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Cyclic alternating pattern sequences in non-apneic snorers with and without nasal dilation
M B Scharf1, M D McDannold, N T Zaretsky
1Center for Research in Sleep Disorders, Inc., Cincinnati, OH 45246, USA.
Ear, Nose, & Throat Journal
|September 1, 1996
Summary
External nasal dilation improved sleep quality for mild snorers without obstructive sleep apnea. It significantly reduced cyclic alternating pattern sequences (CAPS), indicating less arousal instability during sleep.
Area of Science:
- Sleep Medicine
- Respiratory Physiology
Background:
- Snoring is common in mild cases and can disrupt sleep quality.
- External nasal dilators are used to improve nasal airflow.
- The impact of nasal dilators on sleep fragmentation and arousal instability requires further investigation.
Purpose of the Study:
- To polysomnographically evaluate the effects of external nasal dilation on sleep quality in mild snorers.
- To assess changes in sleep fragmentation and cyclic alternating pattern sequences (CAPS) rates with and without nasal dilation.
Main Methods:
- A two-night, open-label, one-way crossover polysomnographic study was conducted.
- Nine mild snorers, without clinically significant obstructive sleep apnea, participated.
- Sleep data was collected with and without the use of an external nasal dilator.
Main Results:
- Cyclic alternating pattern sequences (CAPS) rates were significantly lower with nasal dilation (28.4%) compared to without (37.9%).
- External nasal dilation demonstrated a reduction in arousal instability.
Conclusions:
- External nasal dilation is effective in reducing arousal instability in snorers without obstructive sleep apnea.
- Nasal dilation may improve sleep quality by decreasing sleep fragmentation.