Key result
Surgical ablation using the Cox-Maze IV procedure remains the gold standard for atrial fibrillation, while new hybrid approaches show promising early results but require further evaluation.
The Cox-Maze IV procedure remains the gold standard for surgical treatment of atrial fibrillation, while new hybrid approaches show promise but require further standardization and long-term evaluation.
Cox-Maze IV remains surgical AF standard; hybrid approaches require prospective validation before wider adoption.
PURPOSE OF REVIEW: The aim of this review is to focus specifically on the indications, evolution of technique, and results of surgical ablation for atrial fibrillation. RECENT FINDINGS: With the introduction of the Cox-Maze IV procedure utilizing bipolar radiofrequency ablation and cryoablation, long-term studies have demonstrated a significant decrease in aortic cross-clamp times and major complications with a comparable rate of restoration of sinus rhythm. New hybrid approaches utilizing both catheter-based ablation and minimally invasive surgical approaches have been developed, but have not been standardized. Early studies have demonstrated reasonable success rates of hybrid procedures, with advantages that include confirmation of conduction block, decreased surgical morbidity, and possibly reduced morbidity. However, hybrid approaches have the disadvantage of significantly increased operative times. SUMMARY: The Cox-Maze IV is currently the gold standard for surgical treatment of atrial fibrillation. New hybrid approaches have potential advantages with promising early results, but a standard lesion set, improvement in operative times, and long-term results still need to be evaluated.
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Lawrance et al. (2014) conducted a review in Atrial fibrillation. Surgical ablation (Cox-Maze IV and hybrid approaches) was evaluated. Surgical ablation using the Cox-Maze IV procedure remains the gold standard for atrial fibrillation, while new hybrid approaches show promising early results but require further evaluation.
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