OBJECTIVES: to determine the frequency of recurrent urinary tract infection (UTI) and to evaluate the factors associated to UTI recurrence in children. METHODS: retrospective study of 95 patients with one year follow-up (68 girls and 27 boys, median of age three years old). The variables studied were: sex, age, fever, constipation, bacteria specimen, vesico-ureteral reflux (VUR), abnormalities of renal Dimercaptosuccinic acid (DMSA) scintigraphy. RESULTS: Recurrent UTI occurred in 49.5% children (19 with normal urinary tract, 19 with VUR and 9 with stenosis of the ureteropelvic junction ). Comparing data of the group with recurrent UTI and the group without recurrent UTI the following was determined: there were no significant differences between sexes, presence of fever, constipation and abnormalities in renal DMSA scintigraphy. Recurrent UTI was significantly higher in symptomatic children < 1 year old, of those with < 2 years old, with VUR, with bacteria other than Escherichia coli and the ones not receiving antibacterial prophylaxis. Risk factors for UTI recurrence were age < 2 years old (Odds ratio = 3.83) and vesicoureteral reflux-(Odds ratio = 4.95). CONCLUSIONS: due to the high recurrent UTI frequency the regular follow-up of children with risk factor for recurrent UTI is essential.
Child; Recurrent urinary tract infection; Risk factors
