[Analysis of ischemic lesions of the liver after various periods of warm and cold ischemia].

Liver and sinusoidal wall cells become swollen very fast due to ischemia in liver allograft, with Eurocollins preservation solution. This process consequently narrows the sinusoidal lumen and significantly disturbs the "functional structure" of Rapaport microcirculation units. Advanced changes on "functional structure" microcirculation liver units can cause outflow block phenomenon of the liver and a consequential primary graft dysfunction. In order to avoid this unfavorable consequence of transplantation, it is necessary to assess the potential allograft vitality in advance. The assessment can be based on measuring values of sinusoidal volume, increase of the serum glutaminpyruvic transaminaze (SGPT) level per mass unit of liver tissue in the preservation solution and increase of necrotizing hepatocytes' number in liver lobules. During the first 8 hours of cold ischemia these values do not change significantly, so we can conclude that in this interval of cold ischemia liver is suitable for transplantation, which is not the case with warm ischemia where changes occur much earlier. Practically, the intensity of lesions with 4 hour period of warm ischemia equals the intensity of lesions with 16 hour period of cold ischemia.