PubMed · 517532
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K E Avis. 1979. Contamination: lost or found.. https://pubmed.ncbi.nlm.nih.gov/517532/
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BACKGROUND: Duration of intravenous fat emulsion (IVFE) infusions, precise method of administration (manufactured bottle vs repackaged syringe), and interval for administration set change continue to be debated. OBJECTIVE: To determine the contamination rate associated with replacing IVFE administration sets every 24 hours in newborn infants receiving fat emulsion repackaged into unit-of-use syringes. METHODS: This was a prospective, microbiologic study of 90 administration sets used in 19 neonates. IVFE samples were obtained from administration sets at the end of a 19- to 23-hour infusion and prior to daily tubing set change from infants who received repackaged IVFE. Samples of IVFE (1-3 mL) were aseptically removed at the catheter connection site proximal to the patient, transferred into BACTEC PEDSPlus culture media, and continuously monitored for 5 days to detect gram-positive and gram-negative organisms, as well as yeast. RESULTS: Two samples (2.27%) grew coagulase-negative Staphylococcus. Both samples were from the same asymptomatic patient and were obtained on consecutive days. A blood sample obtained through this infant's central catheter grew the same organism and suggested catheter hub colonization as the primary site of microbe origin. CONCLUSIONS: Microbial contamination of IVFE infusion sets changed at 24-hour intervals, using unit-of-use syringes in neonates, was low at 2.2%.
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