Growth and neurodevelopmental outcome of VLBW infants at 1 year corrected age

M Modi1, S Saluja, N Kler

  • 1Department of Neonatology, Center for Child Health, Sir Ganga Ram Hospital, New Delhi. drmanojmodi@gmail.com

Indian Pediatrics
|December 21, 2012
PubMed

Insights

Very low birth weight (VLBW) infants experience growth faltering in the NICU but show catch-up growth later. However, VLBW infants lag behind normal birth weight (NBW) infants in physical growth and neurodevelopment at one year.

Area of Science:

  • Neonatalogy
  • Pediatric Growth and Development
  • Neurodevelopmental Pediatrics

Background:

  • Infant growth and neurodevelopment are critical indicators of long-term health.
  • Very low birth weight (VLBW) infants face unique challenges compared to normal birth weight (NBW) infants.
  • Understanding the trajectory of VLBW infant development is essential for timely interventions.

Purpose of the Study:

  • To compare the growth and neurodevelopmental outcomes of VLBW infants with NBW infants.
  • To track anthropometric measurements and developmental quotients (DQ) up to 12 months corrected age.
  • To identify growth patterns and developmental differences between VLBW and NBW infants.

Main Methods:

  • A prospective cohort study was conducted in a tertiary care neonatal unit in northern India.
  • 37 VLBW and 35 NBW infants were enrolled between January 2007 and December 2007.
  • Anthropometric measurements (Z-scores) and DQ were assessed serially from birth to 12 months corrected age.

Main Results:

  • VLBW infants showed a significant drop in Z-scores for weight, length, and head circumference (HC) by discharge.
  • Catch-up growth was observed, but VLBW infants had significantly lower Z-scores for weight, length, and HC at 12 months corrected age compared to NBW infants.
  • VLBW infants exhibited a significantly lower DQ at 12 months corrected age (91.5±7.8) than NBW infants (97.5±5.3).

Conclusions:

  • VLBW infants experience growth faltering during NICU stay, followed by catch-up growth in infancy.
  • Despite catch-up, VLBW infants demonstrate persistent deficits in physical growth and neurodevelopment at one year corrected age compared to NBW infants.
  • These findings highlight the need for continued monitoring and support for VLBW infants' long-term development.
Abstract