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http://dx.doi.org/10.5090/kjtcs.2010.43.5.475

Mid-Term Results of Mitral Valve Repair Using a Partial Flexible Band and a Completely Rigid Ring in Patients with Degenerative Mitral Regurgitation  

Kim, Kyung-Hwan (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital)
Ahn, Hyuk (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital)
Hwang, Ho-Young (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital)
Choi, Jin-Ho (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital)
Kim, Ki-Bong (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital)
Publication Information
Journal of Chest Surgery / v.43, no.5, 2010 , pp. 475-481 More about this Journal
Abstract
Background: We evaluated mid-term results of mitral annuloplasty using a flexible band and a completely rigid ring for mitral valve repair in patients with degenerative mitral regurgitation (MR). Material and Method: From January 2004 to September 2008, 71 patients (M:F=36:35, $55{\pm}13$ years) underwent mitral valve repair with mitral annuloplasty for degenerative MR. Ring annuloplasty was done using a Cosgrove-Edwards flexible band (Group I, n=43) or a Carpentier-Edwards classic ring (Group II, n=28). There were no differences in preoperative characteristics of the participants. Average duration of follow-up was 36 months (range: 2~69 mos). Result: There was no in-hospital mortality. Postoperative morbidity, which included atrial fibrillation (n=7) and low cardiac output syndrome (n=5) in groups I and II were similar. There was one late death in group II. The proportion exhibiting freedom from recurrent mitral regurgitation ($\geq$moderate) at 4 years in Groups I and II were, respectively, 94.5 and 91.8%, (p=0.695). Left ventricular ejection fraction decreased in the early postoperative period ($7{\pm}2$ days) and recovered by last follow-up ($25{\pm}16$ mos; p=0.002). The pattern was similar in groups I and II (p=0.905). Re-operation was performed in 3 patients (1 in Group I and 2 in Group II, p=0.316). Four-year event-free survival (free of adverse valve-related events) was 95.2% for Group I and 92.6% for Group II; this difference was not significant, p=0.646). Conclusion: The type of technique used in mitral annuloplasty to repair the mitral valve repair after degenerative MR did not affect mid-term clinical and functional results.
Keywords
Mitral valve, repair; Mitral valve regurgitation;
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