Key result
The presence of a left common pulmonary vein was associated with reduced 1-year AF-free survival (55.1% vs 70.6%) and increased risk of AF recurrence (HR 2.996) after cryoballoon ablation.
Why the study?
Does the presence of a left common pulmonary vein increase the risk of atrial fibrillation recurrence in patients undergoing first pulmonary vein isolation with a second-generation cryoballoon?
Population
270 consecutive patients scheduled for first pulmonary vein isolation for paroxysmal or persistent atrial…
Comparison
Pulmonary vein isolation with second-generation… vs Pulmonary vein isolation with second-generation…
Design
Cohort
Follow-up
median 77.0 weeks
Authors
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LCPV may affect AF-free survival after cryoballoon PVI; leaves open whether anatomy-tailored strategies improve outcomes.
Cohort (n=270)
Does the presence of a left common pulmonary vein increase the risk of atrial fibrillation recurrence in patients undergoing first pulmonary vein isolation with a second-generation cryoballoon?
Hazard Ratio: 2.996
Absolute Event Rate: 55.1% vs 70.6%
p-value: p=0.028
The presence of a left common pulmonary vein is associated with a nearly threefold increased risk of atrial fibrillation recurrence after second-generation cryoballoon ablation.
Beiert et al. (2017) conducted a cohort in Paroxysmal or persistent atrial fibrillation (n=270). Left common pulmonary vein (LCPV) vs. Absence of LCPV was evaluated on AF-free survival at 1-year follow-up (HR 2.996, p=0.028). The presence of a left common pulmonary vein was associated with reduced 1-year AF-free survival (55.1% vs 70.6%) and increased risk of AF recurrence (HR 2.996) after cryoballoon ablation.
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