Atypical relapse of hemolytic uremic syndrome after transplantation.
Atypical hemolytic uremic syndrome (HUS) frequently leads to end-stage renal failure and can relapse after transplantation. A 12-year-old girl presenting with familial atypical HUS with a factor H mutation was successfully transplanted 6 years after a first transplant that had failed because of immediate recurrent HUS. Prophylactic plasma exchange before and after transplantation was used. Two months after transplantation, concomitant with a reduction in plasma exchange frequency, the plasma creatinine increased from 70 micro mol/l to 194 micro mol/l in 2 weeks without thrombocytopenia or signs of hemolytic anemia. The patient had minimal clinical symptoms and a presumptive diagnosis of graft rejection was made. Despite treatment with six daily pulses of methylprednisolone, plasma creatinine continued to increase and a graft biopsy was therefore undertaken. This showed the typical appearance of a thrombotic microangiopathy without any evidence of rejection. Despite daily plasmapheresis and replacement of cyclosporine with tacrolimus, there was no improvement and transplant nephrectomy was undertaken. This patient demonstrates that HUS can recur in a kidney transplant without the diagnostic hematological features and emphasizes the need for early transplant biopsy in such patients showing a decline in transplant function.
Olie
Karolien H
KH
Pediatric Nephrology Unit, Emma Children's Hospital, Academic Medical Center, Amsterdam, The Netherlands.
Florquin
Sandrine
S
Groothoff
Jaap W
JW
Verlaak
René
R
Strain
Lisa
L
Goodship
Timothy H J
TH
Weening
Jan J
JJ
Davin
Jean-Claude
JC
D002648:Child; D005260:Female; D006084:Graft Rejection / Q000209:etiology*; D006463:Hemolytic-Uremic Syndrome / Q000150:complications* / Q000601:surgery* / Q000628:therapy; D006801:Humans; D016030:Kidney Transplantation / Q000009:adverse effects*; D010951:Plasma Exchange; D012008:Recurrence; D012086:Reoperation; D017211:Treatment Failure