Antibiotic Susceptibility of Clinical Isolates of Pseudomonas Aeruginosa
Ongoing surveillance of Pseudomonas aeruginosa resistance against antimicrobial agents is fundamental to monitor trends in its susceptibility patterns and to appropriately guide clinicians in choosing empirical or directed therapy. The current in vitro activity level of eight antimicrobial drugs...
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2011
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my.usim-41002012-12-14T07:26:52Z Antibiotic Susceptibility of Clinical Isolates of Pseudomonas Aeruginosa Siva Gowri Pathmanathan Drug Resistance, Microbial Ongoing surveillance of Pseudomonas aeruginosa resistance against antimicrobial agents is fundamental to monitor trends in its susceptibility patterns and to appropriately guide clinicians in choosing empirical or directed therapy. The current in vitro activity level of eight antimicrobial drugs was assessed against 97 clinical isolates of P. aeruginosa collected consecutively for three months in 2007 from a Malaysian hospital. Antimicrobial susceptibility was determined using the Etest method subsequent to the hospital's routine diagnostic testing by the disk diffusion method. Respiratory isolates, followed by wound swab isolates were the most frequently encountered. The Etest and disk diffusion methods showed high agreement in determining the in vitro activity of the antimicrobial agents on the P. aeruginosa isolates. Etest results showed piperacillin-tazobactam was the most active antimicrobial agent with 91.8% susceptibility, followed by the aminoglycosides (amikacin, 86.6% and gentamicin, 84.5%), the quinolone (ciprofloxacin, 83.5%) and the beta-lactams (cefepime, 80.4%, ceftazidime, 80.4%, imipenem, 79.4% and meropenem, 77.3%). Incidence of multidrug-resistance was 19.6% (19 out of 97 isolates). The higher resistance rate in general as compared to previous studies call for prudent use of antibiotics in order to limit further increase in resistance. Periodical surveillance of antibiotic resistance is fundamental to monitor changes in susceptibility patterns in a hospital setting. A standard definition of Pseudomonas aeruginosa multidrug resistance is crucially needed to allow better comparisons between studies. 2011-03-15T07:02:27Z 2011-03-15T07:02:27Z 2009 Research Report http://ddms.usim.edu.my/handle/123456789/4100 en Universiti Sains Islam Malaysia |
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Drug Resistance, Microbial Siva Gowri Pathmanathan Antibiotic Susceptibility of Clinical Isolates of Pseudomonas Aeruginosa |
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Ongoing surveillance of Pseudomonas aeruginosa resistance against
antimicrobial agents is fundamental to monitor trends in its susceptibility patterns and to
appropriately guide clinicians in choosing empirical or directed therapy. The current in
vitro activity level of eight antimicrobial drugs was assessed against 97 clinical isolates
of P. aeruginosa collected consecutively for three months in 2007 from a Malaysian
hospital. Antimicrobial susceptibility was determined using the Etest method
subsequent to the hospital's routine diagnostic testing by the disk diffusion method.
Respiratory isolates, followed by wound swab isolates were the most frequently
encountered. The Etest and disk diffusion methods showed high agreement in
determining the in vitro activity of the antimicrobial agents on the P. aeruginosa
isolates. Etest results showed piperacillin-tazobactam was the most active antimicrobial
agent with 91.8% susceptibility, followed by the aminoglycosides (amikacin, 86.6% and
gentamicin, 84.5%), the quinolone (ciprofloxacin, 83.5%) and the beta-lactams
(cefepime, 80.4%, ceftazidime, 80.4%, imipenem, 79.4% and meropenem, 77.3%).
Incidence of multidrug-resistance was 19.6% (19 out of 97 isolates). The higher
resistance rate in general as compared to previous studies call for prudent use of
antibiotics in order to limit further increase in resistance. Periodical surveillance of
antibiotic resistance is fundamental to monitor changes in susceptibility patterns in a
hospital setting. A standard definition of Pseudomonas aeruginosa multidrug resistance
is crucially needed to allow better comparisons between studies. |
format |
Research Report |
author |
Siva Gowri Pathmanathan |
author_facet |
Siva Gowri Pathmanathan |
author_sort |
Siva Gowri Pathmanathan |
title |
Antibiotic Susceptibility of Clinical Isolates of Pseudomonas Aeruginosa |
title_short |
Antibiotic Susceptibility of Clinical Isolates of Pseudomonas Aeruginosa |
title_full |
Antibiotic Susceptibility of Clinical Isolates of Pseudomonas Aeruginosa |
title_fullStr |
Antibiotic Susceptibility of Clinical Isolates of Pseudomonas Aeruginosa |
title_full_unstemmed |
Antibiotic Susceptibility of Clinical Isolates of Pseudomonas Aeruginosa |
title_sort |
antibiotic susceptibility of clinical isolates of pseudomonas aeruginosa |
publisher |
Universiti Sains Islam Malaysia |
publishDate |
2011 |
url |
http://ddms.usim.edu.my/handle/123456789/4100 |
_version_ |
1645151485742284800 |
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13.211869 |