1143-140 Reoperative valve replacement with the St. Jude medical valve prosthesis: Long-term follow-up

Surgical Valve Replacement (Bioprosthetic vs. Mechanical)

“…The most common reasons for reimplantation are pre-and postoperative endocarditis, paravalvular leak and valve thrombosis. [17] Bioprosthetic valves are not as durable, have a shorter lifespan and are more susceptible to calcification than human and mechanical valves. [13] Bioprostheses have a significantly higher rate of reoperation due to structural valve deterioration.…”

“…In large series, freedom from reoperation is > 90% at 10 years, but < 70 % at 15 years. [17,18,19] There is an important predisposition for premature bioprosthetic structural valve deterioration in younger patients, especially those under the age of 40 years. [17] Nonstructural dysfunction -Any abnormality that is not intrinsic to the valve per se, which causes stenosis or regurgitation.…”

“…[17,18,19] There is an important predisposition for premature bioprosthetic structural valve deterioration in younger patients, especially those under the age of 40 years. [17] Nonstructural dysfunction -Any abnormality that is not intrinsic to the valve per se, which causes stenosis or regurgitation. Examples for this include entrapment of pannus, tissue or suture; paravalvular leak; inappropriate sizing or positioning; residual leak and clinically important hemolytic anemia.…”