An intervention to decrease catheter-related bloodstream infections in the ICU
Keystone ICU trial design and results
Design
Prospective cohort study with a collaborative quality-improvement intervention
Treatment
Five-element evidence-based catheter insertion and maintenance bundle
Control
Baseline period before the intervention
Population
103 intensive care units contributing 1981 ICU-months and 375,757 catheter-days
Follow-up
18 months
Primary endpoint
Rate of catheter-related bloodstream infection per 1000 catheter-days
Result
The intervention produced a large and sustained reduction of up to 66% in catheter-related bloodstream infection rates, maintained throughout the 18-month study period.
Secondary endpoints
Sustainability of the effect over time
An evidence-based intervention resulted in a large and sustained reduction (up to 66%) in rates of catheter-related bloodstream infection that was maintained throughout the 18-month study period.
The trial authors, in the published abstract
How it has aged
The founding document of the ICU quality-improvement movement, and the reason catheter insertion checklists exist. It is a before-and-after study rather than a randomised trial, so secular trends cannot be excluded — but the effect size and durability have persuaded almost everyone.
Publications
An intervention to decrease catheter-related bloodstream infections in the ICU
Pronovost P, Needham D, Berenholtz S, et al. An intervention to decrease catheter-related bloodstream infections in the ICU. N Engl J Med 2006 Dec 28;355(26):2725-32.
Up to 66% reduction in catheter-related bloodstream infection