The American journal of clinical nutrition · 2019
Optimizing the growth of very-low-birth-weight infants requires targeting both nutritional and nonnutritional modifiable factors specific to stage of hospitalization.
СтатьяМногоцентровое исследованиеРандомизированное исследованиеПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Asbury Michelle R, Unger Sharon, Kiss Alex, Ng Dawn V Y, Luk Yunnie, Bando Nicole, Bishara Rosine, Tomlinson Christopher, O'Connor Deborah L, GTA-DoMINO Feeding Group
Аннотация
BACKGROUND: Data on how baseline characteristics, acuity, morbidity, and nutrition work in combination to affect the growth of very-low-birth-weight (VLBW, <1500 g) infants are limited.
OBJECTIVE: We aimed to determine factors associated with in-hospital weight, length, and head circumference (HC) trajectories of VLBW infants.
METHODS: VLBW infants (n = 316) from the GTA-DoMINO trial were included. Linear mixed-effects models assessed relations of baseline characteristics, acuity (at birth, across hospitalization), major morbidities, and nutrition (enteral feeding type, macronutrient/energy intakes) with changes in anthropometrics over hospitalization (days 1-8, 9-29, 30-75).
RESULTS: Specific factors and the strength of their associations with growth depended on in-hospital time interval. Small-for-gestational-age infants experienced weight gain (4.3 g · kg-1 · d-1; 95% CI: 2.0, 6.5 g · kg-1 · d-1) during days 1-8, versus weight loss (-4.6 g · kg-1 · d-1; 95% CI: -5.6, -3.7 g · kg-1 · d-1) among appropriate-for-gestational-age infants (P < 0.001). Positive-pressure ventilation (versus oxygen/room air) was associated with slower weight (-1.8 g · kg-1 · d-1) and HC (-0.25 cm/wk) gain during days 9-29 (P < 0.001). Morbidities were negatively associated with growth after days 1-8, with patent ductus arteriosus (PDA) showing negative associations with weight (-2.7 g · kg-1 · d-1), length (-0.11 cm/wk), and HC (-0.21 cm/wk) gain during days 9-29 (P < 0.001). Macronutrient/energy intakes were associated with weight across hospitalization (P ≤ 0.01), with greater weight gain (1.3-3.0 g · kg-1 · d-1) among infants achieving macronutrient/energy recommendations during days 9-29 and 30-75. Macronutrient/energy intakes were associated with HC during the first month (P = 0.013-0.003), with greater HC gain (0.07-0.12 cm/wk) among infants achieving protein, lipid, and energy recommendations during days 9-29.
CONCLUSIONS: Baseline characteristics, acuity, morbidity, and nutrition factors were independently associated with VLBW infant growth. A focus on achieving macronutrient/energy recommendations and improving nutrient delivery to PDA-diagnosed infants may yield improvements to their growth. This trial was registered at www.isrctn.com as ISRCTN35317141.
OBJECTIVE: We aimed to determine factors associated with in-hospital weight, length, and head circumference (HC) trajectories of VLBW infants.
METHODS: VLBW infants (n = 316) from the GTA-DoMINO trial were included. Linear mixed-effects models assessed relations of baseline characteristics, acuity (at birth, across hospitalization), major morbidities, and nutrition (enteral feeding type, macronutrient/energy intakes) with changes in anthropometrics over hospitalization (days 1-8, 9-29, 30-75).
RESULTS: Specific factors and the strength of their associations with growth depended on in-hospital time interval. Small-for-gestational-age infants experienced weight gain (4.3 g · kg-1 · d-1; 95% CI: 2.0, 6.5 g · kg-1 · d-1) during days 1-8, versus weight loss (-4.6 g · kg-1 · d-1; 95% CI: -5.6, -3.7 g · kg-1 · d-1) among appropriate-for-gestational-age infants (P < 0.001). Positive-pressure ventilation (versus oxygen/room air) was associated with slower weight (-1.8 g · kg-1 · d-1) and HC (-0.25 cm/wk) gain during days 9-29 (P < 0.001). Morbidities were negatively associated with growth after days 1-8, with patent ductus arteriosus (PDA) showing negative associations with weight (-2.7 g · kg-1 · d-1), length (-0.11 cm/wk), and HC (-0.21 cm/wk) gain during days 9-29 (P < 0.001). Macronutrient/energy intakes were associated with weight across hospitalization (P ≤ 0.01), with greater weight gain (1.3-3.0 g · kg-1 · d-1) among infants achieving macronutrient/energy recommendations during days 9-29 and 30-75. Macronutrient/energy intakes were associated with HC during the first month (P = 0.013-0.003), with greater HC gain (0.07-0.12 cm/wk) among infants achieving protein, lipid, and energy recommendations during days 9-29.
CONCLUSIONS: Baseline characteristics, acuity, morbidity, and nutrition factors were independently associated with VLBW infant growth. A focus on achieving macronutrient/energy recommendations and improving nutrient delivery to PDA-diagnosed infants may yield improvements to their growth. This trial was registered at www.isrctn.com as ISRCTN35317141.