Simplified technique for determining the length of artificial chordae in mitral valve repair.

Artificial chordal replacement using polytetrafluoroethylene sutures has become an established component in the technique for mitral valve replacement with good long-term results. Although various techniques have been described to determine the length of the artificial chordae, this has remained somewhat problematic. A neo-chordae that is too short will, in effect, result in a restricted leaflet movement. A neo-chordae that is too long will be ineffective in controlling leaflet prolapse.