Superior and Anterior Hyoid Displacement During Swallowing in Non-Dysphagic Individuals

AbstractThe Dynamic Swallow Study (DSS) is a methodology used to objectively and quantitatively assess swallowing kinematics during Videofluoroscopic Swallow Studies (VFSS). No DSS normative data exist delineating superior and anterior hyoid displacement (Hsup andHant, respectively), nor the ratio betweenHsup andHant (SAratio). The aims of this study were to (1) establish normative data forHsup,Hant, and SAratio and (2) assess the effects of age, sex, and bolus size on these measures in non-dysphagic patients, within the context of DSS. VFSSs were reviewed for consecutive elderly ( ≥ 65 years) and non-elderly (<  65 years) male and female non-dysphagic patients. Measurements ofHsup,Hant, and SAratio were made using a novel measurement methodology within the context of the Dynamic ...

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