Effects of viscosity on food transport and breathing-swallow pattern during eating of two-phase food in elderly individuals

• Material Type: 博士論文
• Title: Effects of viscosity on food transport and breathing-swallow pattern during eating of two-phase food in elderly individuals
• Author/Editor: Yamada, Tsuyoshi; 山田, 剛
• Publication Date: 2016-02-05
• Publication Date (W3CDTF): 2016-02-05
• Alternative Title: 高齢者における年齢、食物輸送時の粘性および二相性食物の咀嚼時の呼吸―嚥下機能の相互関係への影響
• Degree grantor/type: 松本歯科大学
• Date Granted: 2016-02-05
• Date Granted (W3CDTF): 2016-02-05
• Dissertation Number: 甲第190号
• Degree Type: 博士（臨床歯学）
• Conferring No. (Dissertation): 甲第190号
• Text Language Code: eng
• Subject Heading: deglutition/physiology; mastication; viscosity; aging; videoendoscopy; dysphagia; food consistency
• Note (General): When eating food containing both liquid and solid phases (two-phase food), the liquid component frequently enters the hypopharynx before swallowing, which may increase the risk of aspiration. The aim of this study was to test whether the initial viscosity of two-phase food would alter pre-swallow food transport and breathing-swallowing coordination in elderly persons. Fiberoptic endoscopy was recorded while 18 healthy young and 19 elderly subjects ate 5 g of steamed rice with 3 ml of blue-dye water. Liquid viscosity was set at three levels by adding a thickening agent (0, 2, and 4 wt%, respectively). We measured the timing of swallow initiation and the respiratory phase at swallow initiation. For thin twophase food, the timing of swallow initiation was not significantly different between young and elderly subjects, but swallows more initiated during inspiration in elderly subjects. For thicker two-phase foods, in contrast, the timing of swallow initiation was delayed in elderly subjects, but swallows usually initiated during expiration in both groups. In elderly individuals, for thin two-phase, swallow initiation is reserved but breathing swallowing coupling was declined. For higher viscosities, swallow initiation is delayed during eating food, but breathing swallowing coordination is not perturbed probably due to slow bolus flow into the hypopharynx. Coordination between swallowing and breathing pattern during eating of food would decrease with aging, which may expose a risk of pre-swallow aspiration.; 2015; identifier:甲第190号
• Persistent ID (NDL): info:ndljp/pid/10211291; https://dl.ndl.go.jp/pid/10211291
• Collection: 障害者向け資料
• Collection (Materials For Handicapped People:1): テキストデータ
• Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文; https://dl.ndl.go.jp/collections/A00014
• Acquisition Basis: 博士論文（自動収集）
• Date Accepted (W3CDTF): 2016-11-02T12:02:18+09:00
• Date Created (W3CDTF): 2016-06-02
• Format (IMT): PDF
• Access Restrictions: 国立国会図書館内限定公開
• Service for the Digitized Contents Transmission Service: 図書館・個人送信対象外
• Availability of remote photoduplication service: 可
• Periodical Title (URI): http://id.nii.ac.jp/1070/00002511/
• Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp