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KMID : 0984720090410060333
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Infection and Chemotherapy
2009 Volume.41 No. 6 p.333 ~ p.341
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Risk Factors for Community-onset Urinary Tract Infections due to Extended-spectrum β-lactamase Producing Bacteria in Children
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Kim Nam-Hyo
Lee Teak-Jin
Kim Ji-Hee
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Abstract
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Background: Extended-spectrum β-lactamase (ESBL) producing bacteria have been increasingly recognized in the community. The aim of this study was to identify risk factors for community-onset urinary tract infections (UTIs) by ESBL producers in children.
Materials and Methods : We analyzed 854 episodes of community-onset UTIs in children diagnosed at CHA Bundang Medical Center from January, 2004 to April, 2009. The presence of ESBL in Escherichia coli and Klebsiella spp. was screened and confirmed by VITEK®-2 ESBL test. Controls were matched in a 2:1 ratio to case patients by age and sex. The clinical characteristics, risk factors, antimicrobial resistance, and treatment efficacy were compared with controls.
Results: The most common pathogen was Escherichia coli (681 isolates), followed by Klebsiella pneumoniae (60 isolates), Enterococcus faecalis (23 isolates), etc. The number of isolated ESBL producers among the pathogens E. coli and K. pneumoniae was 25 (3.7%) and 7 isolates (11.7%), respectively. No significant differences were noted as to the UTI history prior to the present treatment, underlying urogenital anomaly, and clinical characteristics. Use of any antibiotics within a month (P=0.012, Odds ratio, 6.341, 95% confidence interval, 1.492 to 26.955) was related to the increased risk of community-onset UTI by ESBL producers.
Conclusions: ESBL-producing bacteria has been identified in pediatric community-onset UTI, and the use of any antibiotics within the previous month was related to the increased risk of UTI by ESBL producers. Therefore, careful selection and use of antibiotics should be recommended for community-onset UTI in children.
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KEYWORD
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Extended-spectrum β-lactamase, Urinary tract infection, Children
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