Serum copper concentrations in sick and well preterm infants

Area of Science:

• Pediatrics
• Neonatology
• Nutritional Science

Background:

• Serum copper concentrations are vital for infant development.
• Preterm infants have unique nutritional needs and are susceptible to deficiencies.
• Understanding copper metabolism in preterm infants is essential for optimal growth.

Purpose of the Study:

• To establish normal serum copper ranges in preterm infants.
• To investigate the impact of growth on serum copper levels.
• To identify risks of copper deficiency in growing preterm infants.

Main Methods:

• Serial serum copper concentrations were measured in 26 preterm infants over six weeks.
• Infants were divided into healthy growing (Group I) and ill (Group II-A) groups.
• Copper deficiency signs and response to supplementation were observed.

Main Results:

• Healthy growing preterm infants (Group I) had serum copper < 32 microgram/dl.
• Five infants in Group I showed signs of copper deficiency.
• Ill preterm infants (Group II-A) had serum copper > 50 micrograms/dl initially, decreasing with oral feeding and growth.

Conclusions:

• Preterm infants experiencing normal growth on oral feedings are at significant risk for copper deficiency.
• Copper deficiency can manifest clinically and hematologically, responding to supplementation.
• Close monitoring of serum copper is recommended for preterm infants to ensure adequate intake and prevent deficiency.