Resumo

BRITO, Hernâni et al. Urinary tract infection: etiological agents and local resistance patterns. Nascer e Crescer [online]. 2012, vol.21, n.4, pp.222-225. ISSN 0872-0754.

Introduction: Urinary tract infection is a common condition in children. The antibiotic therapy should be initiated empirically before the isolation of the causative agent. The drugs used should take account of the microorganisms and the pattern of local resistance. Objectives: Identification of the etiologic agents of urinary tract infection and their antibiotic resistance patterns in our hospital. Methods: Retrospective analysis of the results of urine cultures performed on children in a tertiary hospital between January 2009 and June 2010. Results: 257 urine cultures corresponding to 176 patients (68% ♀) were analyzed. The median age was 4 years. The agents most common were E. coli (55%), P. mirabilis (16%) and Klebsiella (14%). Antibiotic resistance was: 59% ampicillin, 18% amoxicillin / clavulanate, 22% cefuroxime and cefaclor, 37% cotrimoxazol, 26% nitrofurantoin and less than 10% for ceftriaxone, ceftazidime, and gentamicin. Conclusions: Antibiotic resistance has increased and it’s a worrying aspect. Among the drugs commonly used to treatment beyond three months, amoxicillin / clavulanate and cefuroxime, resistance pattern is similar, so the use of amoxicillin clavulanate as the first option remains a good therapeutic option.

Palavras-chave : urinary infection; microorganisms; antibiotic resistance.

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