Why the study?
What are the preprocedure predictors of atrial fibrillation recurrence after radiofrequency catheter ablation?
Population
Patients undergoing radiofrequency ablation for atrial fibrillation across 31 studies and 25 studies.
Comparison
Radiofrequency catheter ablation vs Paroxysmal vs nonparoxysmal AF
Design
Meta-analysis
Key result
Nonparoxysmal atrial fibrillation predicted a higher risk of AF recurrence after radiofrequency ablation compared to paroxysmal AF (RR 1.59; 95% CI 1.38-1.82; P<0.001).
Authors
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Nonparoxysmal AF warrants closer post-ablation monitoring; confirms its independent predictive value across studies.
Systematic Review
What are the preprocedure predictors of atrial fibrillation recurrence after radiofrequency catheter ablation?
Effect estimate: RR 1.59 (95% CI 1.38-1.82)
p-value: p=<0.001
Nonparoxysmal AF is a significant predictor of AF recurrence after radiofrequency ablation, whereas age, gender, and structural heart disease were not independent predictors in typical patient populations.
Balk et al. (2010) conducted a systematic review in Atrial fibrillation. Nonparoxysmal AF vs. Paroxysmal AF was evaluated on Atrial fibrillation recurrence (RR 1.59, 95% CI 1.38-1.82, p=<0.001). Nonparoxysmal atrial fibrillation predicted a higher risk of AF recurrence after radiofrequency ablation compared to paroxysmal AF (RR 1.59; 95% CI 1.38-1.82; P<0.001).