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Open AccessArticle

Growth Patterns of Neonates Treated with Thermal Control in Neutral Environment and Nutrition Regulation to Meet Basal Metabolism

by Shiro Kubota 1,2,†, Masayoshi Zaitsu 3,4,† and Tatsuya Yoshihara 2,5,*
1
Kubota Life Science Laboratory Co., Ltd., Saga 840-0535, Japan
2
Kubota Maternity Clinic, Fukuoka 810-0014, Japan
3
Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
4
Department of Public Health, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
5
Clinical Research Center, Fukuoka Mirai Hospital, Fukuoka 813-0017, Japan
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Nutrients 2019, 11(3), 592; https://doi.org/10.3390/nu11030592
Received: 8 February 2019 / Revised: 4 March 2019 / Accepted: 5 March 2019 / Published: 11 March 2019
Little is known about the growth patterns of low birth weight neonates (<2500 g) during standardized thermal control and nutrition regulation to meet basal metabolism requirements compared to those of non-low birth weight neonates (2500 g and above). We retrospectively identified 10,544 non-low birth weight and 681 low birth weight neonates placed in thermo-controlled incubators for up to 24 h after birth. All neonates were fed a 5% glucose solution 1 h after birth and breastfed every 3 h (with supplementary formula milk if applicable) to meet basal metabolism requirements. Maximum body-weight loss (%), percentage body-weight loss from birth to peak weight loss (%/day), and percentage body-weight gain from peak weight loss to day 4 (%/day) were assessed by multivariable linear regression. Overall, the growth curves showed a uniform J-shape across all birth weight categories, with a low mean maximum body-weight loss (1.9%) and incidence of neonatal jaundice (0.3%). The body-weight loss patterns did not differ between the two groups. However, low birth weight neonates showed significantly faster growth patterns for percentage body-weight gain: β = 0.52 (95% confidence interval, 0.46 to 0.58). Under thermal control and nutrition regulation, low birth weight neonates might not have disadvantages in clinical outcomes or growth patterns. View Full-Text
Keywords: growth chart; breastfeeding; physiological body-weight loss; thermal control; basal maintenance expenditure growth chart; breastfeeding; physiological body-weight loss; thermal control; basal maintenance expenditure
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Kubota, S.; Zaitsu, M.; Yoshihara, T. Growth Patterns of Neonates Treated with Thermal Control in Neutral Environment and Nutrition Regulation to Meet Basal Metabolism. Nutrients 2019, 11, 592.

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