Key result
Early recurrence of atrial fibrillation after cryoballoon ablation was associated with a higher rate of late recurrence compared to those without early recurrence (50% vs 12.8%, p=0.00285).
Why the study?
Little is known about the impact of very early and early recurrence of AF after cryoballoon ablation on recurrence beyond the 3-month recovery period.
Cohort (n=90)
No
Absolute Event Rate: 50% vs 12.8%
p-value: p=0.00285
Early recurrence of AF within 3 months after cryoballoon ablation predicts late recurrence, whereas very early recurrence within 3 days does not correlate with long-term clinical outcomes.
Early recurrence after cryoballoon ablation may predict late recurrence; hypothesis-generating and should not yet change practice.
Background: Recurrences within 3 months after radiofrequency catheter ablation of atrial fibrillation (AF) have been reported to be associated with the onset of recurrence after 3 months. Although very early recurrence of AF (VERAF) and early recurrence of AF (ERAF) after cryoballoon (CB) ablation are sometimes observed, little is known about their impact on recurrence beyond a recovery period of 3 months. This study aimed to clarify the characteristics of the VERAF and ERAF of AF after CB ablation.
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Arai et al. (2018) conducted a cohort in Paroxysmal and persistent atrial fibrillation (n=90). Early recurrence of atrial fibrillation (ERAF) vs. No early recurrence of atrial fibrillation was evaluated on Late recurrence of atrial fibrillation (LRAF) between 3 and 12 months (p=0.00285). Early recurrence of atrial fibrillation after cryoballoon ablation was associated with a higher rate of late recurrence compared to those without early recurrence (50% vs 12.8%, p=0.00285).
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