Antibiotic Susceptibility Patterns of Extended Spectrum beta-lactamase and non Extended Spectrum beta-lactamase Pseudomonas aeruginosa Clinical Isolates

Author(s): Mostafa Akbariqomi, Sobhan Ghafourian, Morovat Taherikalani, Satar Mohammadi, Iraj Pakzad, Nourkhoda Sadeghifard.

Journal Name: Recent Patents on Anti-Infective Drug Discovery

Volume 10 , Issue 2 , 2015

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Background: Pseudomonas aeruginosa is known as an opportunistic pathogen responsible for nosocomial infections. Multidrug (MDR) resistance bacteria are considered as a worldwide issue. The current research goal to investigate the antibiotic susceptibility pattern in Extended Spectrum beta-lactamase and non Extended Spectrum beta-lactamase producing P. aeruginosa clinical isolates. Methods: A total of 76 P.aeruginosa clinical isolates were collected from Milad hospital in Tehran, Iran, during 8 months period in 2012. P.aeruginosa clinical isolates were subjected for ESBL production by phenotypic methods. The antibiotic susceptibility patterns were identified in ESBL and non-ESBL P. aeruginosa by MIC. Results: our results demonstrated that 76.3% (n =58) isolates were resistant to more than three antibiotics and classified as MDR. The majority of MDR strains were found in ESBL producer P. aeruginosa. ceftazidim as 3rd generation of cephalosporins, ciprofloxacin, Ticarcillin and aztreonam were found as a base for definition of MDR in the current research. The effectiveness antibiotics against ESBL and non-ESBL were meropenem and amikacin, respectively. Conclusion: based on our knowledge obtained from results, both ESBL and non-ESBL P. aeruginosa were resistant to extended antibiotics and this is a major health care problem. On the other hand, MDR strains more identified in ESBL producer P .a eruginosa. Also, carabapenem resistance observed in non-ESBL producer strains. Hence, it is recommended that the MDR strains should be following up. the prescription of ceftazidim, ciprofloxacin, Ticarcillin and aztreonam should be limited.

Keywords: ESBL, Pseudomonas aeruginosa, MIC, multi drug resistance.

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Article Details

Year: 2015
Page: [128 - 133]
Pages: 6
DOI: 10.2174/1574891X10666150901111312
Price: $58

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