5 years ago

Prevalence of and risk factors for symptomatic urinary tract infection after endoscopic incision for the treatment of ureterocele in children

Kimihiko Moriya, Nobuo Shinohara, Masafumi Kon, Takeya Kitta, Yukiko Kanno, Yoko Nishimura, Michiko Nakamura
Objective To clarify the impact of endoscopic incision (EI) for ureterocele as an initial procedure, by performing a retrospective chart review, focusing on the prevalence of and risk factors for symptomatic urinary tract infection (UTI) after EI. Materials and Methods In the present study we included children with ureterocele, managed between September 1994 and April 2016, who were observed conservatively without additional surgical management after EI. Ureterocele was categorized as intravesical or ectopic. Symptomatic UTI was defined as either recurrent non-febrile or febrile UTI. The prevalence of and risk factors for symptomatic UTI were analysed using Cox proportional hazard models or Kaplan–Meier curves, and the log-rank test. Results A total of 36 children met the inclusion criteria. The median age of the participants at EI was 8.9 months. Eleven children had symptomatic UTIs (febrile, n = 9; recurrent non-febrile, n = 2) during the median follow-up of 75.5 months. Initial symptomatic UTI in each child occurred <25 months after EI. The symptomatic UTI-free rate after EI was 65.6%. The risk factors for symptomatic UTI were female gender, duplex system, ectopic ureterocele, and unchanged hydronephrosis after EI. Conclusions The present study determined the critical period and risk factors for symptomatic UTI after EI for the treatment of ureterocele. The results suggest that when conservative management is indicated after EI, patients, especially those with risk factors, should be followed carefully at least for 25 months after EI for symptomatic UTI.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1111/bju.13884

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