maze procedure cryoablation atrial flutter MAZE PROCEDURE The objectives of the Maze procedure are 3-fold: (1) to cure atrial fibrillation, (2) to restore atrioventricular synchrony, and (3) to restore both right and left atrial transport function. Heye Zhao, a Texas resident now in his 60’s, probably contracted mitral valve disease in his early 20’s in his native China. Doctors at Baylor University Medical Center decided that Mr. Zhao’s best option was to have a double mechanical valve transplant. SurgiFrost’s excellent safety profile allowed Dr. Hebeler to also perform a maze procedure to prevent the post-surgical incidence of AF. “Before he had his operation the doctor would not even let him travel. Now he drives a car and walks briskly for an hour every day,” says niece Sandy Li. She also reports that he has resumed teaching, tutoring students in mathematics.