Medium-term results after the modified Cox/Maze procedure combined with other cardiac surgery

Objective: Long-term results after the modified Cox/Maze III procedure combined with other cardiac procedure for the treatment of organic heart disease and chronic atrial fibrillation (AF) has not been clarified. This report describes our medium-term results after such operation. Methods: Between March 1993 and August 1995, 104 consecutive patients with chronic AF underwent the modified Cox/Maze III procedure combined with other cardiac procedure. There were 100 long-term survivors. There were 45 men and 55 women, with ages ranging from 21 to 77 years (mean 59.7). Patients were followed up and changes in rhythm, need for pacemaker implantation, and the incidence of CNS (central nervous system) complications were retrospectively studied. Results: The follow-up was complete in 103 patients and 99 long-term survivors (99%). The mean follow-up period was 44.6±1.1 months. In the immediate postoperative period, 73 patients regained sinus rhythm (SR group), 21 patients were in AF (AF group), and six patients underwent pacemaker implantation because of sick sinus syndrome (SSS). During the follow-up period, eight patients died. One- and 5-year survival rates (Kaplan–Meier) after surgery was 95.1±2.3 and 87.8±3.4% for the entire group. Preoperative NYHA class was 2.5±0.7 and medium-term NYHA class was 1.5±0.5. (P