Table 1.
Baseline Patient Characteristics
| Characteristics | Data |
|---|---|
| Age, mean (SD), y | 57 (11) |
| Male sex | 32 (64) |
| Paroxysmal AF | 40 (80) |
| Canadian Cardiovascular Society Severity of AF score (SD) | 3 (1) |
| No. of failed antiarrhythmics administered before ablation, mean (SD) | 1.2 (0.7) |
| Duration of AF symptoms before ablation, median (range), y | 6.2 (1–32) |
| CHADS index, mean (SD) | 1.4 (0.3) |
| Hypertension | 15 (30) |
| Diabetes mellitus | 5 (10) |
| Sleep apnea | 5 (10) |
| Prior stroke/TIA | 4 (8) |
| Coronary artery disease | 3 (6) |
| Heart failure | 3 (6) |
| Valvular heart disease | 2 (4) |
| Ejection fraction, mean (SD) | 54 (10) |
| Left atrial diameter, mean (SD), mm | 41 (6) |
AF indicates atrial fibrillation; SD, standard deviation; TIA, transient ischemic attack.