2017 Volume 30 Issue 1 Pages 30-34
It is reported that recurrence of urinary tract infection (UTI) may contribute to renal scarring. Though previous studies have evaluated risk factors of recurrent UTI, the risk factors were unclear. In this study, we investigated the risk factors of UTI in children according to a multicenter study of UTI cases. From April 2004 to March 2013, the initial febrile UTI patients admitted to St. Marianna University School of Medicine Hospital, Showa University Fujigaoka Hospital and Showa University Northern Yokohama Hospital were studied. Seventy two patients who could be followed over 6 months and were not administrated prophylactic antibiotics were enrolled in this study. The patients were divided into two groups with the recurrent and non-recurrent group. In these 72 patients, there were no significant differences in sex and age between the two groups. The numbers of UTI caused with non-E.coli in the recurrent group was significantly higher than the non-recurrent group (p<0.01). Futhermore, the numbers of high grade hydronephrosis and existence of vesicoureteral reflux (VUR) in the recurrent group were significantly higher than the non-recurrent group (p<0.01). This study suggests that the risk factors of recurrent UTI in children may be concerned with non-E.coli infection, high grade hydronephrosis and VUR.
