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Clinical Outcomes of Robotic Mitral Valve Repair: “A Single-center Experience in Korea”
Ho Jin Kim, Joon Bum Kim, Sung Ho jung, Suk Jung Choo, Cheol Hyun Chung, Jae Won Lee
Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, Ulsan University College of Medicine, Seoul, Korea

Background : Since the inception of robotic mitral valve repair in 2007 at our institution, it has become an acceptable surgical option with proven efficacy and safety. The objective of this study is to analyze the early and long-term clinical outcomes of patients undergoing robotic mitral valve repair.

Methods : A total of 310 patients (aged 48.4±13.7 years, 201 males) undergoing robotic mitral valve repair using the da Vinci system (Intuitive Surgical, Inc, Sunnyvale, CA) between August 2007 and December 2015 in our institution were evaluated. The preoperative demographics, operative profiles and postoperative outcomes including follow-up echocardiographic results were analyzed.

Results : Majority of patients (n=305, 98.4%) demonstrated a successful MV repair without significant residual MR postoperatively. There was no early death and the incidence of early major morbidities were as follows: early stroke (n=3, 1.0%), new onset dialysis (n=1, 0.3%) and reoperation (n=3, 1.0%). During a median follow-up of 55.7 months (inter-quartile range 30.3 to 81.3 months), 6 (1.9%) patients died and late reoperation due to mitral regurgitation and infective endocarditis occurred in 2 (0.6%) and 2 (0.6%) patients, respectively. Major event-free survival at 5 years was 87.6%. Late echocardiographic profiles (> 6 months) were obtained in 295 (95.2%) patients. During follow-up, 32 (10.8%) patients developed greater than mild mitral regurgitation (MR). Freedom from significant MR (> grade 2) at 5 years was 86.5%.

Conclusion : Robotic mitral valve repair is an efficacious procedure with feasible techniques. The robotic approach has few perioperative morbidities and manifests favorable long-term clinical outcomes including mitral durability.


책임저자: Jae Won Lee
Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, Ulsan University College of Medicine, Seoul, Korea
발표자: Ho Jin Kim, E-mail : rhonin.hojin@gmail.com

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