Journal
PEDIATRIC CRITICAL CARE MEDICINE
Volume 18, Issue -, Pages S46-S49Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/PCC.0000000000001046
Keywords
intestinal barrier; microbiome; multiple organ dysfunction syndrome; pediatrics
Categories
Funding
- National Institutes of Health [GM072808, GM095442, GM104323, GM109779, GM113228, GM117895]
- National Institutes of Health (NIH)
- Society of Critical Care Medicine
- NIH
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Objective: To describe and summarize the data supporting the gut as the motor driving critical illness and multiple organ dysfunction syndrome presented at the Eunice Kennedy Shriver National Institute of Child Health and Human Development MODS Workshop (March 26-27, 2015). Data Sources: Summary of workshop keynote presentation. Study Selection: Not applicable. Data Extraction: Presented by an expert in the field, the data assessing the role of gastrointestinal dysfunction driving critical illness were described with a focus on identifying knowledge gaps and research priorities. Data Synthesis: Summary of presentation and discussion supported and supplemented by relevant literature. Conclusions: The understanding of gut dysfunction in critical illness has evolved greatly over time, and the gut is now often considered as the motor of critical illness. The association of the gut with critical illness is supported by both animal models and clinical studies. Initially, the association between gut dysfunction and critical illness focused primarily on bacterial translocation into the bloodstream. However, that work has evolved to include other gut-derived products causing distant injury via other routes (e.g., lymphatics). Additionally, alterations in the gut epithelium may be associated with critical illness and influence outcomes. Gut epithelial apoptosis, intestinal hyperpermeability, and perturbations in the intestinal mucus layer have all been associated with critical illness. Finally, there is growing evidence that the intestinal microbiome plays a crucial role in mediating pathology in critical illness. Further research is needed to better understand the role of each of these mechanisms and their contribution to multiple organ dysfunction syndrome in children.
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