Table 1.
Comparison between group 1 and group 2
| Group 1 (n = 93) | Group 2 (n = 83) | p Value | |
| Age (years) | 64 (11) | 61 (10) | NS |
| Structural heart disease | 49.5% | 41% | NS |
| Left ventricular ejection fraction (%) | 57 (12) | 60 (11) | NS |
| Left atrial size (mm) | 43 (7) | 40 (6) | NS |
| AFL duration since onset (months) | 1.6 (1.4) | 27 (29) | <0.0001 |
| Bidirectional block | 97.8% | 96.25% | NS |
| Duration of RFA application (minutes) | 13.7 (14) | 15.8 (19) | NS |
| Antiarrhythmic agents at end of follow up | 23/90 | 23/80 | NS |
| Mean follow up (months) | 22 (12) | 25 (15) | 0.1 |
| Overall atrial arrhythmias | 24.4% (22/90) | 27.5% (22/80) | NS |
| AFL recurrence | 6.7% (6/90) | 6.25% (5/80) | NS |
| Atrial tachycardia occurrence | 4.4% (4/90) | 3.75% (3/80) | NS |
| Atrial fibrillation occurrence | 13.3% (12/90) | 17.5% (14/80) | 0.9 |
| Complication | 0 | 1 | NA |
AFL, atrial flutter; NA, not applicable; NS, not significant; RFA, radiofrequency catheter ablation.