[The effect of mitral valve repair and postoperative mitral valve function]

Thirty-six patients who underwent mitral valve repair were analyzed to evaluate the effect of mitral valve reconstructive technique. The final aim of this technique is to true up the coaptation line of both leaflets. Resection and reconstruction of the leaflet was performed on anterior leaflet in 11, on posterior leaflet in 12, and on both leaflets in 5. The newly contrived wrapping and shortening chordoplasty was performed on anterior leaflet in 6, on posterior leaflet in 3, and on both leaflets in 2. Two patients had replacement of artificial chordae tendinae with EPTFE suture. Commissuroplasty was performed at anterolateral commissure in 5, at posteromedian commissure in 15, and at both commissures in 5. Thirty patients with dilated annulus underwent ring annuloplasty with Carpentier ring. LVEDVI and LVESVI significantly decreased after mitral valve repair, and left ventricular volume overload was markedly reduced. Mitral valve orifice area was 3.23 +/- 1.14 cm2 and did not show the sign of mitral stenosis after repair. Left ventricular pressure volume area, which reflects the oxygen consumption of the myocardium, was markedly reduced after successful mitral repair.