Carbapenem-Resistant Pseudomonas aeruginosa Bacteremia: Risk Factors for Mortality and Microbiologic Treatment Failure

Antimicrob Agents Chemother. 2016 Dec 27;61(1):e01243-16. doi: 10.1128/AAC.01243-16. Print 2017 Jan.

Abstract

We reviewed 37 patients treated for bacteremia due to carbapenem-resistant (CR) Pseudomonas aeruginosa Although 65% of isolates were multiple-drug resistant, therapeutic options were available, as all were susceptible to ≥1 antibiotic. A total of 92% of patients received active antimicrobial therapy, but only 57% received early active therapy (within 48 h). Fourteen-day mortality was 19%. Microbiologic failure occurred in 29%. The Pitt bacteremia score (P = 0.046) and delayed active therapy (P = 0.027) were predictive of death and microbiologic failure, respectively.

Keywords: Pseudomonas aeruginosa; bacteremia; carbapenem resistance; mortality.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Anti-Bacterial Agents / pharmacology*
  • Anti-Bacterial Agents / therapeutic use*
  • Bacteremia / drug therapy*
  • Bacteremia / microbiology
  • Carbapenems / pharmacology*
  • Carbapenems / therapeutic use*
  • Female
  • Humans
  • Male
  • Microbial Sensitivity Tests
  • Middle Aged
  • Pseudomonas Infections / drug therapy*
  • Pseudomonas Infections / metabolism
  • Pseudomonas aeruginosa / drug effects*
  • Retrospective Studies
  • Risk Factors
  • Young Adult

Substances

  • Anti-Bacterial Agents
  • Carbapenems