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Related Experiment Videos

The nasal valve: a physiological and clinical study.

A S Jones1, R G Wight, J C Stevens

  • 1Department of Otolaryngology, Royal Hallamshire Hospital, Sheffield.

The Journal of Laryngology and Otology
|December 1, 1988
PubMed
Summary

Nasal resistance is highest near the pyriform aperture. Radical inferior turbinate trimming reduced obstruction sensation, unlike anterior trimming, confirming this area

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Area of Science:

  • Otolaryngology
  • Rhinology
  • Nasal Physiology

Background:

  • Nasal airflow resistance is a critical factor in nasal function.
  • Identifying the precise location of nasal resistance is essential for effective surgical interventions.

Purpose of the Study:

  • To determine the nasal resistance profile using pressure gradient studies.
  • To evaluate the efficacy of different inferior turbinate trimming techniques in reducing nasal resistance and obstruction.

Main Methods:

  • Nasal pressure gradient studies were conducted on 15 subjects to map airflow resistance.
  • 18 patients underwent either radical or anterior inferior turbinate trimming.
  • Nasal resistance and sensation of obstruction were assessed post-operatively.

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Main Results:

  • Seventy-nine percent of nasal resistance occurred within the anterior 2.8 cm of the nasal cavity, primarily around the pyriform aperture.
  • Both radical and anterior inferior turbinate trimming significantly reduced nasal resistance.
  • Only radical trimming of the inferior turbinates led to a significant reduction in the sensation of nasal obstruction.

Conclusions:

  • The pyriform aperture region is the primary site of nasal airflow resistance.
  • Radical inferior turbinate trimming is more effective than anterior trimming in alleviating the sensation of nasal obstruction.