[Spontaneous rupture of renal allografts (author's transl)].

Spontaneous rupture of an allografted kidney is not such a rare complication of kidney transplantation. In our series 5.2% of the transplanted kidneys ruptured spontaneously. The condition is an acute emergency characterized by the triad, acute abdomen, swelling in the region of the transplant and haemorrhagic shock. The aetiology of transplant rupture seems to be multifactorial, but the superimposition of an acute rejection episode on ischaemic tubular damage with acute renal failure was found to be the most important combination of events leading to transplant rupture in our patients. Exceptionally precise immunological monitoring in the early phases following transplantation and early aggressive therapy of an acute rejection crisis associated with acute renal failure should prevent allograft rupture.