[The determination of number and differentiation of excreted leukocytes in relation to acuity, course and prognosis of inflammatory urinary tract infections].

The intention was to determine the diagnostic and prognostic value of differentiating between the cells excreted in the urine. Midstream morning urine specimens of children with untreated urinary tract infection (group AO), with recurrent urinary tract infection in the symptom-free period (group D), of healthy girls (group CW), healthy boys (group CM), of children with acute infections other than urinary tract infections (group B) and with acute urinary tract infections after 8 days of antibiotic therapy (group A8) were examined for number of leucocytes and proportion of granulocytes (PMNL) in percent. There were significant differences in leucocyte numbers between groups D, CW and A8 on the one hand and CM and B on the other The granulocytes percentages differed significantly between AO, D and CW, CM, A8. The study provides essential data for assessing acuity, course and prognosis of urinary tract infection.