[A new classification of urinary tract infection in children (author's transl)].

A classification of urinary tract infection based on severity of infection is presented. It is based primarily on the presence or absence of symptoms of urinary tract infection. The symptomatic infections are subdivided according to results of certain blood tests indicating general infection or not. Grade 1 covers asymptomatic bacteriuria, and grade 2 symptomatic infections with no signs of general infections. Grade 3 comprises symptomatic urinary tract infections with changes indicative of general infection. Elevated ESR and leucocytosis of the blood were regarded as criteria of general infection.