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Table 1 Patient baseline characteristics

From: Impact of ablation duration on rhythm outcome after concomitant maze procedure using cryoablation in patients with persistent atrial fibrillation

  Control Long duration P-value
(n = 140) (n = 116)
Age, y 54 ± 12 55 ± 13 0.356
Female sex, n (%) 78 (56%) 74 (64%) 0.190
Mean AF duration, months 47 ± 58 37 ± 43 0.242
AF duration ≥ 10 years, n (%) 16 (11%) 11 (10%) 0.614
NYHA class III-V, n (%) 88 (63%) 68 (59%) 0.335
History of stroke, n (%) 20 (14%) 23 (20%) 0.238
Diabetes, n (%) 9 (6%) 16 (14%) 0.048
Coronary artery disease, n (%) 8 (6%) 12 (10%) 0.169
Hypertension, n (%) 29 (21%) 26 (22%) 0.742
Redo operation, n (%) 8 (6%) 2 (2%) 0.118
Echocardiographic data    
 Left atrial diameter, mm 56 ± 8 58 ± 9 0.090
 LVEF, % 56 ± 9 59 ± 9 0.051
 TR grade, moderate to severe 17 (12%) 13 (11%) 0.971
  1. NYHA New York Heart Association functional class, AF atrial fibrillation, LVEF left ventricular ejection fraction, TR tricuspid regurgitation