Factors Affecting the Gut Microbiome in Pediatric Intestinal Failure

Area of Science:

• Gastroenterology
• Microbiology
• Pediatric Medicine

Background:

• Limited data exists on the gut microbiome and dysbiosis factors in pediatric intestinal failure (PIF).
• Understanding these factors is crucial for managing PIF and improving patient outcomes.

Purpose of the Study:

• To characterize the gut microbiome in children with PIF.
• To identify factors influencing microbial composition and diversity in this population.

Main Methods:

• A single-center, prospective cohort study involving children with PIF.
• Longitudinal stool sample collection over one year with concurrent collection of demographic, clinical, and medication data.
• Assessment of gut microbial diversity (alpha and beta diversity) and comparison based on host characteristics.

Main Results:

• Reduced gut microbial alpha diversity was associated with prophylactic antibiotics, central line-associated bloodstream infections (CLABSI), acid blocker use, and high parenteral nutrition (PN) caloric delivery.
• Increasing age correlated with improved alpha diversity.
• Beta diversity was influenced by age, CLABSI, antibiotics, acid blockers, PN, and oral feeding status.
• Specific microbial taxa were significantly associated with various host characteristics.

Conclusions:

• Gut microbial diversity in PIF is significantly influenced by factors integral to intestinal rehabilitation, including medications, PN dependence, CLABSI, oral feeding, and patient age.
• Further multi-center investigations are warranted to elucidate the clinical impact of these microbial alterations on PIF outcomes.