[Modification of Maze Procedure in Nippon Medical School:Striving Towards Restoration of Sinus Rhythm with Physiological Activation of Atria].

ABSTRACT

Atrial fibrillation surgery is beneficial for restoring sinus rhythm and maintaining the physiological atrial contraction to prevent left atrial thrombus formation. The radial procedure, a good alternative to the maze procedure, has been performed at Nippon Medical School;it was designed to maintain physiological atrial excitation and blood flow. The design reduces the incision line and avoids conduction delay in the atrium through the use of ablation devices and intraoperative mapping of atrial excitation patterns. In addition, it preserves sinus node function and cardiac conduction pathway;this could prevent postoperative pacemaker implantation.