[Acute kidney failure associated with the HELLP syndrome. A case report].

A patient with 36 weeks' gestation with severe preeclampsia and HELLP syndrome associated to acute renal failure, was studied. Symptomatology, abnormal laboratories results and treatment, are emphasized. The haptoglobin level has been reported like sensitive marker of moderate hemolysis; it could permit an early diagnosis of HELLP syndrome. On the basis at physiopathology mechanism that were described, HELLP syndrome is susceptible of prevention in patients with high risk.