Outcomes of small for gestational age infants born at <27 weeks' gestation

Lilia C De Jesus1, Athina Pappas, Seetha Shankaran

  • 1Department of Pediatrics, Wayne State University, Detroit, MI, USA.

The Journal of Pediatrics
|February 19, 2013
PubMed

Insights

Small for gestational age (SGA) infants born extremely preterm face higher risks of death, growth problems, and neurodevelopmental issues. These findings highlight the critical need for close monitoring and intervention for these vulnerable infants.

Area of Science:

  • Neonatalogy
  • Perinatal Medicine
  • Developmental Pediatrics

Background:

  • Infants born small for gestational age (SGA) at extremely preterm gestations (<27 weeks) represent a vulnerable population.
  • Understanding the long-term outcomes of SGA infants is crucial for optimizing their care.
  • Previous studies have varied in their focus and follow-up durations.

Purpose of the Study:

  • To investigate the association between SGA status and adverse outcomes in infants born before 27 weeks gestational age.
  • To assess risks for mortality, morbidity, growth, and neurodevelopmental impairment at 18-22 months corrected age.
  • To compare outcomes between SGA and non-SGA infants in this extremely preterm cohort.

Main Methods:

  • Retrospective cohort study utilizing data from the NICHD Neonatal Research Network.
  • Inclusion of infants born <27 weeks gestational age between January 2006 and July 2008.
  • Definition of SGA based on birth weight <10th percentile for gestational age (Olsen curves); neurodevelopmental impairment defined by composite criteria.

Main Results:

  • The study included 385 SGA infants and 2586 non-SGA infants.
  • SGA infants exhibited higher mortality rates and increased likelihood of postnatal growth failure, prolonged mechanical ventilation, and postnatal steroid use.
  • SGA status was significantly associated with an increased risk of death or neurodevelopmental impairment (OR, 3.91; P < .001).

Conclusions:

  • Small for gestational age status in extremely preterm infants (<27 weeks GA) is linked to adverse outcomes.
  • These outcomes include increased mortality, growth failure, and neurodevelopmental impairment at 18-22 months corrected age.
  • SGA infants also showed a higher likelihood of requiring postnatal steroid therapy.
Abstract

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