Growth curves: how to best measure growth of the preterm infant

Area of Science:

• Neonatalogy
• Pediatric Growth and Development
• Anthropometry

Background:

• Birth weight is a key infant evaluation metric, typically compared against standard growth curves for full-term infants.
• Existing growth assessment methods for preterm infants are limited due to factors like unknown causes of premature birth and uncertain gestational age.
• Intrauterine growth curves, while used, are derived from cross-sectional data of premature infants and do not represent normal growth conditions.

Purpose of the Study:

• To address the limitations in evaluating preterm infants by establishing normative growth curves.
• To create growth references specifically for healthy preterm neonates.
• To provide a more accurate tool for assessing infant development post-birth.

Main Methods:

• The study highlights the need for developing new growth curves based on healthy preterm infants.
• It emphasizes the inadequacy of current cross-sectional intrauterine growth curves.
• The approach requires periodic updates to reflect contemporary health trends.

Main Results:

• Current standard growth curves are not well-suited for preterm infants.
• Intrauterine growth curves lack representation of normal growth.
• There is a clear need for normative growth data derived from healthy preterm populations.

Conclusions:

• Normative growth curves derived from healthy preterm infants are essential for accurate neonatal assessment.
• These new curves will improve the evaluation of infants born prematurely.
• Regular updates are recommended to maintain relevance with changing population health and maternal characteristics.