Korean J Thorac Cardiovasc Surg.  2010 Oct;43(5):475-481.

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

Affiliations
  • 1Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Korea. ahnhyuk@snu.ac.kr

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+/-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 (> or =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).
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.

Keyword

Mitral valve, repair; Mitral valve regurgitation

MeSH Terms

Atrial Fibrillation
Cardiac Output, Low
Disease-Free Survival
Follow-Up Studies
Freedom
Hospital Mortality
Humans
Mitral Valve
Mitral Valve Annuloplasty
Mitral Valve Insufficiency
Postoperative Period
Stroke Volume
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