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  • Title: Rise of community-onset urinary tract infection caused by extended-spectrum β-lactamase-producing Escherichia coli in children.
    Author: Fan NC, Chen HH, Chen CL, Ou LS, Lin TY, Tsai MH, Chiu CH.
    Journal: J Microbiol Immunol Infect; 2014 Oct; 47(5):399-405. PubMed ID: 23834784.
    Abstract:
    BACKGROUND: Urinary tract infection (UTI) caused by resistant bacteria is becoming more prevalent. Few studies are available regarding community-onset UTIs caused by extended-spectrum β-lactamase (ESBL)-producing bacteria in children. MATERIALS AND METHODS: During a 5-year period, hospitalized children with community-onset UTI caused by ESBL-producing Escherichia coli (case) and those with non-ESBL-producing E. coli (control) were identified. Patients with long-term care facility stay within the preceding month and those with urine cultures obtained >72 hours after admission were excluded. Clinical features and risk factors associated with the occurrence of ESBL-producing E. coli UTI were reviewed. RESULTS: The prevalence of UTI due to ESBL-producing E. coli increased slightly from 0.59% in 2002 to 0.96% in 2006. A total of 104 cases and 208 controls were included for comparison. The ciprofloxacin resistance of the ESBL-producing E. coli increased significantly in this period (p = 0.006). Pre-existing neurological diseases (p < 0.001), use of antibiotics in the past 3 months (p < 0.001), and recent hospitalization within 1 month (p < 0.001) were found to be potential risk factors. Moreover, previous exposure to third-generation cephalosporins (p < 0.001) and aminoglycosides (p < 0.001) was associated with the selection of ESBL-producing E. coli. Children with ESBL-producing E. coli UTIs had a longer hospital stay (p = 0.031) than those without. CONCLUSIONS: ESBL-producing E. coli gradually became coresistant to other broad-spectrum antibiotics, notably ciprofloxacin. UTIs caused by such resistant organisms led to a longer hospital stay and more antibiotic use. Reinforcement of infection control measures, especially hand washing in childcare settings and antibiotic stewardship, is critical to reduce the spread of ESBL-producing E. coli.
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