
