P. Stassano et al., BIOPROSTHESIS REPLACEMENT WITH MECHANICAL VALVE IMPLANTATION ON THE BIOPROSTHETIC RING - SURGICAL AND 2D-ECHO CONSIDERATIONS, European journal of cardio-thoracic surgery, 7(10), 1993, pp. 507-510
Removal of a failing bioprosthesis can be a delicate operation and ext
ensive damage can be caused. Eighteen patients with failing bioprosthe
ses underwent excision of the leaflets, then the ''new'' mechanical va
lve was sewn onto the ''old'' bioprosthetic ring. At follow-up, clinic
al and 2D color-flow echo-Doppler evaluations showed good hemodynamic
performance of the mechanical valves.