In vitro antimicrobial activity of imipenem plus amikacin or polymyxin B against carbapenem-resistant Pseudomonas aeruginosa isolates

Diagn Microbiol Infect Dis. 2018 Oct;92(2):152-154. doi: 10.1016/j.diagmicrobio.2018.05.004. Epub 2018 May 12.

Abstract

The aim of this study was to evaluate the antimicrobial activity of imipenem plus amikacin or polymyxin B against six carbapenem-resistant P. aeruginosa by time-kill assay. Synergism was observed in two isolates for combinations with amikacin. For combinations with polymyxin B, synergism and antagonism also occurred in two isolates.

Keywords: Amikacin; Imipenem; Polymyxin B; Pseudomonas aeruginosa; Time-kill assay.

MeSH terms

  • Amikacin / pharmacology*
  • Anti-Infective Agents / pharmacology*
  • Carbapenems / pharmacology*
  • Drug Resistance, Bacterial
  • Drug Synergism
  • Humans
  • Imipenem / pharmacology*
  • Microbial Sensitivity Tests
  • Polymyxin B / pharmacology*
  • Pseudomonas Infections / microbiology*
  • Pseudomonas aeruginosa / drug effects
  • Pseudomonas aeruginosa / genetics

Substances

  • Anti-Infective Agents
  • Carbapenems
  • Imipenem
  • Amikacin
  • Polymyxin B