Why the study?
The comparative rates of very late recurrence beyond one year after pulmonary vein isolation using second generation cryoballoon versus radiofrequency ablation were not well established.
Does second generation cryoballoon ablation reduce very late recurrence of atrial fibrillation compared to radiofrequency ablation in patients with paroxysmal atrial fibrillation?
Cohort (n=139)
Does second generation cryoballoon ablation reduce very late recurrence of atrial fibrillation compared to radiofrequency ablation in patients with paroxysmal atrial fibrillation?
Absolute Event Rate: 84.5% vs 71%
p-value: p=0.037
Second-generation cryoballoon ablation is associated with a significantly lower rate of very late recurrence compared to radiofrequency ablation in patients with paroxysmal AF who remain arrhythmia-free for the first year post-procedure.
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A 2019 study conducted a cohort in paroxysmal atrial fibrillation (n=139). Second generation cryoballoon (CB2) ablation vs. Radiofrequency (RF) ablation was evaluated on freedom from very late recurrence (VLR) beyond 12-month follow-up (p=0.037).
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