Key result
Biatrial CryoMaze during valve surgery shows ~73% sinus rhythm recovery when including additional therapy.
Why the study?
The effectiveness and outcomes of the CryoMaze procedure for non-paroxysmal atrial fibrillation in patients undergoing heart valve surgery were evaluated due to limited data.
Does the biatrial CryoMaze procedure improve sinus rhythm recovery in patients with atrial fibrillation undergoing heart valve surgery?
Observational (n=22)
Does the biatrial CryoMaze procedure improve sinus rhythm recovery in patients with atrial fibrillation undergoing heart valve surgery?
Answers are grounded in this paper and cite their sources.
The biatrial CryoMaze procedure during heart valve surgery results in a 73% rate of sinus rhythm recovery at approximately 10 months when combined with additional therapies.
OBJECTIVE: To evaluate the results of CryoMaze procedure for non-paroxysmal atrial fibrillation in patients undergoing heart valve surgery. MATERIAL AND METHODS: Cryoablation was performed in 22 patients with paroxysmal AF undergoing heart valve surgery in 2022-2023. All patients underwent biatrial ablation procedure. RESULTS: In-hospital postoperative period was characterized by frequent paroxysms AF and atrial flutter (50%), AF persistence in 8 patients (36%), stable sinus rhythm in 3 patients (14%) and temporary pacing in more than 50% of cases. Implantation of permanent pacemaker was necessary in two patients (9%). Mean follow-up period was 10.2±3.7 months. Considering additional therapy (drug therapy, electrical cardioversion, catheter ablation), we can emphasize high percentage of sinus rhythm recovery outside the «blind period» after biatrial CryoMaze procedure (16 (73%) patients). At the same time, catheter ablation can increase the effectiveness of CryoMaze procedure.
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Bagdasaryan et al. (2025) conducted an observational in Atrial fibrillation in patients undergoing heart valve surgery (n=22). Biatrial CryoMaze procedure was evaluated on Sinus rhythm recovery outside the blind period. The biatrial CryoMaze procedure during heart valve surgery resulted in sinus rhythm recovery in 73% of patients outside the blind period when considering additional therapy.
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