Key result
The presence of a left common pulmonary vein was associated with lower 15-month freedom from atrial tachyarrhythmias after cryoballoon ablation compared to its absence (77% vs 89%, P=0.02).
Why the study?
Does the presence of a left common pulmonary vein worsen outcomes of cryoballoon ablation in patients with paroxysmal atrial fibrillation?
Population
324 consecutive patients with paroxysmal atrial fibrillation undergoing pulmonary vein isolation with a…
Comparison
Pulmonary vein isolation using a cryoballoon in… vs Pulmonary vein isolation using a cryoballoon in…
Design
Cohort
Follow-up
mean 454 ± 195 days
Authors
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May support CB-PVI feasibility in LCPV anatomy; leaves open whether outcomes match standard PV variants in prospective trials.
Cohort (n=324)
Does the presence of a left common pulmonary vein worsen outcomes of cryoballoon ablation in patients with paroxysmal atrial fibrillation?
Absolute Event Rate: 77% vs 89%
p-value: p=0.02
The presence of a left common pulmonary vein is associated with worse long-term freedom from atrial tachyarrhythmias following cryoballoon ablation for paroxysmal atrial fibrillation.
Shigeta et al. (2017) conducted a cohort in paroxysmal atrial fibrillation (n=324). Presence of a left common pulmonary vein (LCPV) vs. Absence of an LCPV was evaluated on freedom from atrial tachyarrhythmias (p=0.02). The presence of a left common pulmonary vein was associated with lower 15-month freedom from atrial tachyarrhythmias after cryoballoon ablation compared to its absence (77% vs 89%, P=0.02).
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