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[Body composition in small for gestational age newborns].
F Taroni1, N Liotto, L Morlacchi
1Institute of Pediatrics and Neonatology, Fondazione IRCCS Ospedale Maggiore Policlinico, Mangiagalli e Regina Elena, University of Milan.
Summary
Small for gestational age preterm infants have higher body fat mass compared to full-term newborns. This altered body composition may increase their risk for metabolic syndrome later in life.
Area of Science:
- Neonatal research
- Pediatric body composition analysis
- Metabolic syndrome risk factors
Background:
- Small for gestational age (SGA) preterm infants face unique developmental challenges.
- Altered body composition in infancy is linked to long-term metabolic health risks.
- Understanding body composition differences is crucial for early intervention.
Purpose of the Study:
- To compare the body composition of SGA preterm infants with SGA full-term newborns at term equivalent age.
- To investigate potential risk factors for altered body composition in SGA preterm infants.
Main Methods:
- A cohort of 120 newborns (67 preterm, 53 full-term) was studied.
- Body composition was assessed using air displacement plethysmography.
- Growth parameters were measured at term equivalent age.
Main Results:
- SGA preterm and full-term infants had similar birth weights.
- SGA preterm infants exhibited significantly higher total body fat mass (14.3%) compared to SGA full-term infants (5.7%).
- Lower gestational age in preterm infants was associated with higher fat mass at term equivalent age.
Conclusions:
- SGA preterm infants are at risk for altered body composition, characterized by increased fat mass.
- This altered composition may predispose them to metabolic syndrome in adulthood.
- Gestational age and early postnatal nutrition are key factors influencing body composition in these infants.
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