Predominance of Gram-negative bacilli among patients with catheter-related bloodstream infections

Clin Microbiol Infect. 2014 Oct;20(10):O627-9. doi: 10.1111/1469-0691.12565. Epub 2014 Feb 20.

Abstract

We evaluated changes in the epidemiology of catheter-related bloodstream infections (CRBSIs) between 1996 and 2012 in a tertiary care centre in Israel. The cohort included 1754 episodes of CRBSI. The incidence of CRBSIs decreased throughout the study period, whereas 30-day mortality following bacteraemia increased. There was a linear shift toward predominance of Gram-negative bacilli throughout the study period (p for trend<0.001). In 1996, 68% (68/100) of CRBSIs were caused by Gram-positive cocci, whereas in 2012 77.8% (28/26) were caused by Gram-negative bacilli. The shift towards Gram-negative CRBSIs and the associated mortality mandates that empirical treatment for CRBSIs be directed by local epidemiology.

Keywords: Acinetobacter; Klebsiella; catheter-related bacteraemia; central venous catheter.

MeSH terms

  • Bacteremia / epidemiology
  • Bacteremia / microbiology*
  • Catheter-Related Infections / epidemiology*
  • Catheter-Related Infections / microbiology
  • Cross Infection / epidemiology
  • Cross Infection / microbiology
  • Gram-Negative Bacterial Infections / epidemiology*
  • Gram-Negative Bacterial Infections / microbiology
  • Gram-Positive Bacterial Infections / epidemiology
  • Gram-Positive Bacterial Infections / microbiology
  • Humans
  • Israel
  • Retrospective Studies