Reference values for acoustic rhinometry in children from 4 to 13 years old

Area of Science:

• Pediatric Otolaryngology
• Respiratory Physiology
• Biomedical Engineering

Background:

• Acoustic rhinometry (AR) is increasingly used in pediatric research.
• Existing AR reference data for children is limited, especially for preschool to pre-pubertal age ranges.
• There is a need for comprehensive reference ranges for nasal volumes and minimum cross-sectional areas (MCAs) in healthy children.

Purpose of the Study:

• To establish reference ranges for nasal volumes and MCAs in healthy, non-congested children aged 4-13 years.
• To provide a normative dataset for acoustic rhinometry in a broad pediatric age group.
• To facilitate the interpretation of AR studies in children.

Main Methods:

• Acoustic rhinometry (AR) was performed on 256 primary school children (ages 3.8-13.1 years).
• Measured variables included minimum cross-sectional areas (MCAs) and nasal volumes (Vol0-4, Vol0-5, Vol1-4, Vol2-5).
• Height, weight, atopic status, and respiratory health were recorded.

Main Results:

• Height was the primary predictor for all AR variables; weight also significantly predicted MCAs.
• No association was found between AR variables, sex, atopy, or hay fever.
• Children with current wheeze or asthma exhibited reduced nasal patency.

Conclusions:

• This study presents the most extensive reference material for AR in non-congested, healthy prepubescent children to date.
• The established reference ranges will aid in the evaluation of current and future pediatric AR studies.
• This data is vital for understanding nasal airflow dynamics in children.