Partial atrioventricular canal in an adult: mitral valve repair by reverse implantation of a Carpentier ring

A severely incompetent mitral valve of partial atrioventricular canal type was repaired by reverse implantation of a Carpentier ring. The flat segment of the ring was adapted to the lateral leaflet of the valve and the curved segment to the combined left superior and left inferior leaflets. The so-called cleft was sutured. The procedure resulted in a fully competent mitral valve that continues to be competent 2 years after the operation.