Defects of the low urinary tract as a cause of recurrent urinary tract infection in girls

462 girls aged 1 month--15 years with recurrent urinary tract infection were diagnosed in the Outpatient Clinic of Mother and Child Institute during 1985-1992 and 1999-2000 years period. The most common cause of recurrent urinary tract infection was an isolated construction of external urethral ostium--59.9% (187/312) then vesico-ureteral reflux coexisting with external urethral ostium--41.1% (125/312), next isolate vesico-ureteral reflux--22.5% (104/462). Typical radiological diagnostic was performed in all cases and calibration of urethrae was 416 girls. From 75% (312/416) cases with urethral construction only 54.7% (253/462) had typical cystographic picture of that defect. Results of our studies confirmed the importance of exact diagnosis of "lower part of urinary tract" and necessity of appropriate treatment.