Abstract
Objective
Identification of catheter-related bloodstream infection (CR-BSI) risk factors and determination of whether intervention related to identified risk factors would reduce CR-BSI rates.
Design
Prospective, observational, interventional and interrupted time-series study.
Setting
Pediatric Intensive Care Unit (PICU) in a university hospital.
Methods
During a 7-year period, 609 central venous catheters (CVC) were placed in 389 patients. CR-BSI risk factors were determined by multivariate analysis during two periods (January 2000–November 2002 and January 2003–April 2007). An intervention to reduce identified risk factors was performed after the first period. CR-BSI rates per 1,000 catheters-days were compared during the two periods.
Results
The CR-BSI rate was 11.94 [(95% CI 7.94–15.94)/1,000 catheter-days during the first period]. Weight [OR 0.96 (0.91–0.99)], parenteral nutrition (PN) [OR 3.38 (1.40–8.19)] and indwelling time (IT) [OR 1.08 (1.02–1.14)] were CR-BSI risk factors. Practice changes aimed at reducing PN and IT were introduced. PN decreased from 49.8% [95% CI (49.7–49.9)] to 26.7% [(95% CI 26.6–26.8)] (p < 0.001), and IT dropped from 9.92 (95% CI 9.09–10.75) to 8.13 (95% CI 7.47–8.79) days (p < 0.001). The CR-BSI rate was reduced to 3.05 (95% CI 0.93–5.17)/1,000 catheter-days. During the last period, PN and IT were no longer CR-BSI risk factors. Type of catheterisation (guide wire exchange) [OR 6.66 (1.40–31.7)] was the only CR-BSI risk factor.
Conclusions
PN and IT were independent CR-BSI risk factors during the first period. An intervention focused on PN and IT reduction resulted in a sustained decrease of CR-BSI rates in our PICU.
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Acknowledgments
The authors gratefully acknowledge the assistance of the PICU medical and nursing staff and of the Microbiology Department of Hospital Universitario Central de Asturias. There was no financial support for the study. The authors do not have an association that might pose a conflict of interest.
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This article is discussed in the editorial available at doi:10.1007/s00134-011-2135-2.
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Rey, C., Álvarez, F., De-La-Rua, V. et al. Intervention to reduce catheter-related bloodstream infections in a pediatric intensive care unit. Intensive Care Med 37, 678–685 (2011). https://doi.org/10.1007/s00134-010-2116-x
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DOI: https://doi.org/10.1007/s00134-010-2116-x