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Simulated septal deviations.

R Chaban1, P Cole, K Naito

  • 1Department of Otolaryngology, St Michael's Hospital, Toronto, Ontario, Canada.

Archives of Otolaryngology--Head & Neck Surgery
|April 1, 1988
PubMed
Summary
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Simulated septal deviations in the nasal cavity had minimal impact on airflow resistance when the nasal mucosa was decongested. However, anterior nasal airway obstructions significantly increased resistance, especially with mucosal congestion.

Area of Science:

  • Otolaryngology
  • Rhinology
  • Biomedical Engineering

Background:

  • Nasal septal deviations are common and can affect nasal airflow.
  • Understanding the impact of septal morphology on nasal resistance is crucial for diagnosis and treatment.

Purpose of the Study:

  • To investigate the effects of simulated septal deviations and spurs on nasal airflow resistance.
  • To differentiate the impact of septal changes in the bony cavum versus the anterior nasal airway.

Main Methods:

  • Computer-assisted rhinomanometry was used to measure nasal airflow resistance.
  • Simulated septal deviations and spurs of specific dimensions were introduced into a nasal model.
  • Measurements were taken with both decongested and non-decongested nasal mucosa.

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Main Results:

  • Simulated septal deviations in the decongested bony cavum caused only slight increases in resistance.
  • Non-decongested septal deviations in the bony cavum severely increased resistance.
  • Septal spurs on the maxillary crest had minimal effect on resistance.
  • Anterior septal protrusions significantly increased resistance, particularly when near the nasal floor and with mucosal congestion.

Conclusions:

  • The nasal cavum can accommodate significant septal abnormalities with minimal airflow resistance impact if the mucosa is decongested.
  • The anterior nasal airway is highly sensitive to septal protrusions and mucosal congestion, significantly impacting airflow resistance.