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Related Experiment Video

Updated: Mar 8, 2026

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Correlation between Subjective Nasal Patency and Intranasal Airflow Distribution.

Kevin P Casey1,2, Azadeh A T Borojeni1,2, Lisa J Koenig3

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Otolaryngology--Head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
|February 1, 2017
PubMed
Summary

Middle nasal airflow, not inferior or superior, strongly correlates with the sensation of nasal patency. This finding is crucial for understanding nasal airway obstruction (NAO) and planning virtual surgeries.

Keywords:
computational fluid dynamics (CFD) simulationsnasal airway obstruction surgerysensation of nasal airflowsubjective nasal patencyvirtual surgery planning

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Area of Science:

  • Otorhinolaryngology
  • Biomedical Engineering
  • Computational Fluid Dynamics

Background:

  • Nasal airway obstruction (NAO) significantly impacts quality of life.
  • Objective measures of nasal airflow sensation are needed for improved diagnosis and surgical planning.

Purpose of the Study:

  • To analyze the relationship between intranasal airflow distribution and subjective nasal patency in healthy individuals and NAO patients.
  • To evaluate intranasal airflow distribution as an objective measure for future NAO virtual surgery planning.

Main Methods:

  • Computational fluid dynamics (CFD) simulations of nasal airflow and mucosal cooling were performed on 3D nasal models from 15 NAO patients and 15 healthy subjects.
  • Subjective nasal patency was assessed using the visual analog scale (VAS) and Nasal Obstruction Symptom Evaluation (NOSE) scores.
  • Regional airflow distribution (inferior, middle, superior) was quantified and correlated with subjective scores using the Pearson correlation coefficient.

Main Results:

  • Healthy subjects exhibited significantly higher middle nasal airflow compared to NAO patients.
  • Subjective nasal patency showed a strong correlation with middle airflow (r = 0.64 for VAS, r = 0.76 for NOSE) but not with inferior or superior airflow.
  • Anterior septal deviations were associated with inferiorly shifted airflow, reduced middle airflow, and decreased mucosal cooling.

Conclusions:

  • Reduced middle intranasal airflow is linked to the sensation of nasal obstruction, potentially due to diminished mucosal cooling in this region.
  • Intranasal airflow distribution, particularly in the middle meatus, is a significant objective correlate of airflow sensation and warrants consideration in NAO management and virtual surgical planning.