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Chronic obstructive airflow disease and sleep studies

C Guilleminault, J Cummiskey, J Motta

    The American Review of Respiratory Disease
    |September 1, 1980
    PubMed
    Summary
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    Sleep disturbances in chronic obstructive airflow disease significantly impact oxygenation and hemodynamics. Obstructive respiratory events are common, and oxygen therapy may be detrimental, while tracheostomy can improve blood gases.

    Area of Science:

    • Pulmonary Medicine
    • Sleep Medicine
    • Cardiovascular Physiology

    Background:

    • Chronic obstructive airflow disease (COAD) frequently co-occurs with excessive daytime somnolence.
    • Sleep-related respiratory abnormalities are common in COAD patients and can affect physiological parameters.
    • Understanding these sleep-related issues is crucial for managing COAD and its associated symptoms.

    Purpose of the Study:

    • To evaluate respiratory and sleep variables in patients with COAD during sleep.
    • To investigate the impact of sleep stages and respiratory events on oxygenation.
    • To assess the effects of oxygen administration and tracheostomy on hemodynamics and blood gases.

    Main Methods:

    • Noninvasive monitoring of respiratory and sleep variables in 26 COAD patients.

    Related Experiment Videos

  • Extensive evaluations including esophageal pressure, nocturnal hemodynamics (systemic and pulmonary pressures).
  • Controlled oxygen administration and post-tracheostomy restudies.

    • Main Results:

    • Sleep stage and abnormal respiratory event type significantly affected oxygenation levels.
    • 92% of abnormal respiratory events during sleep had an obstructive component.
    • Apneic events may influence systemic and pulmonary arterial pressures; oxygen therapy can be detrimental; tracheostomy improved daytime blood gases in some patients.

    Conclusions:

    • Sleep-related breathing abnormalities, particularly obstructive events, are prevalent in COAD and impact oxygenation and hemodynamics.
    • Oxygen therapy requires careful consideration in sleeping COAD patients.
    • Tracheostomy may offer benefits for daytime blood gas levels in select COAD patients, though the mechanism of daytime somnolence remains multifactorial.