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Early hypophosphatemia in very low birth weight preterm infants

Agata Pająk1, Barbara Królak-Olejnik1, Agnieszka Szafrańska1

  • 1Department and Clinic of Neonatology, University Hospital, Wroclaw Medical University, Poland.

Advances in Clinical and Experimental Medicine : Official Organ Wroclaw Medical University
|May 24, 2018
PubMed

Insights

Hypophosphatemia is common in preterm infants, especially those with intrauterine growth restriction (IUGR) and extremely low birth weight (ELBW). Close monitoring is crucial in the first week of life for these vulnerable neonates.

Area of Science:

  • Neonatal Medicine
  • Biochemistry
  • Pediatric Nutrition

Background:

  • Refeeding Syndrome (RFS) symptoms arise after nutritional support in undernourished patients.
  • Intrauterine growth restriction (IUGR) in neonates mirrors postnatal RFS.
  • Parenteral nutrition in very low birth weight (VLBW) neonates can cause biochemical imbalances.

Purpose of the Study:

  • To analyze metabolic disorders in preterm infants during their first week of life.
  • To identify risk factors for hypophosphatemia in low birth weight neonates receiving parenteral nutrition.

Main Methods:

  • Retrospective analysis of 49 preterm infants (24 0/7 to 32 6/7 weeks gestation).
  • Patients categorized into hypophosphatemia (HP, ≤3.1 mg/dL) and normal phosphatemia (NP, >3.1 mg/dL) groups.
  • Analysis of phosphate levels within the first week of life.

Main Results:

  • Hypophosphatemia occurred in 61% of infants early in life; 45% experienced a further drop.
  • In 39% of cases, hypophosphatemia developed between days 4-7.
  • Neonates with IUGR and extremely low birth weight (ELBW) had a higher risk of early hypophosphatemia.

Conclusions:

  • Early hypophosphatemia requires close monitoring in newborns, particularly those with ELBW and IUGR.
  • Further research is necessary to optimize nutritional strategies from the initial days of life for preterm infants.
Abstract

Keywords:
hypophosphatemiametabolicneonatologynutritionpreterm infant

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