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The normal-weight snorer: polysomnographic study and correlation with upper airway morphological alterations
Daniele Marchioni1, Angelo Ghidini, Stefano Dallari
1Department of Otorhinolaryngology, Polyclinic Hospital of Modena, University of Modena and Reggio Emilia, Modena, Italy.
The Annals of Otology, Rhinology, and Laryngology
|March 11, 2005
Summary
Normal-weight individuals who snore may have obstructive sleep apnea syndrome (OSAS) due to anatomical issues like septal deviation. Thorough investigation is crucial for these patients to detect multiple obstruction sites.
Area of Science:
- Sleep Medicine
- Otorhinolaryngology
- Respiratory Medicine
Background:
- Obesity is a known factor in snoring and obstructive sleep apnea syndrome (OSAS).
- However, OSAS can also occur in normal-weight individuals, necessitating further investigation into underlying causes.
- This study focuses on identifying specific risk factors for OSAS in non-obese snorers.
Purpose of the Study:
- To investigate the prevalence and causes of obstructive sleep apnea syndrome (OSAS) in normal-weight snorers.
- To compare the risk factors for OSAS in normal-weight snorers versus obese snorers.
- To highlight the importance of thorough diagnostic evaluation for normal-weight snorers at risk of OSAS.
Main Methods:
- A diagnostic protocol was applied to a group of 43 normal-weight snorers.
- Müller's maneuver was extensively used to assess airway patency.
- Data from normal-weight snorers were compared with data from 43 obese snorers.
Main Results:
- A significant number of OSAS episodes were detected in normal-weight snorers.
- Anatomical abnormalities, specifically septal deviation and base of tongue hypertrophy, were identified as major risk factors for OSAS in normal-weight snorers.
- Soft palate hypertrophy alone was insufficient to cause sleep disorders in normal-weight individuals, unlike in obese snorers.
Conclusions:
- Normal-weight snorers are at significant risk for developing obstructive sleep apnea syndrome (OSAS).
- Anatomical abnormalities are key contributors to OSAS in normal-weight individuals.
- Comprehensive investigation is essential for normal-weight snorers to identify OSAS and multiple airway obstruction sites.