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Related Experiment Videos

Microbial contamination of continuous drip feedings.

C P Freedland1, R D Roller, B M Wolfe

  • 1Department of Nutrition, University of California Davis Medical Center, Sacramento 95817.

JPEN. Journal of Parenteral and Enteral Nutrition
|January 1, 1989
PubMed
Summary

Bacterial contamination in enteral feeding systems is common, especially with powdered formulas. Gram-negative bacilli in feeding correlate with abdominal distension, potentially leading to serious infections.

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Area of Science:

  • Microbiology
  • Clinical Nutrition
  • Infectious Diseases

Background:

  • Open continuous enteral feeding systems are crucial for nutritional support.
  • Bacterial contamination of these systems is a potential risk for patient safety.

Purpose of the Study:

  • To assess the prevalence and clinical impact of bacterial contamination in enteral feeding systems.
  • To identify factors influencing contamination levels and types.

Main Methods:

  • Quantitative cultures of enteral feeding systems over 8 days for 33 patients.
  • Clinical data collection, including abdominal distension, fever, and stool consistency.
  • Comparison of feeding cultures with cultures from other body sites in febrile patients.

Main Results:

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  • Powdered formula feedings showed significantly higher contamination rates (94%) compared to canned formulas (15%).
  • Gram-negative bacilli (GNB) in feeding correlated with abdominal distension (p<0.01).
  • Serratia marcescens contamination in feeding linked to patient's body site cultures (p<0.01), with one sepsis case suspected.

Conclusions:

  • Mixing or diluting enteral formulas increases contamination risk.
  • GNB in feeding may cause adverse effects like abdominal distension.
  • Further research is needed to develop strategies for reducing contamination in enteral feeding systems.