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Upper airway dysfunction detected by respiratory flow oscillations.

W Vincken, R E Dollfuss, M G Cosio

    European Journal of Respiratory Diseases
    |January 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

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    Fluttering of upper airway structures can cause chronic respiratory symptoms. Identifying rapid flow oscillations on recordings signals this dysfunction, aiding diagnosis and treatment for airflow limitation.

    Area of Science:

    • Pulmonology
    • Respiratory Medicine
    • Medical Diagnostics

    Background:

    • Chronic respiratory symptoms can stem from various causes, including upper airway issues.
    • Flow oscillations on respiratory recordings are not always fully understood.
    • Upper airway dysfunction may contribute to airflow limitation.

    Purpose of the Study:

    • To identify and characterize a specific type of upper airway dysfunction.
    • To correlate flow oscillations with physical upper airway abnormalities.
    • To evaluate the impact of interventions on symptoms and flow rates.

    Main Methods:

    • Analysis of flow-time and flow-volume recordings in patients with chronic respiratory symptoms.
    • Utilizing cinefluoroscopy and fiberoptic endoscopy to visualize upper airway structures.

    Related Experiment Videos

  • Assessing symptom relief and flow rate changes after tracheostomy and helium breathing.

    • Main Results:

    • Three patients exhibited rapid flow oscillations on recordings.
    • Fluttering of lax upper airway structures was confirmed via imaging.
    • One patient experienced dyspnea relief post-tracheostomy; two showed improved flow rates with helium.

    Conclusions:

    • Flow oscillations on recordings indicate potential upper airway dysfunction.
    • Fluttering of upper airway structures should be investigated as a cause of respiratory symptoms.
    • This finding aids in diagnosing and managing airflow limitation.