Behandlung des akuten Leberversagens durch Plasmapherese*

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Abstract
Repeated plasmaphereses were done in 7 patients with acute hepatic failure (5 of them with coma stage IV and two with stage III). Acute liver insufficiency was induced by fulminant viral hepatitis in 4 cases, by drugs in one case, and was caused by a dystrophic exacerbation of liver cirrhosis in two further cases. Four of the 7 treated patients have survived. Beginning improvement of hepatic function was evidenced by an increase of factor VII and prothrombin in plasma. Significant lowering of bilirubin could be observed in all cases. While ammonia values decreased continuously in the four successfully treated patients while on plasmapheresis, the opposite behaviour was observed in the decreased patients. The influence of plasmapheresis on the pathologically altered aminoacid pattern in hepatic coma was investigated in two patients: Before treatment clearly to excessively increased values of methionine and aromatic aminoacids (phenylalanine and tyrosine) were seen. Branched-chain aminoacids leucine, isoleucine and valine were normal to moderately decreased. After termination of plasmapheresis methionine and aromatic aminoacids were significantly lower, branched-chain aminoacids were slightly below the initial values. Improvement of consciousness correlated with increase of the quotient (val+leu+ile)/(phe+tyr).

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