Ceftazidime retains in vivo efficacy against strains of Stenotrophomonas maltophilia for which traditional testing predicts resistance

Ceftazidime retains in vivo efficacy against strains of Stenotrophomonas maltophilia for which traditional testing predicts resistance

Stenotrophomonas maltophilia is responsible for a growing number of nosocomial infections and is difficult to treat owing to limited antibiotic susceptibilities. However, there are numerous recently published examples where traditional susceptibility testing methodology fails to accurately predict in vivo efficacy. We sought to determine if there were efficacious antibiotics against S. maltophilia that have been overlooked due to specious in vivo resistance determined by traditional in vitro methods. Antibiotic resistance testing was performed utilizing conventional and nutrient-limited media. Antibiotics with discordant minimum inhibitory concentrations (MICs) between the two media were selected for further experimentation.

View the full article and citation at: https://pubmed.ncbi.nlm.nih.gov/40401937/