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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
PubMed
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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:

Related Experiment Videos

  • 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.