Prosthesis, usually heart valve, composed of biological material and whose durability depends upon the stability of the material after pretreatment, rather than regeneration by host cell ingrowth. Durability is achieved 1, mechanically by the interposition of a cloth, usually polytetrafluoroethylene, between the host and the graft, and 2, chemically by stabilization of the tissue by intermolecular linking, usually with glutaraldehyde, after removal of antigenic components, or the use of reconstituted and restructured biopolymers.

Annotation

coordinate IM with specific prosthetic term (IM) as BIOPROSTHESIS + HEART VALVE PROSTHESIS; do not specify source of biological material unless especially discussed & do not coordinate with TRANSPLANTATION, HETEROLOGOUS

DUI

D001705 MeSH Browser

CUI

M0002554

Previous indexing

Heart Valve Prosthesis (1966-1978)

History note

79

Public note

79