PHYSICAL DEVELOPMENT AND COMPOSITION OF THE BODY OF PREMATURE INFANTS IN THE FIRST YEAR OF LIFE: THE RELATIONSHIP BETWEEN THE POTENTIALS OF INTRAUTERINE AND POSTNATAL GROWTH
There are presented data of the analysis of anthropometric indices and body composition in 155 premature infants during the first year of life at the age of full-terms (38-42 weeks post-conceptual age (PCA)) and at the corrected age (CA) of 3, 6, 12 months. The assessment of anthropometric indices was executed using the Fenton and Anthro scales (WHO, 2009); body composition was studied using air plethysmography technique. In premature infants born with a delay in intrauterine development (ZVUR), changes in body weight were established to be depended on the gestational age (GA). For premature infants with GA≥34 weeks, there was typical a significant lag in the rate of body weight increase in comparison with preterm without IUGR, while for less mature children such differences were not revealed. In 3 months of CA, on the contrary, the growth rates in preterm infants with IUGR decreased (GA <34 weeks) in comparison with more mature IUGR children, who had a “jump in growth” combined with an increase in the specific weight of adipose tissue in the body. At CA of 6 and 12 months in children, there was noted a convergence in the rate of growth of premature infants while maintaining significant differences between children with and without IUGR. The specific portion of the adipose tissue in IUGR infants (GA <34 weeks) remained elevated up to 6 months of CA, which is related to the peculiarities of their diet (increase in protein supplementation after the reaching the age of full terms).
About the authorsBelyaeva Irina A.
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