Surgical application for a prolapse of the anterior mitral leaflet by replacing artificial chordae with polytetrafluoroethylene grafts.

Purpose There are an increasing number of reports concerning mitral valve repair by a reconstruction of the chordae tendinae using expanded polytetrafluoro-ethylene (PTFE) sutures. However, little information is available about extended application or results of this technique for an extended prolapse of the anterior mitral leaflets.