Transplant Flashcards
What are the risks for re-transplant allograft failure?
Prior allograft failure
Nephrectomy of allograft
Past pregnancy
How can a calcineurin inhibitor result in hyperkalemia?
CNIs activate the Na/Cl co-transporter in the DCT resulting in less distal sodium delivery to ENaC
What drugs can result in increased levels of tacrolimus?
Azoles
Diltiazem
Ritonavir
Grapefruit juice
What drugs can result in decreased levels of tacrolimus?
Rifampin
Carbamazepine
St. John’s Wort
Immunosuppressant associated with skin tags?
Azathioprine
Immunosuppressant associated with decreased risk of squamous cell recurrence?
mTORi
Alternative to MMF with less GI side effects?
Mycophenolic acid
Immunosuppressant associated with alopecia and tremors?
Tacrolimus
Immunosuppressant associated with hirsuitism and gingival hyperplasia?
Cyclosporine
Immunosuppressant associated with delayed wound healing?
Everolimus/sirolimus
What are the standard prophylaxis agents used in post-transplant period?
Fluconazole (1 month)
TMPSMX (6 months)
Valganciclovir (3 months/6 months)
What is the treatment for acute cellular rejection?
Borderline: PO pulse steroids
ACR 1A: IV pulse steroids
ACR 1B+: IV pulse steroids + antithymocyte globulin
What is the treatment for acute antibody mediated rejection?
PLEX x 3
IVIG + steroids
Rituximab (if lots of DSA)
How do you diagnose acute antibody mediated rejection?
(@ least 2):
1) Peritubular capillaritis
2) C4d staining in peritubular capillaries
3) DSA +
How do you desensitize prior to transplant in those with high Panel Reactive Antibody %?
PLEX
Which immunosuppresant class can cause in proteinuria?
mTORi
What are absolute contraindications for renal transplantation?
Active malignancy
Prostate cancer within 2 years
Breast/Melanoma/Myeloma within 5 years
BMI > 40
Belatacept should be avoided in patients with exposure to what infection?
EBV
CrCl cutoff for kidney transplant donor?
80
Transplanted patients with ESKD from Alport’s disease are at risk for allograft dysfunction from what condition?
Anti-GBM Ab disease
Recurrent FSGS usually occurs within what time frame?
First 12 months post-transplantation
What is the pathophysiology and treatment for cytokine release syndrome secondary to ATG exposure?
Elevated IL6
Tocilizumab
Cyclosporine can _____________ mycophenolic acid levels?
lower