Nutrient Enrichment of Mother's Milk and Growth of Very Preterm Infants After Hospital Discharge

Gitte Zachariassen, Jan Faerk, Carl Grytter, Birgitte Hass Esberg, Jacob von Bornemann Hjelmborg, Sven Aage Mortensen, Henrik Thybo Christesen, Susanne Halken

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Abstrakt

Objective: To determine if the addition of a multinutrient human milk fortifier to mother's milk while breastfeeding very preterm infants after hospital discharge is possible and whether it influences first-year growth. Methods: Of a cohort of 320 infants (gestational age: 24-32 weeks; birth weight: 535-2255 g), breastfed infants (65% [n = 207]) were randomly assigned shortly before hospital discharge to receive either unfortified (n = 102, group A) or fortified (n = 105, group B) mother's milk until 4 months' corrected age (CA). The remaining infants were bottle-fed with a preterm formula (group C). Follow-up was performed at term and at 2, 4, 6, and 12 months' CA. Results: Mean duration of breastfeeding after term was not significantly different between groups A and B (11.8 and 10.6 weeks, respectively). Weight, length, and head circumference were not significantly different between groups A and B at 12 months' CA. Compared with groups A and B, infants in group C had a higher increase in weight z score until term and in length z score until 6 months' CA. At 12 months' CA, boys in group C were significantly longer and heavier compared with those in groups A and B, whereas girls in group C were longer and heavier compared with those in group A only. A higher protein intake was related to a higher serum urea nitrogen level and growth. Conclusions: Fortification of mother's milk after hospital discharge while breastfeeding very preterm infants was possible without influencing breastfeeding duration but did not significantly influence growth parameters at 1 year of age compared with unfortified mother's milk.
OriginalsprogEngelsk
TidsskriftPediatrics
Vol/bind127
Udgave nummer4
Sider (fra-til)e995-e1003
ISSN0031-4005
DOI
StatusUdgivet - 2011

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