Key result
A prolonged PR interval (≥202 ms) was a significant predictor of atrial fibrillation recurrence after radiofrequency catheter ablation (HR 1.969; 95% CI 1.343 to 2.886; P=0.001).
Why the study?
Does a prolonged PR interval predict clinical recurrence of atrial fibrillation after radiofrequency catheter ablation in patients with AF?
Population
576 patients with atrial fibrillation undergoing radiofrequency catheter ablation.
Comparison
Highest quartile of PR interval on preprocedural… vs Lower quartiles of PR interval on preprocedural…
Design
Cohort
Follow-up
13.1±7.5 months
Authors
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May aid pre-ablation risk stratification in observational cohorts; leaves open prospective validation before guiding patient selection.
Cohort (n=576)
Does a prolonged PR interval predict clinical recurrence of atrial fibrillation after radiofrequency catheter ablation in patients with AF?
Effect estimate: HR 1.969 (95% CI 1.343 to 2.886)
p-value: p=0.001
A prolonged PR interval (≥202 ms) is associated with advanced left atrial remodeling and serves as a significant noninvasive predictor of AF recurrence after radiofrequency catheter ablation.
Park et al. (2014) conducted a cohort in Atrial fibrillation (n=576). Prolonged PR interval (≥202 ms) vs. Shorter PR intervals (<202 ms) was evaluated on Clinical recurrence of AF after RFCA (HR 1.969, 95% CI 1.343 to 2.886, p=0.001). A prolonged PR interval (≥202 ms) was a significant predictor of atrial fibrillation recurrence after radiofrequency catheter ablation (HR 1.969; 95% CI 1.343 to 2.886; P=0.001).
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