Why it's done

The maze procedure is done to correct atrial fibrillation and improve the quality of life of people with this condition.

The maze procedure is the preferred method of atrial fibrillation treatment if you also need another heart surgery, such as for coronary artery bypass or valve repair. In these cases, the maze procedure is done during open-heart surgery. It may also be the preferred treatment for people who don't respond to other treatments or are experiencing a recurrence of atrial fibrillation.