bioprosthetic valve

(redirected from xenograft valve)

bioprosthetic valve

An implanted device of non-synthetic origin designed to replace a defective heart valve. Porcine bioprosthetic valves are less thrombogenic than mechanical valves, but are more prone to structural degeneration, limiting their durability (35% fail within 15 years).

bioprosthetic valve

Surgery An implanted device of nonsynthetic origin designed to replace a defective heart valve; porcine BV, are less thrombogenic than mechanical valves, but are more prone to structural degeneration, limiting their durability. See Heart-valve prosthesis.
References in periodicals archive ?
LifeCell's technology for processing xenograft valves may potentially solve the problem of calcification, or tissue hardening, thereby extending the life of valve implants.