Sounds of swallowing following total laryngectomy |
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| Authors: | Sandra L. Hamlet Ph.D. Robin L. Patterson M.A. Susan M. Fleming Ph.D. Lewis A. Jones M.D. |
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| Affiliation: | (1) Department of Otolaryngology, Wayne State University, 48201 Detroit, Michigan, USA;(2) Speech Pathology, Harper Hospital, Detroit, Michigan, USA;(3) Department of Radiology, Harper Hospital, Detroit, Michigan, USA |
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| Abstract: | Accelerometer transduced sounds of swallowing in total laryngectomees did not show acoustical differences for liquid vs paste swallows, as are found in normals. Compared with normal swallows, tongue propulsion of the bolus in laryngectomee swallows occurred closer in time to a distinctive spectral change associated with bolus flow into the esophagus. Interpretation stressed the lack of mechanical traction from laryngeal elevation contributing to pharyngoesophageal sphincter opening, and the increased role of tongue propulsion in laryngectomee swallows. Supported by grant no. CA 43838 from the National Cancer Institute |
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| Keywords: | Laryngectomy Esophagus Swallowing sounds Deglutition Deglutition disorders |
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