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Updated: Jul 30, 2026

Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models
Published on: March 1, 2015
Swallowing dysfunction related to snoring: a videoradiographic study.
E L Jäghagen1, D Berggren, A Isberg
1Department of Oral and Maxillofacial Radiology, Umeå University, Sweden. Eva.Levring.Jaghagen@odont.umu.se
Habitual snoring is linked to impaired pharyngeal swallowing function, affecting 54% of snorers. This dysfunction involves issues like premature bolus leakage and delayed swallowing reflexes.
Area of Science:
- Otorhinolaryngology
- Neurology
- Gastroenterology
Background:
- Biopsies of soft palatal and oropharyngeal tissues in habitual snorers and obstructive sleep apnea patients reveal neurogenic lesions.
- These lesions may compromise pharyngeal swallowing function due to reduced sensitivity.
Purpose of the Study:
- To investigate the association between snoring and aberrant pharyngeal swallowing function.
- To test the hypothesis that snoring correlates with impaired swallowing.
Main Methods:
- Prospective selection of 41 non-dysphagic habitual snorers with daytime sleepiness and 15 non-snoring controls.
- Videoradiographic examination of swallowing phases (oral and pharyngeal) in lateral and posteroanterior views.
Main Results:
- Snoring patients exhibited deviant pharyngeal swallowing function significantly more often (54%) than non-snoring volunteers (7%).
- Common findings included impaired bolus control, premature pharyngeal leakage, delayed swallowing reflex, pharyngeal residue, and laryngeal penetration.
Conclusions:
- Snoring is associated with subclinical pharyngeal swallowing dysfunction.
- Neurogenic lesions in snorers may underlie this swallowing impairment.
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