J Korean Med Sci.  2018 Mar;33(10):e97. 10.3346/jkms.2018.33.e97.

Sudden Deaths of Neonates Receiving Intravenous Infusion of Lipid Emulsion Contaminated with Citrobacter freundii

• Bae JY
• Kang CK
• Choi SJ
• Lee E
• Choe PG
• Park WB
• Kim NJ
• Kim EC
• Oh MD

• KMID: 2405013
• DOI: http://doi.org/10.3346/jkms.2018.33.e97

Abstract

At an intensive care unit, four neonates died consecutively within 80 minutes. Citrobacter freundii was isolated from blood samples of the 4 patients. It was also cultured from the leftover SMOFlipid that had been infused intravenously into the patients. In this in vitro study, we evaluated the bacterial growth kinetics and change in size of fat globules in SMOFlipid contaminated with C. freundii. Following the growth of bacteria, pH of SMOFlipid decreased to < 6, and the number of fat globules larger than 5 µm increased. Pulmonary fat embolism is proposed as a possible cause of the sudden deaths as well as fulminant sepsis.

Keyword

Neonate; Sudden Death; Citrobacter freundii; Fat Embolism; Intravenous Fat Emulsions

MeSH Terms

Bacteria
Citrobacter freundii*
Citrobacter*
Death, Sudden*
Embolism, Fat
Fat Emulsions, Intravenous
Humans
Hydrogen-Ion Concentration
In Vitro Techniques
Infant, Newborn*
Infusions, Intravenous*
Intensive Care Units
Kinetics
Sepsis
Fat Emulsions, Intravenous