The Maze procedure is performed in patients with atrial fibrillation to restore the heart to a normal rhythm. It is typically performed during other types of heart surgery, but can also be performed independently.
Atrial fibrillation can cause the heart to beat rapidly and irregularly. The Maze procedure disrupts the abnormal electrical conduction of the heart to restore normal heart rhythm. The procedure entails using different energy sources (heat, cold, electricity, or ultrasound) to block the abnormal signals associated with atrial fibrillation.