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Vitamin A and preterm infants: what we know, what we don't know, and what we need to know

H Mactier1, L T Weaver

  • 1Princess Royal Maternity and Division of Developmental Medicine, University of Glasgow, 8-16 Alexandra Parade, Glasgow G31 2ER, Scotland, UK. helen.mactier@northglasgow.scot.nhs.uk

Insights

Vitamin A is crucial for infant development. Supplementation reduces mortality in newborns, but optimal strategies for extremely preterm infants require further study.

Area of Science:

  • Neonatal nutrition
  • Vitamin A metabolism
  • Pediatric intensive care

Background:

  • Vitamin A is vital for growth and development.
  • Vitamin A supplementation in newborns reduces mortality in developing nations.
  • Extremely preterm infants in developed countries have low vitamin A stores and are at high risk of deficiency.

Purpose of the Study:

  • To review the current understanding of vitamin A supplementation in extremely preterm infants.
  • To highlight the lack of defined optimal supplementation protocols for this vulnerable population.
  • To emphasize the need for further research into vitamin A status and long-term outcomes in preterm infants.

Main Methods:

  • Literature review on vitamin A's role in infant development and deficiency.
  • Analysis of current practices and evidence for vitamin A supplementation in preterm infants.
  • Identification of research gaps concerning hepatic stores, functional status, and long-term outcomes.

Main Results:

  • Vitamin A supplementation is beneficial for newborns, reducing mortality.
  • Optimal vitamin A supplementation strategies for extremely preterm infants are not well-defined.
  • Early vitamin A supplementation is not consistently practiced in the UK despite evidence of benefit.

Conclusions:

  • Further research is urgently needed to establish optimal vitamin A supplementation protocols for preterm infants.
  • Studies should include quantification of hepatic vitamin A stores and functional assessments.
  • Long-term outcomes associated with vitamin A status in preterm infants require investigation.

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