Comparison of pharyngoesophageal segment biomechanics between persons with total laryngectomy with and without dysphagia using semg: a multicentric swallow study

Raj, Harsha G and Aithal, Venkataraja U and Guddattu, Vasudeva (2020) Comparison of pharyngoesophageal segment biomechanics between persons with total laryngectomy with and without dysphagia using semg: a multicentric swallow study. Dysphagia, 35 (5). pp. 843-852. ISSN 0179-051X

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Abstract

Total laryngectomy (TL) is the surgical treatment option for advanced stage of laryngeal cancer, involving the removal of larynx along with several muscles attached to it. Several anatomical changes occur following the surgery which will in turn afect the swallowing mechanism. The severing of the cricopharyngeus muscle, which is an important muscle of the pharyngoesophageal segment (PES), may lead to dysphagia. Several other causes have also been explained in the literature. Several invasive instruments have been used to identify dysphagia in this population. The present study aimed to identify the diferences in the biomechanics of the PES during dry and wet swallow tasks in persons with TL with and without dysphagia. Amplitude and duration of movement of PES was analysed using a non-invasive instrumental method surface electromyography. The results indicate that amplitude of PES movement was signifcantly higher in dysphagic group for solids and semisolids. A signifcantly longer duration was observed for solid consistency for dysphagic group when compared to non-dysphagic group. sEMG evidences suggestive of diferences in amplitude and duration between the TL with and without dysphagia groups. Findings also revealed that TL with dysphagia group require more efort to swallow solids and semisolid consistencies when compared to the efort exerted by them during liquid and dry swallow.

Item Type: Article
Uncontrolled Keywords: Surface electromyography ; Total laryngectomy ; Dysphagia ; Deglutition problems ;Pharyngoesophageal segment ; Biomechanics.
Subjects: Allied Health > MCOAHS Manipal > Speech and Hearing
Departments at MU > Statistics
Depositing User: KMC Library
Date Deposited: 15 Oct 2020 04:20
Last Modified: 15 Oct 2020 04:20
URI: http://eprints.manipal.edu/id/eprint/155879

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