Parenteral and enteral nutrition in surgical critical-care: plasma metabolomics demonstrates divergent effects on nitrogen fatty-acid ribonucleotide and oxidative metabolism

摘要

BackgroundArtificial nutrition support is central to the care of critically ill patients and is primarily provided enterally (EN). There are circumstances when parenteral nutrition (PN) is considered necessary. We are uncertain how each of these approaches confer clinical benefits beyond simply providing calories. We sought to better understand how each of these techniques influence metabolism in critically-ill patients using a broad-based metabolomics approach. Metabolic responses to EN and PN may differ in ways that could help us understand how to optimize use of these therapies.