Key result
The Maze I procedure resulted in a regular rhythm in all 8 patients undergoing mitral valve surgery, compared to 1 of 4 patients receiving the Maze III procedure.
Why the study?
How do the outcomes of Maze I and Maze III procedures compare when performed concomitantly with mitral valve surgery in patients with chronic atrial fibrillation?
Observational (n=12)
How do the outcomes of Maze I and Maze III procedures compare when performed concomitantly with mitral valve surgery in patients with chronic atrial fibrillation?
In a small series of patients undergoing mitral valve surgery, the Maze I procedure resulted in regular (mostly junctional) rhythms, while the Maze III procedure showed variable rhythm outcomes but preserved systolic atrial flow in some patients.
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Case series data should not alter practice; leaves open comparative efficacy of Maze lesion sets in mitral surgery.
João Melo (1997) conducted an observational in Mitral valve disease with concomitant chronic atrial fibrillation (n=12). Maze I procedure vs. Maze III procedure was evaluated on Postoperative rhythm. The Maze I procedure resulted in a regular rhythm in all 8 patients undergoing mitral valve surgery, compared to 1 of 4 patients receiving the Maze III procedure.
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