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Does opening a milk bank in a neonatal unit change infant feeding practices? A before and after study
María Isabel Utrera Torres1, Carmen Medina López, Sara Vázquez Román
1Service of Neonatology, Hospital Universitario 12 de Octubre, Avenida de Córdoba s/n, 28041, Madrid, Spain. isabelutrera@hotmail.com.
Insights
Opening a donor human milk bank enabled earlier enteral feeding for premature infants. While exclusive breastfeeding rates at discharge remained similar, the bank reduced formula use in the first four weeks of life.
Area of Science:
- Neonatalogy
- Pediatrics
- Public Health
Background:
- Donor human milk banks support breastfeeding beyond mere milk distribution.
- These banks offer opportunities to promote and support breastfeeding mothers.
- Their impact on infant feeding practices in neonatal units is a key area of study.
Purpose of the Study:
- To assess the impact of a human milk bank on exclusive breast milk feeding at discharge.
- To evaluate changes in feeding practices for high-risk infants (low birth weight or preterm) after a milk bank's establishment.
- To analyze the effect on the commencement and attainment of enteral feeding.
Main Methods:
- A comparative study of infants born before (2006) and after (2008) the milk bank's opening.
- Inclusion criteria: birth weight ≤ 1500 g or gestational age < 32 weeks.
- Data collected: hospital stay duration, feeding initiation and full enteral feeding times, milk type received, and discharge feeding type.
Main Results:
- Infants born after the milk bank opened started enteral feeding 16 hours earlier.
- Exclusive breast milk feeding at discharge showed no significant change (54% in 2006 vs. 56% in 2008).
- Formula use within the first 28 days decreased significantly (60% in 2006 vs. 37% in 2008).
Conclusions:
- A donor human milk bank did not increase exclusive breastfeeding at discharge but reduced formula supplementation.
- The availability of donor milk facilitated earlier initiation of enteral feeding in neonatal intensive care.
- Human milk banks play a vital role in optimizing nutrition for vulnerable infants.
Background:
Donor human milk banks are much more than simple centers for collection, storage, processing, and distribution of donor human milk, as they cover other aspects and represent a real opportunity to promote and support breastfeeding. The aim of our study is to assess the impact that opening a human milk bank has had on the proportion of infants receiving exclusive breast milk at discharge and other aspects related to feeding children with birth weight < or = 1500 g or < 32 weeks gestation admitted to the neonatal unit.
Methods:
The study included babies of < or = 1500 g or < 32 weeks gestation. Fifty infants born from February to July in 2006, before the opening of the human milk bank, and 54 born from February to July in 2008, after its opening, met inclusive criteria. We collected data about days of hospital stay, hours of life when feeding was started, hours of life when full enteral feeding was attained, the type of milk received during admission, and the type of feeding on discharge.
Results:
Children born in 2008 commenced feeding 16 hours earlier than those born in 2006 (p = 0.00). The proportion of infants receiving exclusive breast milk at discharge was 54% in 2006 and 56% in 2008 (p = 0.87). The number of days they received their mother's own milk during the first 28 days of life was 24.2 days in 2006, compared to 23.7 days in 2008 (p = 0.70). In 2006, 60% of infants received infant formula at least once in the first 28 days of life, compared to 37% in 2008 (p = 0.01).
Conclusions:
The opening of a donor human milk bank in a neonatal unit did not reduce the proportion of infants exclusively fed with breast milk at discharge, but did reduce the proportion of infants that received infant formula during the first four weeks of life. Also, having donor human milk available enables commencement of enteral feeding earlier.

