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Functional Electrical Stimulation for Pharyngeal Dysphagia : A Feasibility Study Hiroaki Kuno 1 , Toshiyasu Yamamoto 1 , Yoichiro Aoyagi 2 , Akio Tsubahara 2 1Department of Intelligent Mechanical Engineering, Okayama University of Science 2Department of Rehabilitation Medicine, Kawasaki Medical School Keyword: 嚥下障害(dysphagia) , 機能的電気刺激(functional electrical stimulation:FES) , 表面電極(surface electrode) , 喉頭挙上(laryngeal elevation) pp.867-873
Published Date 2010/12/18
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Abstract : In this study, we investigated a surface electrode stimulation method to support laryngeal elevation in patients with pharyngeal dysphagia, from the viewpoint of functional electric stimulation (FES). Informed consent was obtained from 15 healthy men and 4 patients with pharyngeal dysphagia. Digastric and stylohyoid muscles were stimulated by silver-textile surface electrodes covering the muscle belly. Laryngeal elevation by the electrical stimulation (ES) during liquid (water, 3ml) swallowing movement was measured by digital video camera. The laryngeal elevation trajectory demonstrated a hysteresis loop. The elevation distance of the larynx increased with a rise of stimulus strength. Laryngeal elevation by ES was 76.0% in the normal subjects and 86.6% in patients when measured during liquid swallowing. Applying FES for laryngeal elevation may assist in improving the swallowing reflex.


Copyright © 2010, The Japanese Association of Rehabilitation Medicine. All rights reserved.

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電子版ISSN 印刷版ISSN 1881-3526 日本リハビリテーション医学会

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