Auxological and metabolic study in small for gestational age children during 2 years follow-up

Paola Polo Perucchin1, Cristina Traggiai, Maria Grazia Calevo

  • 1Paediatric Department, University of Genova, IRCCS G. Gaslini, Genoa 16147, Italy.

Insights

This study compared growth and metabolic status in preterm (PT) and full-term (FT) small for gestational age (SGA) babies. While most SGA infants achieved catch-up growth, prematurity combined with intrauterine growth retardation (IUGR) impacted auxological outcomes.

Area of Science:

  • Pediatrics
  • Neonatology
  • Endocrinology

Background:

  • Small for gestational age (SGA) infants present unique auxological and metabolic challenges.
  • Intrauterine growth retardation (IUGR) is a significant factor influencing infant development.
  • Understanding the long-term outcomes for SGA infants is crucial for appropriate clinical management.

Purpose of the Study:

  • To compare the auxological and metabolic status of preterm (PT) and full-term (FT) SGA babies from birth to two years.
  • To investigate the role of IUGR in the auxological and metabolic outcomes of SGA infants.

Main Methods:

  • A cohort of 44 SGA infants (22 FT, 22 PT) was followed for two years with six-monthly assessments.
  • Anthropometric measurements (weight, length) and metabolic markers (glucose, insulin, total cholesterol, triglycerides) were collected.
  • Homeostatic model assessment for insulin resistance (HOMA-IR) was used to evaluate insulin sensitivity.

Main Results:

  • Both PT and FT SGA infants showed significant growth in the first six months, with weight gain slowing in PT infants between 6-12 months.
  • Catch-up growth was observed in 90% of FT and 87% of PT SGA infants by 24 months.
  • Insulin levels and HOMA-IR decreased over time in both groups, particularly between 6-12 months. PT SGA infants with IUGR had smaller size, lower growth velocity, and higher initial insulin/HOMA-IR compared to FT SGA without IUGR.

Conclusions:

  • No significant differences in auxological and metabolic parameters were found between PT and FT SGA infants.
  • Prematurity combined with IUGR is a significant factor influencing auxological outcomes in SGA infants.
  • The timing of auxological follow-up for SGA subjects should consider the presence of prematurity and IUGR.
Abstract