The impact of maze operation on sinus rhythm conversion in patients with severe tricuspid regurgitation and persistent atrial fibrillation
Ilkun Park, Suryeun Chung, Yang Hyun Cho, Dong Seop Jeong, Ji-Hyuk Yang, Kiick Sung, Wook Sung Kim, Tae-Gook Jun
Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine
Purpose : Patients with severe tricuspid regurgitation and persistent atrial fibrillation might be poor candidate for maze operation due to large atrial diameter or previous cardiac surgery. We tried to define the success rate of maze operation in these patients and prognostic factors for maze success.
Methods : From 1994 January to 2017 December, patients with persistent atrial fibrillation and severe tricuspid regurgitation (TR), who underwent tricuspid valve surgery in a single center, were included. The primary endpoint was the rate of sinus rhythm conversion. The key secondary endpoint was the rate of the major adverse cardiovascular and cerebrovascular events (MACCE), which is the composite event of postoperative stroke, cardiac death, myocardial infarction and major bleeding. Propensity score matching analysis was used to compare maze group and non-maze group.
Results : In 388 patients included in this study, 172 patients (44%) underwent concomitant M. After propensity score matching, 123 patients in maze group were compared with 123 patients in non-maze group. Maze group had higher maze success rate at 10 years (42.4% vs. 3.1%, P<0.001), freedom from MACCE rate at 10 years (72.3% vs. 57.3%, P=0.106) and higher permanent pacemaker insertion rate (18.2% vs. 5.9%, P=0.037) than in non-maze group.
Conclusion : Maze operation in severe tricuspid regurgitation and persistent atrial fibrillation has acceptable rate of sinus rhythm conversion in the long-term. Also, Long-term freedom from major cardiovascular and cerebrovascular event rate tends to be higher in the maze group, with higher rate of permanent pacemaker implantation.
책임저자: Dong Seop Jeong
Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine
발표자: Ilkun Park, E-mail : thestyner@hotmail.com