TRANSPLANTATION FOR PRIMARY HYPEROXALURIA IN THE USA

US data were sought for transplantation in primary hyperoxaluria (PH). The USRDS recorded 194 patients since 1974. By lifetable analysis, survival was better for transplanted than for non-transplanted patients (P < 0.001), even after trimming data for age < 55 and end-stage renal disease since 1985 (63 patients, 39 transplanted, 24 not transplanted). Transplant survival was longer for living related donor (21) vs cadaveric (17) transplants. Twenty-nine kidney transplants in 22 children were registered in NAPRTCS. Interview data with physicians showed that eight of 17 living related donor kidneys functioned well, three were borderline and six were lost. All six cadaver kidneys were lost. Four of six kidney-liver transplants functioned, and two died. United Network for Organ Sharing recorded 13 kidney-liver transplants in 11 patients. Six initially functioned well; two were retransplanted. Ultimately seven lived and four died. Overall, transplant is better than no transplant; cadaver donation results are poor; living related kidney donation can succeed; and kidney-liver transplant is still problematic in the US, and rarely follows appropriate investigation. Until more cooperative effort can be achieved, isolated kidney living related donor transplant is preferable, and does not preclude kidney-liver transplant later.