transplants clinical correlation Flashcards
first organ to be transplanted
kidney in 1936
function of UNOS
oversees and makes policies for transplantation in US
function of SRTR
tacks transplant outcomes
function of CMS
major payor for kidney transplants
certifies programs, provides oversight
what are reasons why pts may have anti-HLA antibodies? (3)
previous pregnancies, transfusions, other transplants
2 m/c indications for adult liver transplant
etOH, HCV
what are the biochemical markers to assess for need of liver transplant?
bili level
albumin level
INR
what is the MELD score?
used in liver transplant work-up
“medical urgency status”
bili, INR, Cr
best liver tx outcomes? worst?
best- cholestatic or metabolic etiology
worst- malignant
what are the most clinically important HLAs in terms of transplantation?
HLA-A
HLA-B
HLA-DR
phases of immunosuppression (3)
desensitization
induction
maintenance
goal of desensitization, meds
goal= reduce pre-formed antibodies
tx: plasma exchange/IVIG, rituximab, bortiezomib
goal of induction, meds
goal= reduce risk of early rejection
tx: steroids, thymoglobulin, alemtuzumab (anti-CD25)
rituximab
anti-CD20 (b cell)
bortiezomib
protease inhibitor for plasma cells
alemtuzumab
anti-CD25 (high affinity IL-2 receptor)
belatacept
costimulation blocker- blocks CD28 from binding B7 = T cells cannot be activated by APCs
in which transplanted organ is there screening for donor specific antibodies?
kidney
factors that make a pt high risk for rejection
- poor HLA matching
- deceased donor
- prolonged cold ischemia time
- previous transplant
- donor specific antibody
- high panel reactive antibody
- african american
clinical picture of post-transplant lymphoproliferative disease (4)
acute EBV infection (mono)
single or multiple tumors
allograft dysfunction
fulminant disease
which malignancies are NOT assoc with increased risk after transplant?
colon, prostate, breast
which organ has longest wait?
kidney
1* means of organ recovery
death by neurologic disease
1* means of tissue recovery
death by cardiopulmonary disease