Key result
Absence of early atrial tachyarrhythmias relapse after pulmonary vein ablation predicted higher long-term clinical success compared to early relapse (95% vs 43%, P<0.0001).
Why the study?
Does early atrial tachyarrhythmia recurrence predict long-term clinical success after circumferential anatomical pulmonary vein ablation?
Population
143 consecutive patients who underwent circumferential anatomical pulmonary vein ablation
Design
Cohort
Follow-up
mean 18.7 +/- 7.2 months
Authors
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Early recurrence after PVI signals higher long-term failure risk; leaves open whether the blanking period should be shortened in future trials.
Cohort (n=143)
Does early atrial tachyarrhythmia recurrence predict long-term clinical success after circumferential anatomical pulmonary vein ablation?
Absolute Event Rate: 95% vs 43%
p-value: p=< 0.0001
Early atrial tachyarrhythmia recurrence within the first 3 months after pulmonary vein ablation is associated with lower long-term success, though nearly half of patients relapsing in the first month still achieve long-term cure.
Bertaglia et al. (2005) conducted a cohort in Atrial fibrillation (n=143). No early atrial tachyarrhythmias relapse vs. Early atrial tachyarrhythmias relapse was evaluated on Long-term clinical success (p=< 0.0001). Absence of early atrial tachyarrhythmias relapse after pulmonary vein ablation predicted higher long-term clinical success compared to early relapse (95% vs 43%, P<0.0001).
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