[Valvuloplasty for acute mitral insufficiency caused by torn chordae (Carpentier method): report of a case].

A 66-year-old female was admitted to our hospital with acute heart failure (NYHA III), and diagnosed as an MR + Tr. The cause of MR was torn chordae of the posterior leaflet of the mitral valve. A prolapse part of the posterior leaflet was resected and sutured by McGoon's method. Valvuloplasty was performed by using a Carpentier ring. Postoperative course was uneventful. She recovered well after the operation. Histological examination of the valve showed myxomatous degeneration.