from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See allograft.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An allograft
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. tissue or organ transplanted from a donor of the same species but different genetic makeup; recipient's immune system must be suppressed to prevent rejection of the graft
Another option includes the surgical placement of a valve called a pulmonary homograft, which is a donated pulmonary valve and artery.
The child's own pulmonary valve and base of the pulmonary artery (autograft) replace the defective aorta, while a homograft (blood vessel from a tissue donor) replaces the pulmonary valve and base of the pulmonary artery.
Unfortunately the stent became infected and definitive open surgical repair involved removing the stent, replacing the aorta with a homograft and coverage with a left trapezius flap while under deep hypothermic arrest.
According to Dr. Grossman, "Captain Greene underwent debridement surgery [which is the removal of dead tissue] and a homograft procedure [which is the use of cadaver skin to act as a biological dressing] to both right and left hands" on Tuesday morning.
"Irradiated homograft cartilage grafts should be considered as an alternative or even a primary grafting material when the patient does not have adequate quantities of septal or auricular [ear] cartilage remaining to provide the correction or when the shape or quality of such an autologous cartilage does not adequately provide the structure required."
"… Emily received a human homograft valve that was taken from the heart of a baby that had passed away," Frank said.