A study on differences in lung function development and longitudinal patterns between preterm infants of different gestational ages and term infants - Report - MDSpire

A study on differences in lung function development and longitudinal patterns between preterm infants of different gestational ages and term infants

  • By

  • Rongjie Chen

  • Xiao Liu

  • Zhe Xu

  • June 23, 2026

  • 0 min

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Clinical Report: Exploring Variations in Lung Function Development

Overview

This study investigates lung function development in preterm infants of varying gestational ages compared to term infants. It highlights significant differences in tidal volume and small airway function.

Background

Preterm infants are at an increased risk for long-term respiratory diseases due to incomplete lung development. Understanding lung function trajectories in this population is important.

Data Highlights

Gestational Age GroupTidal Volume (VT) at BaselineTEF50 at 6 Months
< 32 weeks20.4 + 4.6 mL84.2 + 17.6 mL/s
≥ 37 weeks24.6 + 3.1 mL75.1 + 19.7 mL/s

Key Findings

  • Lower gestational age correlates with reduced tidal volume (VT) and increased respiratory rate (RR).
  • At 3 months, infants < 32 weeks had higher VT compared to those 34–36 + 6 weeks.
  • Each additional week of gestational age increased VT by 0.15 mL/month.
  • Maternal gestational diabetes accelerated VT growth by 1.04 mL/month.
  • Extremely preterm infants (< 32 weeks) showed delayed small airway function at 6 months.

Clinical Implications

Understanding the impact of gestational age and birth weight on lung function can guide clinical follow-up strategies.

Conclusion

The study highlights the importance of gestational age and perinatal factors in lung function development among preterm infants.

Related Resources & Content

  1. Pediatric Cardiology, Assessing Lung Function in Fontan Patients Over a Decade: Does the Fontan Circulation Hinder Pulmonary Development?, 2023
  2. Pediatric Cardiology, Assessment of Diastolic Function in Both Ventricles of Preterm Infants During the Initial Week After Birth, 2025
  3. The Journal of Clinical Endocrinology & Metabolism, Growth Patterns in Preterm and Low Birth Weight Full-Term Children from Birth to Preschool: A National Analysis, 2025
  4. Outpatient Respiratory Management of Infants, Children, and Adolescents with Post-Prematurity Respiratory Disease: An Official American Thoracic Society Clinical Practice Guideline, 2022
  5. Frontiers in Pediatrics — Risk factors for prolonged respiratory support in late preterm infants: a LASSO-Cox regression analysis
  6. Determinants of declining lung function trajectories from childhood to adulthood after preterm birth
  7. Lung volumes, gas transfer and oscillometry after preterm birth: systematic review and meta-analysis
  8. Outpatient Respiratory Management of Infants, Children, and Adolescents with Post-Prematurity Respiratory Disease: An Official American Thoracic Society Clinical Practice Guideline | American Journal of Respiratory and Critical Care Medicine

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