Summary characteristics of the patients and ablation procedure
| AF, atrial fibrillation; PVs, pulmonary veins. | |
| Number | 100 |
| Age (years) | 52 (range 23–73) |
| Sex (men:women) | 4:1 |
| AF duration (months) | 53 (range 6–180) |
| Drug failures | 3 (range 1–5) |
| AF category at ablation | |
| Paroxysmal | 36 |
| Persistent | 64 |
| Ablation procedure data | |
| Procedure duration (min) | 195 (range 130–310) |
| Radiographic screening (min) | 49 (1–106) |
| x Ray radiation dose (mSv) | 5999 (range 457–57230) |
| Need for cardioversion | 71 |
| Number of PVs ablated | |
| One | 11 |
| Two | 45 |
| Three | 36 |
| Four | 8 |