Microbiological and genotypic analysis of methicillin-resistant Staphylococcus aureus bacteremia

Antimicrob Agents Chemother. 2008 Sep;52(9):3441-3. doi: 10.1128/AAC.00357-08. Epub 2008 Jul 7.

Abstract

In a recent landmark trial of bacteremia caused by methicillin-resistant Staphylococcus aureus (MRSA) isolates, vancomycin MICs were >or=1 microg/ml for only 16% of the isolates, and accessory gene regulator (agr) function as measured by delta-hemolysin activity was absent or reduced in only 28.1% of the isolates. This clinical study did not capture a population of MRSA isolates predictive of vancomycin treatment failure.

Publication types

  • Clinical Trial
  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Bacterial Agents / pharmacology*
  • Anti-Bacterial Agents / therapeutic use
  • Bacteremia / drug therapy
  • Bacteremia / microbiology*
  • Bacterial Proteins / genetics
  • Bacterial Proteins / metabolism
  • Daptomycin / pharmacology
  • Daptomycin / therapeutic use
  • Endocarditis, Bacterial / drug therapy
  • Endocarditis, Bacterial / microbiology
  • Genotype
  • Hemolysin Proteins / genetics
  • Hemolysin Proteins / metabolism
  • Humans
  • Methicillin Resistance*
  • Staphylococcal Infections / drug therapy
  • Staphylococcal Infections / microbiology*
  • Staphylococcus aureus / classification*
  • Staphylococcus aureus / drug effects
  • Staphylococcus aureus / genetics*
  • Treatment Outcome
  • Vancomycin / pharmacology
  • Vancomycin / therapeutic use

Substances

  • Anti-Bacterial Agents
  • Bacterial Proteins
  • Hemolysin Proteins
  • Vancomycin
  • delta hemolysin protein, Staphylococcus aureus
  • Daptomycin