Validation of nosocomial infection in neonatology: a new method for standardized surveillance

Am J Infect Control. 2014 Aug;42(8):861-4. doi: 10.1016/j.ajic.2014.04.021. Epub 2014 Jun 12.

Abstract

Background: Nosocomial infections (NIs) are a leading cause of mortality and morbidity in premature infants. We present a new method for detecting and confirming NIs in a neonatal intensive care unit.

Methods: Newborns with birth weight < 1,500 g or gestational age (GA) < 33 weeks were included prospectively over 2 years in a single-center tertiary neonatal intensive care unit. The computerized physician order entry system (CPOE) generated alerts when antibiotics were prescribed for at least 5 consecutive days and these cases were reviewed by an expert group following international recommendations.

Results: Four hundred sixty-one neonates were included, with a mean GA of 30 weeks (range, 26-32 weeks) and mean birth weight 1,270 g (range, 950-1600 g). The CPOE flagged 158 cases of potential NI, 85.1% of which were classified as true NI and 14.9% of which were false positive. Incidence and device-associated nosocomial bloodstream infection rates were 21.9% and 10.8 per 1,000 central venous catheter days, respectively. GA ≤ 28 weeks (odds ratio, 2.18; 95% confidence interval, 1.2-4) and > 7 central venous catheter days (odds ratio, 1.47; 95% confidence interval, 1.3-1.7) were independently associated with the risk of nosocomial bloodstream infection.

Conclusion: Combining CPOE and interdisciplinary review may improve the accuracy of NI recording in a neonatal intensive care unit.

Keywords: Catheter-related infection; Computerized physician order entry; Epidemiologic surveillance; Interdisciplinary communication; Premature infants.

MeSH terms

  • Anti-Bacterial Agents / therapeutic use*
  • Catheter-Related Infections / diagnosis*
  • Catheter-Related Infections / epidemiology*
  • Drug Utilization*
  • Epidemiological Monitoring*
  • Female
  • Humans
  • Incidence
  • Infant, Newborn
  • Male
  • Medical Order Entry Systems
  • Neonatology / methods*
  • Prospective Studies
  • Tertiary Care Centers

Substances

  • Anti-Bacterial Agents