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2014, Cilt 44, Sayı 4, Sayfa(lar) 132-138
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The Antibiotic Susceptibility Profile of Acinetobacter baumannii and Pseudomonas aeruginosa Strains Isolated from the Blood Cultures (2012-2014)
Şule ÇOLAKOĞLU1, Hikmet Eda ALIŞKAN1, Jülide Sedef GÖÇMEN2
1Başkent Üniversitesi Tıp Fakültesi, Tıbbi Mikrobiyoloji Anabilim Dalı, Ankara
2Başkent Üniversitesi Tıp Fakültesi, Adana Uygulama ve Araştırma Merkezi, Mikrobiyoloji Laboratuvarı, Adana
Keywords: Acinetobacter baumannii, antibiotic resistance, Pseudomonas aeruginosa

Objective: Pseudomonas aeruginosa and Acinetobacter baumannii are the most prevalent nonfermentative bacterial species isolated from clinical specimens of hospitalized patients. In this study, we evaluated the antibiotic susceptibility profile of P. aeruginosa and A. baumannii isolates in the microbiology laboratory of Baskent University Adana Research and Practice Center, Turkey between February 16 and December 31, 2014.

Material and Methods: Blood samples included in this study were incubated in BACTEC 9240 system (BioMeriéux, France). The identification of the microorganisms was performed with conventional methods and the antibiotic susceptibilities were determined by the Kirby-Bauer disk diffusion method according to the standards of Clinical Laboratory Standards Institute. Pearson Chi-square test was used for statistical analysis.

Results: In our study, the antibiotic susceptibility rates of A. baumannii isolates were 31.9% for amikacin, 25.9% for gentamicin, 11.1% for ampicillin/sulbactam, 22.2% for cefoperazon/sulbactam, 17.8% for piperacillin/tazobactam, 20% for imipenem, 17.7% for meropenem, 17% for ciprofloxacin, 17.8% for levofloxacin, 17.8% for cefepime, 4.4% for cefotaxime and 13.3% for ceftazidime. The antibiotic susceptibility rates of P aeruginosa isolates were 98.3% for amikacin, 96.6% for gentamicin, 94.8% for piperacillin/tazobactam, 87.9% for cefoperazon/sulbactam, 93.1% for imipenem and meropenem, 91.4% for ciprofloxacin and levofloxacin, 96.6% for cefepime and 98.3 for ceftazidime.

Conclusion: The results of our study demonstrated that A. baumannii strains isolated from blood cultures showed multi-drug resistance and the antibiotic resistance rates of P. aeruginosa strains were very low between 2012 and 2014 in our hospital.


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