Guillaume S C Geuzebroek1, Mohamed Bentala2, Sander G Molhoek3, Johannes C Kelder4, Jeroen Schaap3, Bart P Van Putte5. 1. Department of Cardio-Thoracic Surgery, St Antonius Hospital, Nieuwegein, Netherlands g.s.c.geuzebroek@gmail.com. 2. Department of Cardio-Thoracic Surgery, Amphia Hospital, Breda, Netherlands. 3. Department of Cardiology, Amphia Hospital, Breda, Netherlands. 4. Department of Cardio-Thoracic Surgery, St Antonius Hospital, Nieuwegein, Netherlands. 5. Department of Cardio-Thoracic Surgery, St Antonius Hospital, Nieuwegein, Netherlands Department of Cardio-Thoracic Surgery, Amphia Hospital, Breda, Netherlands.
Abstract
OBJECTIVES: The totally thoracoscopic left atrial Maze (TT-Maze) is a relatively new surgical solution for the treatment of atrial fibrillation (AF). The procedure consists of a complete left atrial Maze, which is performed by video-assisted thoracoscopy with the use of radiofrequency ablation. We describe our rhythm results as well as our learning curve experience of the TT-Maze. METHODS: To evaluate the learning curve, all consecutive patients who underwent a TT-Maze and were operated by one surgeon (Bart P. Van Putte) were included in the study. The endpoint of surgery was sinus rhythm with a bidirectional block of the box and pulmonary veins. RESULTS: A total of 83 patients were included. Fifty percent of the patients had paroxysmal AF. The mean indexed left atrial volume was 44 ± 15 ml/m(2) and 38% of the patients had a previous catheter ablation for AF. During a mean follow-up of 10.9 ± 4.9 months, there were no major events. At latest follow-up, 82% of the patients did not have a single registration of AF or other atrial tachyarrhythmias longer than 30 s. Patients without AF were also free from anti-arrhythmic drugs in 90% of the cases, free from coumadins or direct oral anticoagulants in 63% of the cases and free from both in 58% of the cases. CONCLUSIONS: After almost 1-year follow-up, the TT-Maze is proved to be a successful, safe and reproducible strategy for the treatment of all types of AF including patients with enlarged left atria and previously failed catheter ablation.
OBJECTIVES: The totally thoracoscopic left atrial Maze (TT-Maze) is a relatively new surgical solution for the treatment of atrial fibrillation (AF). The procedure consists of a complete left atrial Maze, which is performed by video-assisted thoracoscopy with the use of radiofrequency ablation. We describe our rhythm results as well as our learning curve experience of the TT-Maze. METHODS: To evaluate the learning curve, all consecutive patients who underwent a TT-Maze and were operated by one surgeon (Bart P. Van Putte) were included in the study. The endpoint of surgery was sinus rhythm with a bidirectional block of the box and pulmonary veins. RESULTS: A total of 83 patients were included. Fifty percent of the patients had paroxysmal AF. The mean indexed left atrial volume was 44 ± 15 ml/m(2) and 38% of the patients had a previous catheter ablation for AF. During a mean follow-up of 10.9 ± 4.9 months, there were no major events. At latest follow-up, 82% of the patients did not have a single registration of AF or other atrial tachyarrhythmias longer than 30 s. Patients without AF were also free from anti-arrhythmic drugs in 90% of the cases, free from coumadins or direct oral anticoagulants in 63% of the cases and free from both in 58% of the cases. CONCLUSIONS: After almost 1-year follow-up, the TT-Maze is proved to be a successful, safe and reproducible strategy for the treatment of all types of AF including patients with enlarged left atria and previously failed catheter ablation.
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