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Breathing pattern during sleep disruptive snoring

K E Bloch1, Y Li, M A Sackner

  • 1Pulmonary Division, University Hospital of Zurich, Switzerland.

The European Respiratory Journal
|March 1, 1997
PubMed
Summary
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Respiratory inductive plethysmography (RIP) nonobtrusively measures breathing during snoring. Distinct ribcage/abdominal motion patterns differentiate simple snoring from sleep-disruptive snoring with arousals.

Area of Science:

  • Respiratory Physiology
  • Sleep Medicine
  • Biomedical Engineering

Background:

  • Snoring is often associated with breathing disturbances.
  • Previous methods for quantifying these disturbances were invasive.
  • Non-invasive methods are needed to study respiratory mechanics during snoring.

Purpose of the Study:

  • To investigate respiratory mechanics during nonapnoeic snoring using respiratory inductive plethysmography (RIP).
  • To differentiate simple snoring from sleep-disruptive snoring associated with arousals.
  • To identify characteristic RIP patterns indicative of breathing disturbances during snoring.

Main Methods:

  • Calibrated respiratory inductive plethysmography (RIP) was used in 10 snorers and 7 healthy non-snorers.
  • RIP recordings were analyzed during non-rapid eye movement (NREM) sleep and wakefulness under various snoring conditions (with and without arousals).

Related Experiment Videos

  • Breathing patterns, including ribcage/abdominal motion and respiratory cycle variations, were compared between groups.

    • Main Results:

    • Snoring was associated with predominant thoracic breathing, ribcage/abdominal asynchrony, and increased inspiratory time compared to non-snorers.
    • Pronounced flow limitation and asynchrony preceded arousals during snoring.
    • Specific coefficients of variation in respiratory cycle time and tidal volume accurately differentiated snoring with and without arousals.

    Conclusions:

    • Respiratory inductive plethysmography (RIP) provides a non-invasive method to assess respiratory mechanics during snoring.
    • Characteristic patterns of ribcage and abdominal motion, analyzed via RIP, can distinguish sleep-disruptive snoring from simple snoring.
    • RIP-based quantitative analysis offers high sensitivity and specificity in differentiating snoring types based on arousal presence.