Safety and Efficacy of Minimal- versus Zero-fluoroscopy Radiofrequency Catheter Ablation for Atrial Fibrillation: A Multicenter, Prospective Study

Figure 1:. Fluoroscopy times in the patients enrolled for AF ablation in the first year of the prospective registry (median: 0.1 minutes, interquartile range: 0.2 minutes, mean: 0.9 minutes) were higher than those for patients enrolled in the second year of the registry (median: 0.0 minutes, interquartile range: 0.0 minutes, mean: 0.4 minutes; p = 0.01).

Figure 2:. The total procedure times for patients enrolled for AF ablation in the first year of the prospective registry (3.19 ± 0.3 hours) were similar to those for patients enrolled in the second year of the registry (3.13 ± 0.04 hours; p = 0.6).

Figure 3:. The mean procedure times for the minimal- and zero-fluoroscopy cohorts were similar (192 ± 37 minutes versus 201 ± 29 minutes; p = 0.96).

Figure 4:. Kaplan–Meier survival curves showing freedom from atrial arrhythmias in A: all patients in the registry B: patients with paroxysmal AF, C: patients with persistent AF, and D: patients with no prior ablation stratified by zero- versus minimal-fluoroscopy use. There was no significant difference between zero- and minimal-fluoroscopy use among groups by log-rank test.