Development and Clinical Application of the Portable System to Evaluate Swallowing Function at Bedside

便携式床旁吞咽功能评估系统的研制及临床应用

• 批准号: 15390589
• 负责人: NOMURA Shuichi
• 金额: $ 7.36万
• 依托单位: Niigata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15390589/
• 关键词: Bedside; Eating and swallowing function; Laryngeal movement; The dependent elderly; Food physicality; 介護食; 嚥下造影検査; 自由摂食運動

The aim of this study was to develop a portable system to evaluate swallowing function noninvasively at bedside. Swallowing was objectively evaluated by measuring its dynamic state from simultaneous recordings of the laryngeal movement and electromyogram (EMG). The laryngeal movement was measured with a pulse transducer for fingertip-level pulse-wave measurements (Piezo-Electric Pulse Transducer) that was fixed to the neck under the right auricula at the same level with the thyroid cartilage. Superficial EMG of suprahyoid muscles was recorded with bipolar surface electrodes to monitor the muscle activities during the swallowing. Simultaneous recordings of the laryngeal movement, EMG, and VFG were performed.To analyze how the physical properties of foods will influence swallowing easiness, swallow movements of six different concentrations of gelatin, agar, and starch were measured by this system.In all the subjects, the laryngeal movement during swallowing showed a "W"-type waveform, which showed good intra-individual repeatability. The swallowed food was stopped for a moment on the epiglottis, as observed by VFG. This stop was also observed in the waveform of the laryngeal movement. The epiglottis, which was closing the trachea, returned to the original position at the end of swallowing, as can be observed by VFG and by a small peak in the waveform of the laryngeal movement. Thus, the swallowing period was divided in two : A (transit time from the base of the tongue to the epiglottis) and B (transit time from the epiglottis to the esophagus). The duration of A increased with the food concentration. However, there was no difference in the duration of B for neither food nor concentration.The duration of bolus passage during swallowing could be measured without VFG, this portable system therefore proved useful to evaluate swallowing function at bedside.

本研究的目的是开发一种便携式系统，在床边无创地评估吞咽功能。通过同时记录喉部运动和肌电图（EMG）来测量吞咽的动态，客观地评估吞咽。喉部运动用一个用于指尖水平脉搏波测量的脉冲换能器（压电脉冲换能器）测量，该换能器固定在右耳廓下与甲状腺软骨同一水平的颈部。采用双极表面电极记录舌骨上肌浅表肌电图，监测吞咽过程中的肌肉活动。同时记录喉部运动、肌电图和VFG。为了分析食物的物理性质如何影响吞咽的容易程度，用该系统测量了六种不同浓度的明胶、琼脂和淀粉的吞咽运动。所有受试者在吞咽过程中喉部运动呈“W”型波形，具有良好的个体内重复性。VFG观察到，吞咽的食物在会厌上停了一会儿。在喉部运动的波形中也观察到这种停止。吞咽结束时，封闭气管的会厌恢复到原来的位置，通过VFG和喉部运动波形的一个小峰可以观察到。因此，吞咽过程分为两个阶段：A（从舌根到会厌的传递时间）和B（从会厌到食道的传递时间）。A的持续时间随着食物浓度的增加而增加。然而，无论是食物还是浓度，B的持续时间都没有差异。在没有VFG的情况下，可以测量吞咽过程中药丸通过的时间，因此这种便携式系统被证明是有用的，用于评估床边的吞咽功能。

项目成果

ベッドサイドで使用できる摂食・嚥下機能評価システム

可在床边使用的进食和吞咽功能评估系统

• 发表时间: 2005
• 期刊: 歯界展望 特別号
• 作者: Akiyama K;Fujisawa T;Ono M;Yoshida Y;Kanyama M;Suzuki K;Kuboki T;中島 三晴;伊藤加代子;野村修一
• 通讯作者: 野村修一

味覚の加齢変化

老化口味变化

• 发表时间: 2004
• 期刊: 総合臨床 53・10
• 作者: 五十嵐敦子

Measurements of several metallic elements and matrix metalloproteinases(MMPs) in saliva from patients with taste disorder

味觉障碍患者唾液中多种金属元素和基质金属蛋白酶（MMP）的测定

• 发表时间: 2005
• 期刊: Chemical Senses 30-2
• 作者: Watanabe M;Asatsuma M;Ikui A;Ikeda M;Yamada Y;Nomura S;Igarashi A
• 通讯作者: Igarashi A

嚥下造影検査における皮膚吸収線量の測定

吞咽对比检查中皮肤吸收剂量的测定

• 发表时间: 2003
• 期刊: 新潟歯学会雑誌 33・2
• 作者: Masumi Asatsuma;Satoshi Ito;Mamoru Watanabe;Hideyuki Takeishi;Shuichi Nomura;Yoko Wada;Masaaki Nakano;Fumitake Gejyo;Atsuko Igarashi;長濱航永
• 通讯作者: 長濱航永

Piezo-Electric Pulse Transducerを用いた嚥下動態の解析

使用压电脉冲传感器分析吞咽动力学

• 发表时间: 2004
• 期刊: 顎機能学会誌 10・2
• 作者: Ejiri S;Toyooka E;Tanaka M;Rezwana BA;Kohno S;Yoshikawa M;Takeo Seki;Yokoyama S;豊里 晃
• 通讯作者: 豊里 晃