The total thoracoscopic Maze (TT Maze) procedure prevents the occurrence of atrial fibrillation (Afib). Usually this procedure is recommended if medications, cardioversion, and catheter ablation have failed to control the atrial fibrillation.
Afib is a heart arrhythmia, during which electrical signals fire rapidly and erratically within the atria (top heart chambers), making the atria unable to beat normally. The TT Maze Procedure is a minimally-invasive surgical procedure performed to create a new, stable, and defined electrical pathway (a surgically created “maze”) for impulses to travel within the atria. This procedure is considered minimally-invasive because:
The objective of this procedure is to control the chaotic heart beats that result from atrial fibrillation, but sometimes medications or a pacemaker may be required after surgery.
The TT Maze procedure is performed operating room with the patient under general anesthesia. It generally takes about 2-4 hours to complete.