The rapid detection of cefotaxime-resistant by HPLC.

Future Sci OA

Department of Microbiology & Immunology, University of Otago, Dunedin, New Zealand; Southern Community Laboratories, Dunedin, New Zealand; Department of Microbiology & Immunology, University of Otago, Dunedin, New Zealand; Southern Community Laboratories, Dunedin, New Zealand.

Published: December 2016

Aim: Antibiotic resistance mediated by extended-spectrum β-lactamases (ESBL) and AmpC β-lactamases is widespread and increasingly common, often rendering empiric antibiotic therapy ineffective. In septicemia, delays in initiating effective antibiotic therapy are associated with worse clinical outcomes. With current phenotypic antimicrobial susceptibility testing methods, there is often a delay of 18-24 h before the susceptibility of an isolate is known.

Results: Using an HPLC assay, breakdown of the third-generation cephalosporin cefotaxime by ESBL- and AmpC- β-lactamase-producing organisms could be detected within 90 min with 86.4% sensitivity and 100% specificity; sensitivity for ESBL detection was 100%.

Conclusion: This assay could be readily established in any clinical laboratory with an HPLC to rapidly detect ESBL-producing .

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5242201PMC
http://dx.doi.org/10.4155/fsoa-2016-0042DOI Listing

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