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Cosgrove-Edwards Annuloplasty System: midterm results
A M Gillinov1, D M Cosgrove, T Shiota
1Department of Thoracic and Cardiovascular Surgery, The Cleveland Clinic Foundation, Ohio 44195, USA. gillinom@ccf.org
The Annals of Thoracic Surgery
|April 6, 2000
Summary
The Cosgrove-Edwards Annuloplasty System effectively repairs mitral regurgitation, preserving annular flexibility and function. Midterm results show high survival and low reoperation rates in patients undergoing mitral valve repair.
Area of Science:
- Cardiovascular Surgery
- Cardiac Valve Repair
- Biomedical Engineering
Background:
- The Cosgrove-Edwards Annuloplasty System utilizes a flexible band for mitral annular dilatation correction.
- Mitral annular dilatation is addressed through measured plication of the posterior annulus.
Purpose of the Study:
- To evaluate midterm clinical and functional outcomes of the Cosgrove-Edwards Annuloplasty System.
- Assessing the efficacy of this flexible annuloplasty band in mitral valve repair.
Main Methods:
- 197 consecutive patients with mitral regurgitation underwent mitral valve repair using the system (Feb 1993-July 1994).
- Valve disease etiologies included degenerative (73%), rheumatic (15%), ischemic (5%), and infectious (2.5%).
Main Results:
- Immediate post-repair echocardiography showed no/trivial regurgitation in 92% of patients.
- Four-year actuarial survival was 93%, with 95% freedom from reoperation.
- Midterm follow-up confirmed preserved mitral annular shape and function, with a 28% decrease in annular orifice area during the cardiac cycle.
Conclusions:
- The annuloplasty system demonstrates effectiveness in repairing mitral regurgitation from all causes.
- Preservation of mitral annular flexibility and function is maintained at 5-year follow-up.