Organ Transplantation Flashcards
Single absolute contraindication to organ donation
Positive HIV status
Vascular thrombosis to new organ in minutes
Cause?
Prevention?
Hyperacute rejection
Preformed antibodies
ABO matching, lymphocytotoxic crossmatch
> 5 days and <3 months
Signs of organ dysfunction
Dx Tx
Acute rejection
Biopsy
Steroid boluses, anti-lymphocytic agents (OKT3)
Approach to suspected acute liver rejection
R/o biliary obstruction by ultrasound
R/o vascular thrombosis by Doppler
Approach to suspected acute heart rejection
No effective therapy
Routine ventricular biopsies are performed to predict rejection
Years after transplant
Gradual loss of organ function
Dx Tx
Chronic rejection
Biopsy
No treatment unless it is delayed acute rejection