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Table 2 Characteristics of patients with and without atrial fibrillation recurrence after ablation

From: Predictive value of pre-procedural autoantibodies against M2-muscarinic acetylcholine receptor for recurrence of atrial fibrillation one year after radiofrequency catheter ablation

Variables No recurrence (n = 51) AF recurrence (n = 25) p value
Age (years) 65 ± 9 66 ± 8 0.728
Gender (male) 26 (51.0%) 13 (52.0%) 0.933
Body mass index (kg/m2) 25.74 ± 3.46 26.13 ± 3.65 0.710
Smoking (%) 21 (41.2%) 7 (28.0%) 0.263
Persistent atrial fibrillation (%) 14 (27.5%) 19 (76.0%) < 0.001
Duration of atrial fibrillation (months) 24 ± 5 60 ± 15 0.090
Comorbidity    
 Hypertension (%) 26 (51.0%) 11 (44.0%) 0.567
 Diabetes mellitus (%) 13 (25.5%) 9 (36.0%) 0.343
 Coronary artery disease (%) 5 (9.8%) 4 (16.0%) 0.432
Medications    
 Statins 22 (43.1%) 12 (48.0%) 0.689
 ACEI/ARB 40 (78.4%) 18 (72.0%) 0.536
Renal function    
 Blood urea nitrogen (mmol/L) 5.67 ± 1.60 5.43 ± 1.87 0.630
 Creatinine (μmol/L) 77.58 ± 16.81 79.75 ± 8.85 0.526
 Creatinine clearance (mL/min) 83.12 ± 28.23 79.06 ± 22.86 0.616
Echocardiographic data    
 Left atrial diameter (mm) 39.0 ± 3.5 44.9 ± 2.1 < 0.001
 Left ventricular end-diastolic diameter (mm) 46.3 ± 3.9 46.9 ± 4.2 0.593
 Left ventricular end-systolic diameter (mm) 28.0 ± 3.1 27.5 ± 2.1 0.411
 Left ventricular ejection fraction (%) 69.0 ± 5.8 70.0 ± 3.5 0.354
NT-proBNP (pg/ml) 204.50 ± 56.35 347.80 ± 35.80 < 0.001
Ablation protocol (persistent AF) n=14 n=19  
 CAPV+additional linear ablation 8 (57.1%) 9 (47.4%) 0.728
 CAPV+LA "roof" line 8 (57.1%) 9 (47.4%) 0.728
 CAPV+LA "mitral isthmus" line 8 (57.1%) 9 (47.4%) 0.728
Ablation protocol (paroxysmal AF) n=37 n=6  
 CAPV+additional linear ablation 7 (18.9%) 2 (33.3%) 0.589
 CAPV+LA "roof" line 7 (18.9%) 2 (33.3%) 0.589
 CAPV+LA "mitral isthmus" line 5 (13.5%) 0 -
  1. Data were expressed as numbers (%), Mean ± SD.
  2. Abbreviations: ACEI = angiotensin-converting enzyme inhibitor, ARB = angiotensin II receptor blocker, NT-proBNP = N-terminal pro-brain natriuretic peptide,CAPV=circumferential ablation of pulmonary vein, LA=left atrium.