title: Predictors of late recurrence of atrial fibrillation after catheter ablation.
abstract: BACKGROUND
  To predict the recurrence of atrial fibrillation is important for selecting patients who will be undergoing catheter ablation, several studies respectively evaluated the risk factor of the recurrence of atrial fibrillation post-ablation.
  
  
  OBJECTIVE
  To investigate the factors predicting the recurrence of atrial fibrillation (AF) after catheter ablation.
  
  
  METHODS
  186 patients (55.12 ± 12.06 years, 123 male) including 161 paroxysmal AF and 25 non-paroxysmal AF who underwent catheter ablation were studied. Clinical datum before and during ablation were recorded, and systematic follow-up was conducted after ablation. Univariate and multivariate analyses were carried out to determine the factors predicting late recurrence of AF (LRAF) which means AF recurrence after 3 months.
  
  
  RESULTS
  There were 47(25.27%) patients who experienced LRAF. Multivariate Logistic regression analysis was carried out to the parameters that P<0.10 in the univariate analysis, which includes overweight/obesity, metabolic syndrome (MetS), AF categories, duration of AF history, left atrial diameter (LAD), diabetes mellitus, ablation strategies, procedural failure and early recurrence of AF after ablation (ERAF). Ultimately, the results demonstrated that overweight/obesity (OR=4.71, 95% CI 1.71-12.98, P=0.003), MetS (OR=4.41, 95% CI 1.56-12.46, P=0.005), procedural failure (OR=58.34, 95% CI 6.83-498.34, P<0.001), and ERAF (OR=3.18, 95% CI 1.07-9.44, P=0.037) were independent predictors of AF recurrence after ablation.
  
  
  CONCLUSIONS
  Overweight/obesity, metabolic syndrome, procedural failure and ERAF are independent predictors of late recurrence of atrial fibrillation in this group of patients.
authors: Department of Cardiology, the Second Affiliated Hospital of Chongqing Medical University, the Chongqing Cardiac Arrhythmias Service Center, Chongqing 400010, China.
authors: Liyun
authors: L
authors: Cai
authors: Yuehui
authors: Y
authors: Yin
authors: Zhiyu
authors: Z
authors: Ling
authors: Li
authors: L
authors: Su
authors: Zengzhang
authors: Z
authors: Liu
authors: Jinjin
authors: J
authors: Wu
authors: Huaan
authors: H
authors: Du
authors: Xianbin
authors: X
authors: Lan
authors: Jinqi
authors: J
authors: Fan
authors: Weijie
authors: W
authors: Chen
authors: Yanping
authors: Y
authors: Xu
authors: Pei
authors: P
authors: Zhou
authors: Jifang
authors: J
authors: Zhu
authors: Bernhard
authors: B
authors: Zrenner
mesh_terms: D001281:Atrial Fibrillation / Q000150:complications / Q000601:surgery*; D017115:Catheter Ablation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012008:Recurrence; D012307:Risk Factors; D013997:Time Factors