Predicting Swallowing Outcomes from Objective Videofluoroscopic Timing and Displacement Measures in Head and Neck Cancer
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ORIGINAL ARTICLE
Predicting Swallowing Outcomes from Objective Videofluoroscopic Timing and Displacement Measures in Head and Neck Cancer Patients Mathew B. Vansant1,3,5 · Lindsey A. Parker1,3 · Andrew J. McWhorter1,3,4 · David Bluoin2 · Melda Kunduk1,3,4 Received: 16 April 2019 / Accepted: 29 January 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Radiation therapy with or without chemotherapy compromises swallowing efficiency and safety in patients with head and neck cancer (HNC). The resulting dysphagia leads to overall morbidity, with altered diets, reduced nutritional intake, reduced quality of life, and potential interruption of curative cancer treatment. Despite well-documented radiation-related changes in swallowing physiology, scarce research exists on the potential clinical value for measurements of swallowing timing and displacement in this population. This study investigated the discriminatory value of quantitative timing and displacement parameters for the Functional Oral Intake Scale and Penetration Aspiration Scale scores using pre- and post-radiation videofluoroscopy data. Swallowtail Software Version 1 (Belldev Medical, Arlington Heights, IL) was used to obtain objective timing and displacement measurements from the pre- and post-radiation videofluoroscopy data for 31 patients who underwent radiation therapy, with or without chemotherapy, for head and neck cancer. The total pharyngeal transit time (BP2) (p
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