Key result
Intraoperative radiofrequency ablation during mitral valve surgery resulted in 88.5% of patients being in sinus rhythm after 12 months of follow-up, with no postoperative mortality.
Why the study?
Does intraoperative radiofrequency ablation restore sinus rhythm in patients with atrial fibrillation undergoing mitral valve surgery?
Observational (n=52)
Does intraoperative radiofrequency ablation restore sinus rhythm in patients with atrial fibrillation undergoing mitral valve surgery?
Left atrial monopolar radiofrequency ablation during mitral valve surgery is safe and highly effective, achieving sinus rhythm in 88.5% of patients at 12 months.
Answers are grounded in this paper and cite their sources.
May support adjunct RF ablation in mitral surgery with AF; leaves open randomized confirmation before practice change.
OBJECTIVES: Atrial fibrillation is the most common form of arrhythmia in mitral valve disease. Radiofrequency ablation is most commonly used for atrial fibrillation ablation during mitral valve surgery. METHODS: This prospective study evaluated the midterm outcomes of intraoperative radiofrequency atrial fibrillation ablation during mitral valve surgery. RESULTS: 52 patients were eligible for the study. Fifteen (28.8%) had a transseptal approach and 37 had a left atriotomy. Mitral valve replacement was performed in 16 patients, mitral valve repair in 31, and tricuspid repair in 8. Mean crossclamp time was 58.14.± 20.08 min, and mean cardiopulmonary bypass time was 71.28 ± 20.31 min. The mean ablation time was 6.41 ± 0.21 min. There was no postoperative mortality. Sinus rhythm was documented in 44 (84.6%) patients on discharge, and 8 (15.4%) were discharged with atrial fibrillation; 2 of them returned to sinus rhythm after 3 months. After 12 months of follow-up, 46 (88.5%) patients were in sinus rhythm. CONCLUSION: Left atrial monopolar radiofrequency ablation during mitral valve surgery is a safe procedure with a high success rate.
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Oueida et al. (2014) conducted an observational in Atrial fibrillation and mitral valve disease (n=52). Intraoperative radiofrequency atrial fibrillation ablation was evaluated on Sinus rhythm at 12 months. Intraoperative radiofrequency ablation during mitral valve surgery resulted in 88.5% of patients being in sinus rhythm after 12 months of follow-up, with no postoperative mortality.
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