Table 1

Clinical and Echocardiographic Characteristics

Clinical characteristics
 Age (yrs), mean ± SD56.3 ± 9
 Gender (male/female)35 (78%)/10 (22%)
 Paroxysmal/persistent atrial fibrillation38 (84%)/7 (16%)
 First/second/third/fourth procedure32 (72%)/6 (13%)/6 (13%)/1 (2%)
 Previous typical flutter ablation13 (29%)
 Left ventricular dysfunction10 (21%)
 Coronary artery disease9 (20%)
 Hypertension17 (38%)
 Diabetes3 (7%)
 Smoking habit4 (9%)
Echocardiographic characteristics
 Left ventricular ejection fraction, mean ± SD58.6 ± 8%
 Left atrium enlargement (>4 cm)28 (67%)
 Left atrium diameter (cm), mean ± SD4.4 ± 0.8