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Snoring, sleep apnoea and swallowing dysfunction: a videoradiographic study.
E Levring Jäghagen1, K A Franklin, A Isberg
1Department of Odontology/Oral and Maxillofacial Radiology, Ume University, Ume, Sweden. Eva.Levring.Jaghagen@odont.umu.se
Dento Maxillo Facial Radiology
|January 8, 2004
Summary
Snoring may lead to subclinical pharyngeal swallowing dysfunction, regardless of sleep apnea severity. This condition affects over half of snoring individuals, highlighting a significant risk independent of sleep apnea.
Area of Science:
- Otolaryngology
- Sleep Medicine
- Gastroenterology
Background:
- Snoring is linked to subclinical pharyngeal swallowing dysfunction, potentially due to vibration-induced trauma.
- Negative intrathoracic pressure during apnea can cause pharyngeal and velum stretching.
Purpose of the Study:
- To compare the frequency of subclinical pharyngeal swallowing dysfunction in patients with severe sleep apnea versus snoring patients and non-snoring controls.
Main Methods:
- Videoradiography assessed oral and pharyngeal swallowing function in 80 snoring patients and 15 non-snoring controls.
- Overnight sleep apnea recordings determined the apnea-hypopnea index (AHI).
- Patients with dysphagia were excluded.
Main Results:
- Pharyngeal swallowing dysfunction was found in 52% of snoring patients versus 7% of controls.
- Dysfunction prevalence was similar across different AHI severity groups in snoring patients.
- No significant difference in dysfunction frequency was noted between snoring patients with varying AHI levels.
Conclusions:
- Snoring patients have an elevated risk of developing subclinical pharyngeal swallowing dysfunction.
- This risk appears independent of the presence or severity of sleep apnea.
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