Which of the following are relative indications for mitral valve replacement, as opposed to mitral valve repair?

A. Extensive leaflet calcification.

DISCUSSION: Extensive mitral valve calcification is a relative indication for mitral valve replacement. Mitral regurgitation or significant annular dilatation may, however, be amenable to mitral valve repair. Chordal rupture of the anterior leaflet is generally reparable using chordal transposition or polytetrafluoroethylene (PTFE) chordae.