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Cineradiography in closed and open pharyngeal swallow
M Birch-Iensen1, P S Borgström, O Ekberg
1Department of Diagnostic Radiology, Malmö Allmänna Sjukhus, University of Lund, Sweden.
Acta Radiologica (Stockholm, Sweden : 1987)
|July 1, 1988
Summary
The study differentiates between open and closed swallows, finding that open swallowing patterns are linked to more swallowing dysfunction issues. This distinction is crucial for understanding swallowing disorders.
Area of Science:
- Otolaryngology
- Gastroenterology
- Speech-Language Pathology
Background:
- Swallowing involves complex biomechanical actions.
- Two primary patterns, open and closed swallows, are described based on oropharyngeal state.
- Understanding these patterns may clarify swallowing dysfunction.
Purpose of the Study:
- To analyze the distinction between open and closed swallows.
- To correlate swallow type with laryngeal and pharyngeal functions.
- To investigate the clinical significance of swallow patterns in dysphagia.
Main Methods:
- Cineradiologic study.
- 75 patients with dysphagia and 50 asymptomatic volunteers.
- Correlation analysis of swallow patterns with laryngeal and pharyngeal functions.
Main Results:
- Open and closed swallows occurred with similar frequency in both groups.
- Pharyngeal and laryngeal elevation were comparable but delayed in open swallows.
- Open swallows were significantly associated with epiglottic, laryngeal, pharyngeal, and esophageal abnormalities.
Conclusions:
- The open swallow pattern is significantly more prevalent in individuals with dysphagia.
- Swallowing pattern analysis can aid in identifying patients with underlying functional deficits.
- Distinguishing between open and closed swallows offers clinical insights into oropharyngeal swallowing disorders.