Key result
Left atrial catheter ablation (LACA) was more effective than segmental ostial catheter ablation (SOCA) for achieving freedom from symptomatic PAF at 6 months (88% vs 67%, P=0.02).
Why the study?
Does left atrial catheter ablation (LACA) improve freedom from symptomatic atrial fibrillation compared to segmental ostial catheter ablation (SOCA) in patients with paroxysmal atrial fibrillation?
Population
80 consecutive patients with symptomatic paroxysmal atrial fibrillation (PAF), mean age 52+/-10 years.
Comparison
Left atrial catheter ablation encircling the… vs Segmental ostial catheter ablation targeting…
Design
Cohort
Follow-up
6 months
Authors
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LACA may improve 6-month PAF control versus SOCA in this cohort; leaves open durability, safety, and need for randomized confirmation.
Cohort (n=80)
Does left atrial catheter ablation (LACA) improve freedom from symptomatic atrial fibrillation compared to segmental ostial catheter ablation (SOCA) in patients with paroxysmal atrial fibrillation?
Absolute Event Rate: 88% vs 67%
p-value: p=0.02
Left atrial catheter ablation encircling the pulmonary veins is significantly more effective than segmental ostial ablation for preventing symptomatic recurrence in patients with paroxysmal atrial fibrillation.
Oral et al. (2003) conducted a cohort in Symptomatic paroxysmal atrial fibrillation (n=80). Left atrial catheter ablation (LACA) vs. Segmental ostial catheter ablation (SOCA) was evaluated on Freedom from symptomatic PAF when not taking antiarrhythmic drug therapy (p=0.02). Left atrial catheter ablation (LACA) was more effective than segmental ostial catheter ablation (SOCA) for achieving freedom from symptomatic PAF at 6 months (88% vs 67%, P=0.02).
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