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KMID : 0364020100430050475
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Korean Journal of Thoracic and Cardiovascular Surgery
2010 Volume.43 No. 5 p.475 ~ p.481
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Mid-Term Results of Mitral Valve Repair Using a Partial Flexible Band and a Completely Rigid Ring in Patients with Degenerative Mitral Regurgitation
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Kim Kyung-Hwan
Ahn Hyuk
Hwang Ho-Young
Choi Jin-Ho
Kim Ki-Bong
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Abstract
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Purpose: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).
Methods: From January 2004 to September 2008, 71 patients (M：F=36：35, 55±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).
Results: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 (≥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±2 days) and recovered by last follow-up (25±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).
Conclusions: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.
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KEYWORD
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Mitral valve, repair, Mitral valve regurgitation
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