Key result
Microwave and radiofrequency ablation during concomitant valve surgery yielded similar rates of freedom from atrial fibrillation at 12 months (81% vs 80%).
Why the study?
Does microwave ablation yield similar success rates to radiofrequency ablation for restoration of sinus rhythm in patients with chronic atrial fibrillation undergoing concomitant valve surgery?
Population
42 patients with chronic, persistent atrial fibrillation >6 months undergoing valve surgery and concomitant…
Comparison
Biatrial Maze procedure using microwave energy vs Biatrial Maze procedure using radiofrequency…
Design
Cohort
Follow-up
12 months
Authors
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Similar efficacy supports either modality with valve surgery; leaves open need for randomized confirmation.
Cohort (n=42)
Does microwave ablation yield similar success rates to radiofrequency ablation for restoration of sinus rhythm in patients with chronic atrial fibrillation undergoing concomitant valve surgery?
Absolute Event Rate: 81% vs 80%
Microwave and radiofrequency ablation during concomitant valve surgery yield similar rates of freedom from atrial fibrillation at 12 months.
Wisser et al. (2004) conducted a cohort in chronic, persistent atrial fibrillation (AF) >6 months (n=42). Microwave ablation (AFx Lynx) vs. Radiofrequency ablation (Medtronic Cardioblate) was evaluated on freedom from AF at 12 months. Microwave and radiofrequency ablation during concomitant valve surgery yielded similar rates of freedom from atrial fibrillation at 12 months (81% vs 80%).
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