Chapter 20 - Transplantation Flashcards
The process of combining donor lymphocytes and recipient serum to determine if there are preformed antibodies against the potential graft
Crossmatching (cytotoxicity assay)
Occurs immediately after transplantation (minutes to hours) due to preformed recipient antibodies that are present against the donor organ.
HYPERACUTE REJECTION
Type of rejection that occurs within the first week of transplant as a result of recipient T cells that are sensitized to donor antigens.
ACCELERATED REJECTION
Type of rejection that can occur > 1 week to anytime after transplantation
ACUTE REJECTION
Type of rejection that occurs usually months to years after transplantation.
CHRONIC REJECTION
2 ADRs of AZA
Bone marrow suppression
Hepatotoxicity
How many years after curative treatment of malignancy is recommended before kidney transplantation?
2 years
T or F: Hepatitis B and C virus with cirrhosis or acute hepatitis are not contraindication to kidney transplantation
False. Relative contraindication.
May opt for combined liver and kidney transplantation if candidacy for both is determined to be medically suitable
Organ transplantation from the same individual
Autograft
Organ transplantation from the same species but not genetically identical
Allograft
Organ transplantation from different species
Xenograft
Organ transplanted into its usual anatomic site (heart, lung, liver)
Orthotopic
Organ transplanted into a foreign site (kidney, pancreas)
Heterotopic
Preferred transplant site for kidney is in the
extraperitoneal iliac fossa
Most common malignancy in kidney transplant recipient
Skin cancer
Most common noncutaneous malignancy in kidney transplant recipients
Lymphoma (most often, B cell lymphoma caused by EBV)
The most common cholestatic disorder leading to liver transplantation in children.
Biliary atresia
The most frequent contraindication to liver transplantation
continuing substance abuse
Safe cold ischemic times for kidney
Up to 36–40 hours
Safe cold ischemic times for pancreas
Up to 24 hours
Safe cold ischemic times for liver
Up to 16 hours
Safe cold ischemic times for heart/lung
Up to 6 hours
Least frequently transplanted organ.
SMALL INTESTINE TRANSPLANTATION
Transplantation with highest rejection rate and lowest graft survival.
Small intestine