Japanese

Effects of jaw stability on pharyngeal swallow in patients with severe motor and intellectual disabilities Jumpei Fujimoto 1 , Tatsuya Nakamura 2 , Takashige Toyoda 1 , Saori Kishi 1 , Minoru Inada 3 , Akiko Kamiishi 4 1Department of Speech-Language-Hearing Therapy, Shimada Ryoiku Center 2Department of Rehabilitation, Shimada Ryoiku Center Hachioji 3Department of Dentistry, Shimada Ryoiku Center 4Department of Pediatrics, Shimada Ryoiku Center Keyword: 重症心身障害 , 下顎の安定性 , 舌骨 , 嚥下造影検査 , 嚥下障害 , patients with severe motor and intellectual disabilities , jaw stability , hyoid bone , videofluoroscopic examination of swallowing , dysphagia pp.95-103
Published Date 2019/6/15
DOI https://doi.org/10.11477/mf.6001200225
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 This study investigated the effects of jaw stability on pharyngeal swallow by analyzing jaw and hyoid bone movement during swallow in patients with severe motor and intellectual disabilities (SMID). Ten patients with SMID underwent videofluoroscopic examination of swallowing while swallowing 3 to 5 ml of paste food. Five patients have suckling pattern (tongue moves forward and backward) during feeding, and 5 have sucking pattern (tongue moves up and down) during feeding. The range of movement of the jaw and hyoid bone were measured in two directions, horizontal and vertical, and the timing of the onset and termination of movement in each direction was timed using frame-by-frame analysis. The distance of downward and backward movement of the jaw was significantly longer in the suckling group (p=.009). The duration of maximum upward (p=.007) and forward (p=.011) displacement of the hyoid bone was significantly shorter in the suckling group. The results suggest that instability of the jaw shortens the duration of the maximum upward and forward displacement of the hyoid bone.


Copyright © 2019, Japanese Association of Speech-Language-Hearing Therapists. All rights reserved.

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電子版ISSN 印刷版ISSN 1349-5828 日本言語聴覚士協会

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