Risk factors long-term recurren ce after cath eter ablation and intracardiac cardioversoin in pa tients with the nonp aroxysma l atrial fibrillta oi n
10.3969/j.issn.1004-8812.2016.06.001
- VernacularTitle:导管消融术联合心腔内电复律治疗非阵发性心房颤动的远期复发因素研究
- Publication Type:Journal Article
- Keywords:
Nonparoxysmal atrial fibrillation;
Catheter ablation;
Intracardiac cardioversion;
Long-term recurrence
- From:
Chinese Journal of Interventional Cardiology
2016;24(6):301-304
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the risk factors of long-term recurrence after catheter ablation and intracardiac cardioversion in patients with the nonparoxysmal atrial fibrillation .Methods From January 2009 to December 2014 , 62 selected patients , with nonpaxysmal atrial fibrillation who presented refractory atrial fibrillation after catheter ablation and required intracardiac cardioversion to terminate the atrial fibrillation during procedure were included in the study .During the follow-up period for 12-48 months, 36 patients maintained sinus rhythm , and the other 26 patients had atrial fibrillation recurrence after catheter ablation procedure .Results Sinus rhythm was successfully restored immediately after the procedure in all patients.Among patients with long-term recurrence ( n =26 ) during follow up , the duration of atrial fibrillation before the procedure was significantly longer than that of patients without recurrence [60 (0.25, 360) vs.24 (0.25, 120)months,P<0.05], and the left atrial volume index of patients without recurrence was lower than that of patients with recurrence (32.21 ±12.76 vs.40.70 ±15.81 ml/m2,P<0.05).The left ventricular mass index of patients without recurrence was lower than that of patients with recurrence (132.97 ±27.33 vs.150.16 ±34.48 g/m2,P<0.05).After multivariate regression analysis, the duration of atrial fibrillation before procedure was found to be an independent risk factor for recurrence ( OR 1.017 , 95%CI 1.003 -1.032 , P =0.017 ) . Conclusions Sinus rhythm can be successfully restored by intracardiac cardioversion following catheter ablation in patients with nonparoxysmal atrial fibrillation . Duration of atrial fibrillation before procedure was found to be a risk factor for long term recurrence .
