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  • Title: Performance of ePlex® blood culture identification panels in clinical isolates and characterization of antimicrobial stewardship opportunities.
    Author: Thomas JK, Clark J, Arora V, Burgess DS, Burgess DR, Mynatt RP, VanHoose JD, Wallace KL, Cotner SE.
    Journal: Diagn Microbiol Infect Dis; 2024 Jul; 109(3):116269. PubMed ID: 38692201.
    Abstract:
    We assessed the performance of GenMark's ePlex® Blood Culture Identification (BCID) Panels for overall agreement of organism identification and resistance mechanism detection with standard microbiologic methods. This study included patients with a positive blood culture from May 2020 to January 2021. The primary outcomes were to assess concordance of ePlex® organism identification with standard identification methods and concordance of ePlex® genotypic resistance mechanism detection with standard phenotypic susceptibility testing. Secondary outcomes included panel specific performance and characterization of antimicrobial stewardship opportunities. The overall identification concordance rate in 1276 positive blood cultures was 98.1%. The overall concordance for the presence of resistance markers was 98.2% and concordance for the absence of resistance markers was 100%. A majority of ePlex® results (69.5%) represented opportunities for potential antimicrobial stewardship intervention. High concordance rates between the ePlex® BCID panels and standard identification and susceptibility methods enable utilization of results to guide rapid antimicrobial optimization.
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