Ureteric necrosis after kidney transplantation.

Uretero-cystostomy was used as reconstructive procedure in 298 cadaver kidney transplantations. Necrosis of the graft ureter occured in 10 cases (3.4%). 2 of these graft ureters had malformations and 1 was denuded at donor nephrectomy. The occurrence of ureteral necrosis was not related to histocompatibility or number of rejection crises nor to the duration of the warm ischemia. A higher incidence of ureteral necrosis after long cold ischemia is demonstrated, but the material is too small to permit conclusive evidence on this point.