Prediction of graft dysfunction by analysis of liver biopsies after cold storage. 
Failure of the hepatic allograft continues to be a serious life-threatening risk for the recipient.  Because no effective method of extracorporeal support is available for these patients, early retransplantation is the only alternative that offers the potential for survival.  The aim of this prospective analysis was to search for a predictor of primary non-function of hepatic allografts before reperfusion.  From March to June 1993 we investigated 19 liver biopsies which were obtained during the preparation of the donor liver in the back table bath immediately before the implantation of the organ.  All organs were preserved by UW solution.  Biopsies were stored at -80 degrees C, the working-up process was started by dividing the biopsy into several portions for the determination of fat (petrol-ether extraction), water (weighing before thawing and after drying) and free amino acids (OPA-HPLC method).  Graft function was categorized into three groups: (1) good function; (2) fair function; (3) primary non-function (PNF).  In addition to known risk factors for delayed graft function such as a long stay of the donor in intensive care and a prolonged anhepatic period of the recipient, we were able to demonstrate that organs with malfunction had a higher fat and water content.  Donor livers developing PNF showed a trend towards higher total and subdivided amino acids, which could be explained by the incapacity of the liver to utilize available substrates for gluconeogenesis.