Growth after implementing a donor breast milk program in neonates <33 weeks gestational age or birthweight <1500 grams: Retrospective cohort study

J Perinatol. 2023 May;43(5):608-615. doi: 10.1038/s41372-023-01627-2. Epub 2023 Feb 3.

Abstract

Background: Donor breast milk (DBM) feeding has been associated with less growth than formula in preterm infants. Zinc content in DBM is insufficient to support growth in preterm infants.

Objective: To compare growth from birth to discharge, macro- and micronutrient intake and the frequency of poor growth before (Epoch-1) and after (Epoch-2) implementing a DBM program.

Methods: Retrospective cohort study of 1069 infants born at < 33 weeks' gestational age or birthweight < 1500 g and fed using our adjustable feeding protocol with accurate serial length measurements. Growth was assessed by changes in Z-scores of weight, length and fronto-occipital circumference from birth to discharge.

Results: Growth did not decrease significantly in Epoch-2. However, energy and protein intake increased by 5% and frequency of zinc and vitamin D supplementation increased by >30%.

Conclusions: DBM implementation did not significantly decrease growth from birth to discharge using our adjustable feeding protocol.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Birth Weight
  • Female
  • Gestational Age
  • Humans
  • Infant
  • Infant Formula
  • Infant, Newborn
  • Infant, Premature*
  • Infant, Very Low Birth Weight
  • Milk, Human*
  • Retrospective Studies