Feeding intolerance, inflammation, and neurobehaviors in preterm infants

Tiffany A Moore1, Rita H Pickler2

  • 1Assistant Professor, College of Nursing, University of Nebraska Medical Center (UNMC), Omaha.

Insights

Feeding intolerance (FI) in preterm infants is linked to higher inflammatory markers like IL6 and poorer neurodevelopmental scores. This suggests an immature nervous system and physiologic dysregulation contribute to FI.

Area of Science:

  • Neonatal care
  • Developmental neuroscience
  • Pediatric gastroenterology

Background:

  • Feeding intolerance (FI) is a common challenge in neonatal intensive care units (NICUs).
  • Early identification of factors contributing to FI is crucial for optimizing infant outcomes.
  • Understanding the interplay between inflammation and neurodevelopment in preterm infants is an active area of research.

Purpose of the Study:

  • To investigate the relationship between feeding intolerance (FI) and inflammatory markers in the first week of life.
  • To examine the association between FI and early neurodevelopmental assessments in preterm infants.
  • To provide insights for NICU clinicians regarding assessments for infants at risk of FI.

Main Methods:

  • Retrospective, matched case-control study design.
  • Inclusion of 114 infants born at or before 32 weeks gestation.
  • Analysis of inflammatory markers (cytokines, IL6) and neurodevelopmental scores.

Main Results:

  • Eight infants developed feeding intolerance before achieving full enteral feedings.
  • Infants with FI exhibited dysregulated cytokine levels, particularly IL6.
  • Lower neurodevelopmental scores were observed in infants with FI compared to controls.

Conclusions:

  • Physiologic dysregulation and immature nervous systems appear to contribute to feeding intolerance in preterm infants.
  • The brain-gut-immune axis may play a significant role in FI and other gastrointestinal complications.
  • Further research is warranted to elucidate these complex relationships in the neonatal population.
Abstract