Abstract
Background/Objectives:
To quantify the rate of progressive failure of very-low-birth-weight (VLBW) infants over time in the neonatal intensive care unit to meet growth milestones.
Subjects/Methods:
In a prospective longitudinal study, 114 VLBW preterm infants (⩽1500 g) of both sexes, with normal and/or low weight for gestational age were included. At the start, weight, length, mid-upper arm (MUAC), thigh and cephalic circumferences were measured. Weight/age (W/A), length/age and weight/length (±2 z-score) indices were calculated. All measurements were taken at inclusion, at 7, 15 and 30 days of hospitalization. Chi-square test, analysis of variance and repeated-measures tests were estimated.
Results:
Thirteen cases (14%) died and were excluded soon after the first determinations. In all, 9 (8.9%) died during the study, 12 (11.9%) were discharged before 30 days of life and 80 (79.2%) completed the study. At 7 days, the percentage of preterm infants with an index of W/A <−2 z-scores increased from 44 to 67% (44–68 subjects; P<0.01), with no changes afterwards; the indicator MUAC <−2 z-scores increased at 7 days from 23 to 49% (23–49 subjects); at 15 from 23 to 65% (23–61 subjects) and at 30 days from 23 to 79% (23–63 subjects; P<0.001).
Conclusions:
Clinicians could use these indicators for earlier detection of growth failure in VLBW infants in order to target more aggressive nutrition early.
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Acknowledgements
We thank to Joyce Jackson for her technical assistance and grammatical editing of this document in English. This protocol was supported by the Civil Hospital of Guadalajara and the Institute of Human Nutrition of the University of Guadalajara.
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Contributors: YEL-DT participated in the conception and design of the study, acquisition of data, and analysis and interpretation of data; drafting the article, final approval of the version to be submitted; EMV-G participated in the conception and design of the study, analysis and interpretation of data; drafting the article and revising it critically for important intellectual content; AG-O participated in the conception and design of the study, analysis and interpretation of data; JMR-V participated in revising it critically for important intellectual content; RT-S participated in analysis and interpretation of data; GC-F participated in acquisition and analysis of data; all authors read and approved the final manuscript.
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Larios-Del Toro, Y., Vásquez-Garibay, E., González-Ojeda, A. et al. A longitudinal evaluation of growth outcomes at hospital discharge of very-low-birth-weight preterm infants. Eur J Clin Nutr 66, 474–480 (2012). https://doi.org/10.1038/ejcn.2011.191
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DOI: https://doi.org/10.1038/ejcn.2011.191