Arrhythmias & electrophysiology

Impact of atrial fibrillation diagnosis-to-ablation time on 24-month efficacy and safety outcomes in the Cryo Global Registry

EuropacePublished Prospective registry cohort study

Authors' conclusion

CBA within 12 months from AF diagnosis resulted in higher freedom from AA recurrence and is associated with fewer safety events in a real-world evaluation.

Study context

Population
Patients with atrial fibrillation (AF) undergoing cryoballoon ablation in the Cryo Global Registry1,220 followed through 24 months
Participants
3,447 patients
Exposure
Early vs late cryoballoon ablation
  • Earlyn = 1,573
  • Laten = 1,874reference
Outcome
Freedom from atrial arrhythmia recurrence
Follow-up
24 months
Methodological detailsmulticentre, 121 centres in 37 countries
  • Multicentre
  • 121 centres in 37 countries

Main finding

As reported in the abstract

Freedom from atrial arrhythmia (AA) recurrence

P < 0.01

Observational data: associations, not effects.

Further findings

OutcomeAdjusted HR (CI)P value
Cardioversion41% lower risk0.59 (0.42–0.83)P < 0.01

Safety

Serious procedure-related adverse events

P = 0.045

Original publication

Impact of atrial fibrillation diagnosis-to-ablation time on 24-month efficacy and safety outcomes in the Cryo Global Registry. Europace. Published 21 January 2025. doi:10.1093/europace/euaf008

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