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Clinical Archives of Communication Disorders > Volume 7(1); 2022 > Article
Clinical Archives of Communication Disorders 2022;7(1): 1-6. doi: https://doi.org/10.21849/cacd.2022.00647
Differences of laryngeal closure during the swallow between stroke and head and neck cancer survivors
Celia Deckelman1, Ryleigh Caldwell2, Youngsun Kim3, Taeok Park4
1Communication Sciences and Disorders, University of Wisconsin-Madison, Madison, Wisconsin, USA
2Department of Speech, Language, and Hearing Sciences, Indiana University, Bloomington, Indiana, USA
3Communication Sciences and Disorders, Ohio University, Athens OH, USA
4Communication Sciences and Disorders, Illinois State University, Normal, Illinois, USA
Correspondence  Youngsun Kim ,Tel: +7405931407, Fax: +7405930287, Email: kimy2@ohio.edu
Received: December 11, 2021; Revised: April 28, 2022   Accepted: April 28, 2022.  Published online: April 30, 2022.
ABSTRACT
Purpose
The purpose of this study was to examine the difference of two laryngeal closure transition measures: initiation of laryngeal closure (ILC) and laryngeal closure duration (LCD) among stroke survivors, head and neck cancer survivors, and healthy age-matched controls.
Methods
ILC and LCD were determined by analyzing two 5ml thin liquid swallows exhibited by each of the 15 stroke survivors, 15 head and neck cancer survivors, and 15 healthy controls from the videofluoroscopic swallowing examinations (VFSEs). Statistical analyses were made using one-way analysis of variance (ANOVA) using the three groups as independent variables with the statistical level set at p<0.05.
Results
ILC was longer in stroke survivors compared to head and neck survivors and healthy controls; however, these results were only significant compared to controls. Head and neck cancer survivors exhibited significantly longer LCD when compared to healthy controls, but not to stroke survivors.
Conclusions
Differential diagnosis based on swallowing pathophysiology is critical to manage and treat dysphagia in these populations.
Keywords: Stroke, Head and neck cancer, Laryngeal closure, Dysphagia, Swallowing
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