A longitudinal study of nasal airway size from age 9 to age 13

Area of Science:

• Pediatric Otolaryngology
• Respiratory Physiology
• Human Growth and Development

Background:

• Defining normal nasal breathing requires reference values for nasal airway size in children.
• Previous studies often rely on cross-sectional data, potentially missing longitudinal changes.

Purpose of the Study:

• To longitudinally examine changes in nasal airway size in children from age 9 to 13.
• To establish reference values for nasal airway dimensions during pre-adolescence.

Main Methods:

• Utilized the pressure-flow technique to measure minimum nasal cross-sectional areas.
• Collected data from 82 children at 1-year intervals over a 5-year period.

Main Results:

• A statistically significant effect of age on nasal airway size was observed (p<0.001).
• Mean nasal size increased from 0.4 cm² to 0.5 cm², with some individual decreases noted between ages 9 and 13.
• Gender did not show a significant effect on nasal airway size.

Conclusions:

• Nasal airway size in children undergoes significant changes between ages 9 and 13.
• Adult nasal airway size may be achieved earlier than suggested by prior cross-sectional studies.
• Longitudinal data provide crucial insights into pediatric nasal development.