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Sen S, Andrews C, Anderson E, Turner D, Monthé-Drèze C, Wachman EM. Type of feeding provided with dextrose gel impacts hypoglycemia outcomes: comparing donor milk, formula, and breastfeeding. J Perinatol. 2020 Nov;40(11):1705-1711. doi: 10.1038/s41372-020-00776-y. Epub 2020 Aug 13. PMID: 32792637.

Objective: Examine neonatal hypoglycemia (NH) outcomes based on type of feeding provided with first dextrose gel.

Study design: Retrospective matched cohort study of 99 infants ≥35 weeks gestational age who received dextrose gel in combination with breastfeeding, formula feeding, or donor milk feeding for NH. The exposure was feeding type. The outcomes were: (1) median change in blood glucose (Δ BG) concentration after first gel, (2) odds of second gel, and (3) odds of recurrent NH.

Results: Median Δ BG was greater in formula (17.0 mg/dL) and donor milk (19.0 mg/dL) fed vs. breastfed infants (7.0 mg/dL). Donor milk and formula feeding were both associated with lower odds of second gel and recurrent NH. Associations remained significant in late-preterm infants, but only formula feeding remained significant in full-term infants.

Conclusions: Formula and donor milk feedings both raised blood sugar concentrations, but the impact differed by gestational age.

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