The clinical course of 12 patients with mushroom poisoning was evaluat
ed in order to define the parameters considered to be relevant to the
indication for liver transplantation. Eight patients recovered under c
onservative therapy; one patient died due to pre-existing, concomitant
cardiopulmonary disease. In three patients transplantations had to be
performed because of severe liver failure. On admission, the transpla
nted patients had a decreased Quick's test score and factor V value (<
10 %). The peak of liver enzymes, serum bilirubin, serum creatinine,
partial thromboplastin time and azotemia were not of any prognostic va
lue. Main indications for liver transplantation were a very low initia
l Quick's test score and factor V value (both < 10 %) and their inadeq
uate response under substitution therapy. The development of encephalo
pathy and renal failure were further parameters indicating poor progno
sis.