susceptibility trends and molecular characterization of gram-negative bacilli associated with urinary tract and intra-abdominal infections in jordan and lebanon: smart 2011–2013
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2015
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Abstract
Objectives: To investigate phenotypic and genotypic patterns of antimicrobial resistance among Gram-negative bacilli associated with urinary tract infection (UTI) and intra-abdominal infection (IAI) in medical centres of Jordan and Lebanon.
Methods: Gram-negative bacilli from the SMART study, collected between the years 2011 and 2013, were first identified at local laboratories. These isolates were shipped to a central laboratory where re-identification, susceptibility testing, and molecular characterization were performed using standard methods.
Results: Among the 523 UTI-associated isolates, Escherichia coli, Klebsiella pneumoniae, and Proteus mirabilis were the most frequent (70%, 14%, and 5%, respectively). E. coli, K. pneumoniae, and Pseudomonas aeruginosa were the most frequent species among the 527 IAI-associated isolates (46%, 14%, and 12%, respectively). Incidence rates of extended-spectrum beta-lactamase (ESBL) producers among UTI-associated E. coli, K. pneumoniae, and P. mirabilis were 43%, 54%, and 4%, respectively. Corresponding rates among IAI-associated isolates were 49%, 56%, and 12%, respectively. Acinetobacter baumannii and P. aeruginosa isolates showed very disturbing low susceptibility patterns. CTX-M-15 was the most prevalent ESBL produced. Seventeen isolates were non-susceptible to carbapenems (estimated prevalence of 1.6%).
Conclusions: The alarmingly high rates of ESBL production and emergence of carbapenemases emphasize the urgent need to develop antimicrobial stewardship initiatives and to maintain antimicrobial resistance surveillance systems.
| Reference Key |
hayajneh2015internationalsusceptibility
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| Authors | ;Wail A. Hayajneh;Aline Hajj;Fawzi Hulliel;Dolla Karam Sarkis;Noha Irani-Hakimeh;Lama Kazan;Robert E. Badal |
| Journal | israel journal of chemistry |
| Year | 2015 |
| DOI |
10.1016/j.ijid.2015.04.011
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