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Título: | Comparative evaluation of Vitek 2 identification and susceptibility testing of Gram-negative rods directly and isolated from BacT/ALERT-positive blood culture bottles |
Fecha de publicación: | 28-jul-2011 |
Editorial: | Springer |
Cita bibliográfica: | Eur J Clin Microbiol Infect Dis. 2012;31:663-669. |
ISSN: | Print: 0934-9723 Electronic: 1435-4373 |
Resumen: | TheperformanceofVitek2wasevaluatedforthe identification and susceptibility testing of Gram-negative bacilli directly frompositivebloodculturesbottles.Direct inoculation of the positive blood cultureswith theVitek cards ID-GN andAST-NO58was comparedwith the standard inoculationmethod based on the sub-culture of the positive blood culture to agar. A total of 142 blood cultureswereincludedinthestudy;ofthose,119werefrom patients’ clinical samples, while 23 were artificially preparedwith strains showing different mechanisms of resistance. A total of 136 (95.8%) strainswere correctly identified to the species level, only 2 (1.4%) weremisidentifiedand4 (2.8%)werenot identified. Susceptibility results were available for all isolates tested against 17 antibiotics, thus, resulting in a total of 2,414 isolate/antimicrobialcombinations.Theerrorratewas2.8%(67/2,414) overall;0.6%(14/2,414)verymajorerrors, 0.1%(3/2,414) major errorsand2.1%(50/2,414)minor errors.Thedirect method detected 88.5%(22/25) of the strains producing extended-spectrumbeta-lactamases (ESBLs). The susceptibility agreement among the added strains with ESBL, AMPchyperproduction, resistance toceftazidime, carbapenemsandcefepimewasveryhigh.Direct identificationand susceptibility testing gave rapid and reliable results, reducingby24h the turnaround timeof themicrobiology laboratory. |
Autor/es principal/es: | Munoz Dávila, M.J. Yagüe, G Albert, M. García-Lucas, T. |
URI: | http://hdl.handle.net/10201/138110 |
DOI: | https://doi.org/10.1007/s10096-011-1356-1. |
Tipo de documento: | info:eu-repo/semantics/article |
Derechos: | info:eu-repo/semantics/embargoedAccess |
Descripción: | ©Springer-Verlag 2011. This document is the Published version of a Published Work that appeared in final form in European Journal of Clinical Microbiology and Infectious Diseases. To access the final edited and published work see https://doi.org/10.1007/s10096-011-1356-1 |
Aparece en las colecciones: | Artículos: Genética y Microbiología |
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