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  • Title: Is rheumatic mitral valve repair still a feasible alternative?: indications, technique, and results.
    Author: Bakir I, Onan B, Onan IS, Gul M, Uslu N.
    Journal: Tex Heart Inst J; 2013; 40(2):163-9. PubMed ID: 23678214.
    Abstract:
    Rheumatic heart disease is still a major cause of mitral valve dysfunction in developing countries. We present our early results of rheumatic mitral valve repair. From August 2009 through July 2011, 60 patients (24 male and 36 female) with rheumatic disease underwent mitral repair. The mean age was 51.1 ± 13.8 years (range, 16-77 yr). Forty-nine patients were in New York Heart Association functional class III or IV. Repair procedures included chordal and papillary muscle splitting, secondary chordal division, mitral ring annuloplasty (n=58), commissurotomy (n=36), chordal replacement (n=9), posterior leaflet extension (n=4), annular decalcification (n=2), and quadrangular resection (n=2). Secondary procedures included tricuspid ring annuloplasty, left atrial ablation, obliteration of left atrial appendage, aortic valve replacement, and left atrial reduction. The early (30-d) mortality rate was 1.7%. The mean follow-up time was 14.9 ± 5 months (range, 4-26 mo). Follow-up echocardiography revealed trivial or no mitral regurgitation (MR) in 35.5% and mild (1+) MR in 49.1% of patients. Only 1 patient presented with severe (3+) MR. The mean MR grade decreased from 3.2 ± 0.9 to 0.3 ± 0.4 postoperatively (P=0.001). Left ventricular end-diastolic diameter and left atrial diameter significantly decreased postoperatively (P=0.006 and P=0.001, respectively). The mean gradient over the mitral valve decreased significantly from 11 ± 5.9 mmHg to 3.5 ± 1.8 mmHg (P=0.001). Because current techniques of mitral repair can effectively correct valve dysfunction in most patients with rheumatic disease, the number of repair procedures should be increased in developing countries to prevent complications of mechanical valve placement.
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