Table 1

Baseline and Procedural Characteristics

Conventional PVI
(n = 35)
Pace-Guided Ablation
(n = 39)
p Value
Age, yrs62.0 ± 10.363.1 ± 10.90.424
Male24 (68.6)28 (71.8)0.762
CHA2DS2-VASc score1.4 ± 1.01.5 ± 0.70.022
LV ejection, %63.2 ± 4.163.1 ± 7.00.687
Left atrial diameter, mm43.5 ± 5.839.6 ± 7.90.766
Sleep apnea0 (0)3 (7.7)0.242
Chronic obstructive lung disease3 (8.6)0 (0)0.101
Diabetes mellitus3 (8.6)0 (0)0.062
Hypertension12 (34.3)9 (0)0.313
History of stroke1 (2.3)0 (0)0.473
Duration of AF, min17.21 ± 3.6117.24 ± 4.970.479
Procedure time, min109.7 ± 28.8157.6 ± 39.4<0.001
Fluoroscopy time, min22.8 ± 9.523.9 ± 7.00.207
Total energy, J61,780 ± 27,318.859,501.9 ± 23,138.60.801

Values are mean ± SD or n (%).

AF = atrial fibrillation; CHA2DS2-VASc score = combined stroke risk score: congestive heart failure, hypertension, age > 75 years, diabetes, prior stroke/transient ischemic attack, vascular disease; LV = left ventricle; PVI = pulmonary vein isolation.