Key result
Laser balloon-guided pulmonary vein isolation showed similar 1-year rates of atrial fibrillation or atrial tachycardia recurrence compared to radiofrequency ablation (27.5% vs 22.5%; P=0.87).
Why the study?
Does laser balloon-guided PVI improve freedom from atrial fibrillation compared to radiofrequency ablation in patients with persistent atrial fibrillation?
Cohort (n=80)
Does laser balloon-guided PVI improve freedom from atrial fibrillation compared to radiofrequency ablation in patients with persistent atrial fibrillation?
Absolute Event Rate: 27.5% vs 22.5%
p-value: p=0.87
Laser balloon-guided PVI demonstrates similar efficacy to irrigated radiofrequency ablation for achieving 1-year freedom from atrial fibrillation in patients with short-duration persistent AF.
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LB-guided PVI feasibility in persistent AF is suggested but unproven; leaves open randomized trials versus RF.
Bordignon et al. (2015) conducted a cohort in persistent atrial fibrillation (n=80). Laser balloon-guided pulmonary vein isolation vs. Circumferential pulmonary vein isolation using irrigated radiofrequency ablation was evaluated on 1-year single procedure AF/atrial tachycardia (AT) recurrences (p=0.87). Laser balloon-guided pulmonary vein isolation showed similar 1-year rates of atrial fibrillation or atrial tachycardia recurrence compared to radiofrequency ablation (27.5% vs 22.5%; P=0.87).
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