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Acid-base balance and electrolytes concentration in cerebrospinal fluid (CSF) of patients with bacterial and lymphocytic meningitis were assessed. Inflammatory process causing the damage of blood-brain barrier and brains hypoxia leads to statistically significant changes of pH, pO2, bicarbonates and K+ concentrations in CSF of patients with bacterial meningitis, which in lymphocytic meningitis were not observed. Patients with fatal; outcome of bacterial meningitis showed higher CSF's acidosis and lover bicarbonates with higher K+ concentrations, which suggest deeper damage of brain hemostasis regulating mechanisms in those patients.

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The presence of antigens of HB virus and excretion of antibodies against the compounds of this virus in the urine of patients with acute and chronic hepatitis B was shown by the use of precipitation of polyethylenic glycol 6000 (PEG) and the immunoenzymatic method. The main compound of precipitating complexes in PEG excreted with the urine is the HBe antigen detected in the urine of patients both with acute and chronic virus B hepatitis.

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A case of endogenous hepatic coma during acute virus hepatitis A is reported. Arterialization of portal blood gave a good result.

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Symptoms of endogenic hepatic coma were observed in the course of acute hepatitis in 17 patients admitted to the I Clinic of Infectious Diseases of Silesian Medical School between 1987 and 1992. Five of them were treated with the arterialization of portal blood. At least one exchange transfusion preceded the arterialization in four cases. Recovery was obtained in 3 patients. Two patients died because of complications which occurred during the twenty-four hours after the intervention. In the first case the reason of the death was the extensive myocardial infarction, in the second one-DIC and ARDS. As it has been observed, the prothrombin rate should not be lower than 30% in these patients who are to undergo the arterialization of portal blood. This value of the prothrombin rate is provided by at least one exchange transfusion.

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The aim of the study, was to evaluate the excretion of amylase, lysozyme and beta 2 microglobulin (B2-M) in patients with acute and chronic virus B hepatitis. The gathered findings show the maintained ability of tubules cells to reabsorption lysozyme and B2-M. The elevated excretion of amylase in the urine of patients with acute viral hepatitis show the transient decrease of abilities to absorb this enzyme by teh cells of the tubules. It may be caused by the saturation of the catabolic mechanism of the proteins in tubule cells as well as the decrease of their energetic abilities due to toxic activity of bilirubin and bile acids.

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The examination of 5-cholestasis indicating enzymes was carried out in patients with viral B hepatitis. The changes in activity of such enzymes: alkaline phosphatase, its liver isoenzyme, gamma glutamyltranspeptidase, 5'nucleotidase, leucine aminopeptidase and alanine aminopeptidase were estimated as for being useful in discovering the states of cholestasis. Already in the first week of observation all examined enzymes showed the highest level of activity, only in the case of FZ and FW, however the difference between the patients with and without cholestasis were markedly static. In the following weeks the differences in average activities between group with and without cholestasis were present in the case of 5'N and LAP. The activity of GGTP and AAP were high in both groups of patients. And so alkaline phosphatase is the enzyme which discovers the states of cholestasis in viral B hepatitis quickly and markedly.

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Properties differentiating 13 biochemical indexes of cholestasis within a group of patients suffering from acute virus hepatitis were examined. It has proved the existence of a set of parameters of optimal properties differentiating separate states of cholestasis. This set includes concentrations of bilirubin and cholesterol esters, together with the activity of alkaline phosphatase. The variables formed a function enabling to differentiate mathematically+ the states with and without cholestasis.

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Seventeen cases of the suppurative meningitis complicated by hearing loss have been analysed clinically. Emphasis is on the possibility of such a complication in any case of the suppurative infection of CNS. The authors have shown the necessity of otolaryngological examinations in each patient, basing on their own experience and available literature. An early diagnosis and appropriate treatment produces complete recover or decreases the degree of hearing loss being a complication of the suppurative neuroinfections.

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