Journal article
Pharyngeal swallowing pressures in the base‐of‐tongue and hypopharynx regions identified with three‐dimensional manometry
The Laryngoscope, Vol.127(9), pp.1989-1995
09/2017
DOI: 10.1002/lary.26483
PMID: 28215047
Abstract
Objectives This study aims to use three‐dimensional (3D) high‐resolution manometry to identify circumferential pressure patterns generated within the asymmetrical base‐of‐tongue and hypopharynx regions of the pharynx during deglutition. Study Design Case series. Methods Radial pressures in the regions of interest were evaluated during swallowing events in 12 healthy subjects using 3D high‐resolution manometry. Results Repeated measures analysis of variance revealed asymmetrical pharyngeal clearance pressures in the base‐of‐tongue and hypopharynx regions during swallowing. A significant main effect of direction on pressure was found at the time point of average maximum pressure (P < 0.001) and for pressure integral (P < 0.001), with pressure primarily generated from the posterior direction. An interaction was noted between direction and location when comparing maximum directional pressures, regardless of time (P =0.045), highlighting the differences in anterior pressure production between regions. In contrast to the high posterior pressures produced in the base‐of‐tongue region, an anteroposterior dominant pressure pattern was observed in the hypopharynx. Pressure waveform complexity in the hypopharynx also is likely attributed to activity in the anterior and posterior directions. Symmetrical pressure generation was observed during intrabolus flow within the hypopharynx. Conclusion This study shows that pressure is asymmetrically generated in the base‐of‐tongue and hypopharynx regions during swallowing of a 10‐mL bolus, reflecting the complex anatomy within the pharynx. Understanding of these complex pressure patterns aids in the interpretation of high‐resolution manometry and can help guide further study in the clinical assessment and treatment of pharyngeal pathology. Level of Evidence 4. Laryngoscope, 127:1989–1995, 2017
Details
- Title: Subtitle
- Pharyngeal swallowing pressures in the base‐of‐tongue and hypopharynx regions identified with three‐dimensional manometry
- Creators
- Sarah P. Rosen - University of Wisconsin–MadisonCorinne A. Jones - University of Wisconsin SystemTimothy M. McCulloch - University of Wisconsin–Madison
- Resource Type
- Journal article
- Publication Details
- The Laryngoscope, Vol.127(9), pp.1989-1995
- DOI
- 10.1002/lary.26483
- PMID
- 28215047
- ISSN
- 0023-852X
- eISSN
- 1531-4995
- Number of pages
- 7
- Grant note
- National Institutes of Health (DC011130; T32 DC009401; T32 GM007507)
- Language
- English
- Date published
- 09/2017
- Academic Unit
- Communication Sciences and Disorders
- Record Identifier
- 9985217035502771
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