Why the study?
Does segmental ostial ablation during atrial fibrillation achieve comparable pulmonary vein isolation compared to ablation during sinus rhythm in patients with AF?
Population
40 consecutive patients undergoing pulmonary vein isolation for atrial fibrillation, with 125 PVs targeted…
Comparison
Segmental pulmonary vein ostial ablation… vs Segmental pulmonary vein ostial ablation…
Design
Cohort
Key result
Segmental ostial ablation during atrial fibrillation achieved complete pulmonary vein isolation in 100% of targeted veins compared to 96% during sinus rhythm (P=0.4).
Authors
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Supports AF-guided ablation with comparable isolation; leaves open randomized outcome trials before practice change.
Observational (n=40)
Does segmental ostial ablation during atrial fibrillation achieve comparable pulmonary vein isolation compared to ablation during sinus rhythm in patients with AF?
Absolute Event Rate: 100% vs 96%
p-value: p=0.4
Segmental ostial ablation guided by PV tachycardia during AF is feasible and achieves similar isolation rates as ablation during sinus rhythm, supporting the role of PV tachycardias in AF perpetuation.
Oral et al. (2002) conducted an observational in Atrial fibrillation (n=40). Segmental pulmonary vein ostial ablation during atrial fibrillation vs. Segmental pulmonary vein ostial ablation during sinus rhythm was evaluated on Complete pulmonary vein isolation (p=0.4). Segmental ostial ablation during atrial fibrillation achieved complete pulmonary vein isolation in 100% of targeted veins compared to 96% during sinus rhythm (P=0.4).