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Related Experiment Videos

The noncycle nose

E B Kern

    Rhinology
    |June 1, 1981
    PubMed
    Summary
    This summary is machine-generated.

    This study characterizes the noncycle nose, identifying three distinct types based on nasal resistance fluctuations. Findings offer new insights into nasal cycle variations and their clinical implications.

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    Area of Science:

    • Otolaryngology
    • Respiratory Physiology

    Background:

    • The nasal cycle, a physiological phenomenon of alternating nasal congestion and decongestion, is well-documented.
    • However, conditions characterized by a lack of this cycle, termed the noncycle nose, remain poorly understood.

    Purpose of the Study:

    • To characterize the noncycle nose using objective measurements.
    • To classify different types of noncyclicity based on nasal resistance patterns.

    Main Methods:

    • Rhinomanometry was employed using a mask flowmeter technique.
    • Nasal resistance values were recorded for 50 subjects, with 14 identified as having a noncycle nose and 36 serving as controls.

    Main Results:

    • Three distinct categories of the noncycle nose were identified: Type 1 (no fluctuation on either side), Type 2 (fluctuation on one side, none on the other), and Type 3 (fluctuation on both sides without dominance reversal).

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  • This study provides the first detailed characterization and subtyping of the noncycle nose.

    • Conclusions:

    • The noncycle nose can be objectively classified into three types based on nasal resistance patterns.
    • These findings enhance our understanding of nasal physiology and may inform clinical assessments of nasal airflow obstruction.