Multicenter evaluation of the Selux Next-Generation Phenotyping antimicrobial susceptibility testing system
JOURNAL OF CLINICAL MICROBIOLOGY(2024)
摘要
The Selux Next-Generation Phenotyping (NGP) system (Charlestown, MA) is a new antimicrobial susceptibility testing system that utilizes two sequential assays performed on all wells of doubling dilution series to determine MICs. A multicenter evaluation of the performance of the Selux NGP system compared with reference broth microdilution was conducted following FDA recommendations and using FDA-defined breakpoints. A total of 2,488 clinical and challenge isolates were included; gram-negative isolates were tested against 24 antimicrobials, and gram-positive isolates were tested against 15 antimicrobials. Data is provided for all organism-antimicrobial combinations evaluated, including those that did and did not meet FDA performance requirements. Overall very major error and major error rates were less than 1% (31/3,805 and 107/15,606, respectively), essential agreement and categorical agreement were >95%, reproducibility was >= 95%, and the average time-to-result (from time of assay start to time of MIC result) was 5.65 hours.
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关键词
antimicrobial susceptibility testing,clinical diagnostics,clinical microbiology
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