Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition · 2020
Growth and Clinical Outcomes of Very Low-Birth-Weight Infants Receiving Acidified vs Nonacidified Liquid Human Milk Fortifiers.
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Cordova Erika G, Soldateli Betina, Rosner Bernard, Drouin Kaitlin, Davitt Emma, Pepin Hunter L, Ellard Deirdre M, Yu Angela, Bell Katherine, Belfort Mandy Brown
Аннотация
BACKGROUND: Liquid human milk fortifiers are used commonly in neonatal intensive care. Use of an acidified HMF (A-HMF) is associated with transient metabolic acidosis, but whether growth outcomes differ between infants fed A-HMF vs nonacidified HMF (NA-HMF) remains unknown.
METHODS: Retrospective cohort study of 255 infants born at <33 weeks' gestation and ≤1500 g who were receiving ≥75% fortified human milk on day of life 14, in a level III neonatal intensive care unit (NICU) from May 2015 to December 2018. Infants born before October 2017 (n = 165) received A-HMF, whereas infants born after October 2017 (n = 90) received NA-HMF. We used logistic regression to estimate odds of metabolic acidosis (serum bicarbonate <16 mEq/L in the first 21 days of life) in infants receiving A-HMF vs NA-HMF and linear mixed models to compare the mean size at discharge (weight, length, head z-scores) by HMF type. We adjusted models for confounders and accounted for the nonindependence of multiple births.
RESULTS: Median gestational age was 28.7 weeks (range, 22.6-32.9) and birth weight 1.1 kg (range, 0.4-1.5). Infants receiving A-HMF had higher adjusted odds of metabolic acidosis than infants receiving NA-HMF (adjusted odds ratio, 2.7; 95% CI, 1.2-6.2). There were no differences between groups in size z-scores at discharge.
CONCLUSIONS: In human-milkfed, very-low-birthweight infants, fortification with liquid A-HMF may contribute to metabolic acidosis in the first month of life, but this practice does not appear to impair growth through NICU discharge, compared with fortification with NA-HMF.
METHODS: Retrospective cohort study of 255 infants born at <33 weeks' gestation and ≤1500 g who were receiving ≥75% fortified human milk on day of life 14, in a level III neonatal intensive care unit (NICU) from May 2015 to December 2018. Infants born before October 2017 (n = 165) received A-HMF, whereas infants born after October 2017 (n = 90) received NA-HMF. We used logistic regression to estimate odds of metabolic acidosis (serum bicarbonate <16 mEq/L in the first 21 days of life) in infants receiving A-HMF vs NA-HMF and linear mixed models to compare the mean size at discharge (weight, length, head z-scores) by HMF type. We adjusted models for confounders and accounted for the nonindependence of multiple births.
RESULTS: Median gestational age was 28.7 weeks (range, 22.6-32.9) and birth weight 1.1 kg (range, 0.4-1.5). Infants receiving A-HMF had higher adjusted odds of metabolic acidosis than infants receiving NA-HMF (adjusted odds ratio, 2.7; 95% CI, 1.2-6.2). There were no differences between groups in size z-scores at discharge.
CONCLUSIONS: In human-milkfed, very-low-birthweight infants, fortification with liquid A-HMF may contribute to metabolic acidosis in the first month of life, but this practice does not appear to impair growth through NICU discharge, compared with fortification with NA-HMF.