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    Epidemiology and antimicrobial susceptibility profiles of pathogens causing urinary tract infections in the Asia-Pacific region: Results from the Study for Monitoring Antimicrobial Resistance Trends (SMART), 2010-2013

    Access Status
    Fulltext not available
    Authors
    Jean, S.
    Coombs, Geoffrey
    Ling, T.
    Balaji, V.
    Rodrigues, C.
    Mikamo, H.
    Kim, M.
    Rajasekaram, D.
    Mendoza, M.
    Tan, T.
    Kiratisin, P.
    Ni, Y.
    Weinman, B.
    Xu, Y.
    Hsueh, P.
    Date
    2016
    Type
    Journal Article
    
    Metadata
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    Citation
    Jean, S. and Coombs, G. and Ling, T. and Balaji, V. and Rodrigues, C. and Mikamo, H. and Kim, M. et al. 2016. Epidemiology and antimicrobial susceptibility profiles of pathogens causing urinary tract infections in the Asia-Pacific region: Results from the Study for Monitoring Antimicrobial Resistance Trends (SMART), 2010-2013. International Journal of Antimicrobial Agents. 47 (4): pp. 328-334.
    Source Title
    International Journal of Antimicrobial Agents
    DOI
    10.1016/j.ijantimicag.2016.01.008
    ISSN
    0924-8579
    School
    School of Pharmacy and Biomedical Sciences
    URI
    http://hdl.handle.net/20.500.11937/67440
    Collection
    • Curtin Research Publications
    Abstract

    A total of 9599 isolates of Gram-negative bacteria (GNB) causing urinary tract infections (UTIs) were collected from 60 centres in 13 countries in the Asia-Pacific region from 2010-2013. These isolates comprised Enterobacteriaceae species (mainly Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Klebsiella oxytoca, Enterobacter cloacae and Morganella morganii) and non-fermentative GNB species (predominantly Pseudomonas aeruginosa and Acinetobacter baumannii). In vitro susceptibilities were determined by the agar dilution method and susceptibility profiles were determined using the minimum inhibitory concentration (MIC) interpretive breakpoints recommended by the Clinical and Laboratory Standards Institute in 2015. Production of extended-spectrum ß-lactamases (ESBLs) amongst E. coli, K. pneumoniae, P. mirabilis and K. oxytoca isolates was determined by the double-disk synergy test. China, Vietnam, India, Thailand and the Philippines had the highest rates of GNB species producing ESBLs and the highest rates of cephalosporin resistance. ESBL production and hospital-acquired infection (isolates obtained =48 h after admission) significantly compromised the susceptibility of isolates of E. coli and K. pneumoniae to ciprofloxacin, levofloxacin and most ß-lactams, with the exception of imipenem and ertapenem. However, > 87% of ESBL-producing E. coli strains were susceptible to amikacin and piperacillin/tazobactam, indicating that these antibiotics might be appropriate alternatives for treating UTIs due to ESBL-producing E. coli. Fluoroquinolones were shown to be inappropriate as empirical therapy for UTIs. Antibiotic resistance is a serious problem in the Asia-Pacific region. Therefore, continuous monitoring of evolutionary trends in the susceptibility profiles of GNB causing UTIs in Asia is crucial.

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