[Longitudinal study of the physical catch-up growth in 84 preterm appropriate for gestational age infants]

Mei-Ling Tong1, Min Zhang, Xia Chi

  • 1Department of Child Health, Maternal and Child Health Hospital, Nanjing Medical University, Nanjing 210004, China. kt99cn@yahoo.com.cn

Insights

Preterm infants show catch-up growth in weight, length, and head circumference during their first year. The most rapid growth occurs in the first three months, with weight catch-up exceeding length catch-up.

Area of Science:

  • Neonatology
  • Pediatric Growth and Development
  • Perinatology

Context:

  • Preterm infants, appropriate for gestational age (AGA), exhibit unique growth patterns post-birth.
  • Understanding catch-up growth is crucial for optimizing long-term health outcomes in this population.

Purpose:

  • To investigate the physical catch-up growth characteristics and growth rhythm in preterm AGA infants.
  • To analyze the velocity and patterns of weight, length, and head circumference catch-up growth.

Summary:

  • Eighty-four preterm AGA newborns (gestational age 28-36 weeks) were monitored for weight, length, and head circumference using Z-scores.
  • Results indicate significant catch-up growth in all measured parameters within the first year.
  • The highest growth velocity was observed in the first three months, with weight catch-up surpassing length catch-up.

Impact:

  • Identifies the critical early period for catch-up growth in preterm infants.
  • Highlights the differential rates of catch-up growth in weight versus length, informing targeted nutritional and developmental support.
  • Provides essential data for pediatricians and neonatologists managing preterm infant care.
Abstract

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