[Mitral valve replacement with preservation of mitral valve device].

40 patients underwent mitral valve replacement with preservation of the posterior leaflet, chordae tendineae and papillary muscles. Twelve of the patients had double valve replacement and 10 tricuspid annuloplasty in combination with valve replacement. The incidence of postoperative low cardiac output syndrome was low. LADD was significantly decreased and EF was slightly lowered postoperatively. A new surgical technique and its indications were concisely described.