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Related Experiment Videos

Rhinomanometric detection rate of rhinoscopically-assessed septal deviations.

P L Huygen1, A B Klaassen, T J de Leeuw

  • 1E.N.T.-Department, University Hospital Nijmegen, The Netherlands.

Rhinology
|September 1, 1992
PubMed
Summary
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Active anterior rhinomanometry identified nasal flow abnormalities in a significant percentage of patients, even those with seemingly normal nasal anatomy. This highlights the utility of rhinomanometry in diagnosing subtle nasal airflow issues.

Area of Science:

  • Otolaryngology
  • Respiratory Physiology
  • Medical Diagnostics

Background:

  • Nasal airflow obstruction is a common complaint.
  • Accurate assessment of nasal patency is crucial for diagnosis and treatment.
  • Septal deviations can significantly impact nasal airflow.

Purpose of the Study:

  • To establish normal nasal airflow values using active anterior rhinomanometry.
  • To evaluate the prevalence of abnormal nasal airflow in patients with varying degrees of septal deviation.
  • To assess the diagnostic utility of rhinomanometry in identifying nasal obstruction.

Main Methods:

  • Normal nasal airflow values were determined using active anterior rhinomanometry at 150 Pa transnasal pressure in 33 healthy subjects.
  • 193 patients with evaluated septum anatomy via rhinoscopy were assessed for nasal airflow abnormalities.

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  • Flow values were categorized as normal or abnormal based on established reference ranges.

    • Main Results:

    • Approximately 25% of rhinoscopically normal patients exhibited abnormal unilateral nasal airflow.
    • Abnormal flow rates increased with the severity of septal deviation, ranging from 35% in moderate deviations to 80% in major deviations.
    • Major septal deviations causing significant airflow obstruction were infrequent in patients presenting with nasal obstruction symptoms.

    Conclusions:

    • Active anterior rhinomanometry is effective in detecting nasal airflow abnormalities not apparent on rhinoscopy.
    • The prevalence of abnormal nasal airflow correlates with the severity of septal deviation.
    • While useful, rhinomanometry's clinical impact for nasal obstruction may be limited by the low prevalence of major contributing septal deviations.