In this review, the TT-maze seems equally effective as the CMIV procedure at the midterm follow-up, with a lower rate of complications. Specifically, the PM incidence is higher (0.8 vs 5–10%, respectively) [26, 29, 30, 37, 38]. Compared with the TT-maze, the stand-alone CMIV procedure is associated with higher mortality and morbidity rates. Adventist Heart Institute: "Hybrid Maze, TT Maze, Mini-Maze, Modified Maze or Surgical Ablation -- The Most Advanced Technique to Treat A-Fib." Your care will be provided by world-renowned experts including Dr. … Our heart specialists use a variety of tools to keep the heart’s rhythm steady. Maze surgery is a treatment for atrial fibrillation (AFib), an irregular heartbeat. The maze procedure is a surgical intervention used to treat atrial fibrillation when medications can't adequately control frequent arrhythmias. If you suffer from atrial fibrillation, you may be eligible for the new, minimally invasive TT maze procedure. before any procedure, it's wise to discuss the risks and benefits of the surgery with your doctor. the possible risks are like those from other types of heart surgery: *heart attack *stroke *bleedi Furthermore, the TT-maze has demonstrated similar efficacy to the Cox Maze IV procedure at the midterm follow-up with a lower complication rate. Reviewed by James Beckerman on May 17, 2018 We conclude that the TT-maze is an effective strategy for the treatment of AF with maintained efficacy at the 2-year follow-up. The traditional Maze procedure is done during open heart surgery. A battery-powered pacemaker, installed in a short surgical procedure, helps keep the heart beating normally. Pacemakers and Defibrillators.