Key result
Pulmonary vein ablation shows ~55% sinus rhythm maintenance at six months in drug-resistant AF.
Why the study?
The outcomes and safety of first pulmonary vein ablation procedures for idiopathic AF at non-pioneering centers were not well reported.
Population
100 consecutive patients with highly symptomatic, drug resistant idiopathic AF undergoing first pulmonary vein ablation
Design
Prospective observational study at a university hospital electrophysiology unit
Follow-up
Six months
Authors
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Early PV ablation experience at non-pioneering centers was associated with moderate six-month success; leaves open long-term efficacy and broader applicability.
Observational (n=100)
No
Focal pulmonary vein catheter ablation for drug-resistant idiopathic AF achieved stable sinus rhythm in 55% of patients at six months, though it carried a 12% complication rate including cardiac tamponade.
John Bourke (2004) conducted an observational in idiopathic atrial fibrillation (n=100). Pulmonary vein catheter ablation was evaluated on Incidence of symptomatic or asymptomatic, Holter documented AF six months after ablation. Pulmonary vein catheter ablation for drug-resistant idiopathic atrial fibrillation resulted in 55% of patients maintaining stable sinus rhythm at 6 months, with a 12% complication rate.
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