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Erschienen in: European Journal of Clinical Microbiology & Infectious Diseases 8/2022

16.07.2022 | Original Article

A side-by-side comparison of the performance and time-and-motion data of VITEK MS

verfasst von: Marta Bardelli, Michela Padovani, Simona Fiorentini, Arnaldo Caruso, Deborah Yamamura, Mark Gaskin, Ali Jissam, Juan José González-López, M. Nieves Larrosa, Tomàs Pumarola, Anna Lassus, Barbara Louis, Nicolas Capron

Erschienen in: European Journal of Clinical Microbiology & Infectious Diseases | Ausgabe 8/2022

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Abstract

Matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry systems are designed for rapid and reliable microbial identification. VITEK MS PRIME is the bioMérieux’s new generation instrument equipped with a continuous load-and-go sample loading system, urgent slide prioritization for critical patient samples and new internal components for faster identification. The aim of this study was to assess the performance of VITEK MS PRIME and to compare it to that of the VITEK MS system. In addition, at two sites, we performed a time-and-motion study to evaluate the efficiency of sample analysis from colony picking to slide removal from the instrument. We analyzed by VITEK MS and VITEK MS PRIME a total of 1413 isolates (1320 bacterial and 76 yeast) deriving from routine diagnostic samples that came into four laboratories in Canada, France, Italy, and Spain. VITEK MS PRIME and VITEK MS were concordant to the species and genus level for 1354/1413 (95.8%) and to the species level for 1341/1413 (94.9%). The identification and concordance rates in individual centers were largely homogenous. Overall, VITEK MS PRIME identified 1370/1413 (97.0%) of isolates compared to 1367/1413 (96.7%) identified by VITEK MS. Identification rates were consistently high for all microorganism categories. A time-and-motion study showed that the use of VITEK MS PRIME was associated with significant time saving. VITEK MS PRIME performs as well as VITEK MS and reduces the time necessary for pathogen identification. To fully optimize the laboratory process and obtain maximum efficiency, VITEK MS PRIME must be integrated into the laboratory workflow.
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Metadaten
Titel
A side-by-side comparison of the performance and time-and-motion data of VITEK MS
verfasst von
Marta Bardelli
Michela Padovani
Simona Fiorentini
Arnaldo Caruso
Deborah Yamamura
Mark Gaskin
Ali Jissam
Juan José González-López
M. Nieves Larrosa
Tomàs Pumarola
Anna Lassus
Barbara Louis
Nicolas Capron
Publikationsdatum
16.07.2022
Verlag
Springer Berlin Heidelberg
Erschienen in
European Journal of Clinical Microbiology & Infectious Diseases / Ausgabe 8/2022
Print ISSN: 0934-9723
Elektronische ISSN: 1435-4373
DOI
https://doi.org/10.1007/s10096-022-04472-x

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