Accuracy of a Rapid Multiplex Polymerase Chain Reaction Plus a Chromogenic Phenotypic Test Algorithm for Detection of Extended-Spectrum β-Lactamase and Carbapenemase-Producing Gram-Negative Bacilli in Positive Blood Culture Bottles

Clin Infect Dis. 2022 May 30;74(10):1850-1854. doi: 10.1093/cid/ciab848.

Abstract

We studied the performance of an algorithm combining multiplex polymerase chain reaction with phenotypic detection of extended-spectrum β-lactamases and carbapenemases directly from positive blood culture bottles in patients with gram-negative bacteremia and found good concordance with routine cultures. Such an algorithm may be a tool to improve time to optimal therapy in patients with gram-negative bacteremia.

Trial registration: ClinicalTrials.gov NCT02743585.

Keywords: ESBL; antimicrobial resistance; carbapenemase; diagnostics; gram-negative bacteria; rapid test kits.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Algorithms
  • Bacteremia* / diagnosis
  • Bacterial Proteins
  • Blood Culture
  • Gram-Negative Bacteria / genetics
  • Humans
  • Microbial Sensitivity Tests
  • Multiplex Polymerase Chain Reaction*
  • beta-Lactamases / genetics

Substances

  • Bacterial Proteins
  • beta-Lactamases
  • carbapenemase

Associated data

  • ClinicalTrials.gov/NCT02743585