TY - JOUR
T1 - Evolution of resting energy expenditure, respiratory quotient, and adiposity in infants recovering from corrective surgery of major congenital gastrointestinal tract anomalies
T2 - A cohort study
AU - Pereira-Da-silva, Luís
AU - Barradas, Susana
AU - Moreira, Ana Catarina
AU - Alves, Marta
AU - Papoila, Ana Luisa
AU - Virella, Daniel
AU - Cordeiro-Ferreira, Gonçalo
PY - 2020/10/2
Y1 - 2020/10/2
N2 - This cohort study describes the evolution of resting energy expenditure (REE), respiratory quotient (RQ), and adiposity in infants recovering from corrective surgery of major congenital gastrointestinal tract anomalies. Energy and macronutrient intakes were assessed. The REE and RQ were assessed by indirect calorimetry, and fat mass index (FMI) was assessed by air displacement plethysmography. Longitudinal variations over time are described. Explanatory models for REE, RQ, and adiposity were obtained by multiple linear regression analysis. Twenty-nine infants were included, 15 born preterm and 14 at term, with median gestational age of 35.3 and 38.1 weeks and birth weight of 2304 g and 2935 g, respectively. In preterm infants, median REE varied between 55.7 and 67.4 Kcal/kg/d and median RQ increased from 0.70 to 0.86–0.92. In term infants, median REE varied between 57.3 and 67.9 Kcal/kg/d and median RQ increased from 0.63 to 0.84–0.88. Weight gain velocity was slower in term than preterm infants. FMI, assessed in a subset of 15 infants, varied between a median of 1.7 and 1.8 kg/m2 at term age. This low adiposity may be related to poor energy balance, low fat intakes, and low RQ¸ that were frequently recorded in several follow-up periods.
AB - This cohort study describes the evolution of resting energy expenditure (REE), respiratory quotient (RQ), and adiposity in infants recovering from corrective surgery of major congenital gastrointestinal tract anomalies. Energy and macronutrient intakes were assessed. The REE and RQ were assessed by indirect calorimetry, and fat mass index (FMI) was assessed by air displacement plethysmography. Longitudinal variations over time are described. Explanatory models for REE, RQ, and adiposity were obtained by multiple linear regression analysis. Twenty-nine infants were included, 15 born preterm and 14 at term, with median gestational age of 35.3 and 38.1 weeks and birth weight of 2304 g and 2935 g, respectively. In preterm infants, median REE varied between 55.7 and 67.4 Kcal/kg/d and median RQ increased from 0.70 to 0.86–0.92. In term infants, median REE varied between 57.3 and 67.9 Kcal/kg/d and median RQ increased from 0.63 to 0.84–0.88. Weight gain velocity was slower in term than preterm infants. FMI, assessed in a subset of 15 infants, varied between a median of 1.7 and 1.8 kg/m2 at term age. This low adiposity may be related to poor energy balance, low fat intakes, and low RQ¸ that were frequently recorded in several follow-up periods.
KW - Adiposity
KW - Congenital gastrointestinal anomalies
KW - Fat mass index
KW - Infants
KW - Respiratory quotient
KW - Resting energy expenditure
UR - http://www.scopus.com/inward/record.url?scp=85092530768&partnerID=8YFLogxK
U2 - 10.3390/nu12103093
DO - 10.3390/nu12103093
M3 - Article
C2 - 33050623
AN - SCOPUS:85092530768
SN - 1422-8599
VL - 12
SP - 1
EP - 17
JO - Nutrients
JF - Nutrients
IS - 10
M1 - 3093
ER -