Document Type
Article
Publication Date
2-25-2022
Publication Source
Emerging Microbes & Infections
Abstract
Carbapenem-resistant Pseudomonas aeruginosa (CR-PA) is a major healthcare-associated pathogen worldwide. In the United States, 10–30% of P. aeruginosa isolates are carbapenem-resistant, while globally the percentage varies considerably. A subset of carbapenem-resistant P. aeruginosa isolates harbour carbapenemases, although due in part to limited screening for these enzymes in clinical laboratories, the actual percentage is unknown. Carbapenemase-mediated carbapenem resistance in P. aeruginosa is a significant concern as it greatly limits the choice of anti-infective strategies, although detecting carbapenemase-producing P. aeruginosa in the clinical laboratory can be challenging. Such organisms also have been associated with nosocomial spread requiring infection prevention interventions. The carbapenemases present in P. aeruginosa vary widely by region but include the Class A beta-lactamases, KPC and GES; metallo-beta-lactamases IMP, NDM, SPM, and VIM; and the Class D, OXA-48 enzymes. Rapid confirmation and differentiation among the various classes of carbapenemases is key to the initiation of early effective therapy. This may be accomplished using either molecular genotypic methods or phenotypic methods, although both have their limitations. Prompt evidence that rules out carbapenemases guides clinicians to more optimal therapeutic selections based on local phenotypic profiling of non-carbapenemase-producing, carbapenem-resistant P. aeruginosa. This article will review the testing strategies available for optimizing therapy of P. aeruginosa infections.
Inclusive pages
811-814
ISBN/ISSN
Online ISSN: 2222-1751
Document Version
Published Version
Publisher
Taylor & Francis
Volume
11
Peer Reviewed
yes
Issue
1
Keywords
Pseudomonas aeruginosa, carbapenems, carbapenemase, susceptibility testing, beta-lactamase, beta-lactamase inhibitor
Sponsoring Agency
FCT is an employee of Cepheid; CMG and DPN have received research funding from Cepheid.
eCommons Citation
Tenover, Fred C.; Nicolau, David P.; and Gill, Christian M., "Carbapenemase-Producing Pseudomonas aeruginosa – an Emerging Challenge" (2022). Biology Faculty Publications. 354.
https://ecommons.udayton.edu/bio_fac_pub/354
Included in
Biology Commons, Biotechnology Commons, Cell Biology Commons, Genetics Commons, Microbiology Commons, Molecular Genetics Commons
Comments
This document is made available for download in compliance with the publisher’s open-access policy. Permission documentation is on file.