Cf. Sintek et al., MITRAL-VALVE REPLACEMENT - TECHNIQUE TO PRESERVE THE SUBVALVULAR APPARATUS, The Annals of thoracic surgery, 59(4), 1995, pp. 1027-1029
A technique is described for retaining the entire subvalvular apparatu
s in an anatomic fashion during mitral valve replacement that has resu
lted in no ventricular outflow tract obstruction or interference by re
tained chordal structures with prosthetic valve function in 128 patien
ts.