What is the Maze procedure?
The Maze procedure is a surgical treatment for atrial fibrillation (AFib) that creates a pattern of scar lines in the atria to redirect electrical signals and restore normal heart rhythm. Originally performed using a "cut-and-sew" technique, modern Maze procedures use radiofrequency energy or cryoablation to create the lesion pattern. The full Cox-Maze IV procedure has a 90-95% success rate for eliminating AFib at experienced centers.
The complete answer.
The Maze procedure is most commonly performed concomitantly with other cardiac surgery — for example, during mitral valve repair in a patient who also has AFib. Standalone surgical Maze is also an option for patients who have failed catheter ablation. The 2020 ACC/AHA guidelines provide a Class IIa recommendation for surgical ablation during concomitant cardiac surgery. Left atrial appendage closure is typically performed simultaneously to reduce stroke risk.
Have more questions? Our Heart Team has answers.
Get a personalized, expert second opinion for your specific situation. 24-hour turnaround starting at $500.