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Evaluation of Antimicrobial Resistance of Acinetobacter baumannii to Imipenem, Ciporofloxacin and Ceftazidime using E Test

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Author(s): MA Boroumand | H Akhyani | M Sheikhvatan | S Hekmat Yazdi | R Saboorian | Sh Hashemi | F Firouzkouhi

Journal: Iranian Journal of Public Health
ISSN 2251-6085

Volume: 38;
Issue: 2;
Start page: 130;
Date: 2009;
Original page

Keywords: Acinetobacter | Antimicrobial susceptibility | E test | Imipenem | Ciprofloxacin

ABSTRACT
"nBackground: Resistance patterns among nosocomial bacterial pathogens in hospitals may vary widely from country to coun­try at any given point and within the same country over time. Acinetobacter baumannii is one of the most important bacte­rium causes hospital acquired infections. Therefore, surveillance of antibiotic resistance of A. baumannii is necessary, espe­cially in our country which there is no have much data in this field."nMethods: In a prospective study, strain comprised of a total of 191 recent clinical isolates selected consecutively from clini­cal infections of separate patients from three University hospitals in Tehran. Minimum inhibitory concentration (MIC) of these organisms for imipenem, ciprofloxacin and ceftazidime was determined using E test method according to CLSI guide­line. Also, MIC50 and MIC90 percent was calculated for each of these antibiotics."nResults: The percentages of Acinetobacter baumannii isolates susceptible to ciprofloxacin and ceftazidime by E test were 55.5% and 44.5%, respectively. The percentage of bacterium susceptible to imipenem by E test was 72.8%. MIC50 and MIC90 of imipenem in E test were 1.5 and >32, respectively."nConclusion: High antimicrobial resistance against A. baumannii species has been seen in Iran; therefore, it is necessary to imple­ment some approaches for prevention of bacterial spread.
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