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Development of a portable non-invasive swallowing and respiration assessment device.

Shieh WY, Wang CM, Chang CS - Sensors (Basel) (2015)

Bottom Line: All signals are received and processed for swallowing event recognition.A total of 19 volunteers participated in the testing and over 57 measurements were made.The results show that the proposed approach can effectively distinguish the swallowing function in people of different ages and genders.

View Article: PubMed Central - PubMed

Affiliation: Department of Computer Science and Information Engineering, Chang Gung University, No. 259, Wen-Hwa 1st Road, Kwei-Shan, Tao-Yuan 333, Taiwan. wyshieh@mail.cgu.edu.tw.

ABSTRACT
Dysphagia is a condition that happens when a person cannot smoothly swallow food from the mouth to the stomach. It causes malnourishment in patients, or can even cause death due to aspiration pneumonia. Recently, more and more researchers have focused their attention on the importance of swallowing and respiration coordination, and the use of non-invasive assessment systems has become a hot research trend. In this study, we aimed to integrate the timing and pattern monitoring of respiration and swallowing by using a portable and non-invasive approach which can be applied at the bedside in hospitals or institutions, or in a home environment. In this approach, we use a force sensing resistor (FSR) to detect the motions of the thyroid cartilage in the pharyngeal phase. We also use the surface electromyography (sEMG) to detect the contraction of the submental muscle in the oral phase, and a nasal cannula to detect nasal airflow for respiration monitoring during the swallowing process. All signals are received and processed for swallowing event recognition. A total of 19 volunteers participated in the testing and over 57 measurements were made. The results show that the proposed approach can effectively distinguish the swallowing function in people of different ages and genders.

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Related in: MedlinePlus

Signals from three sensors: (a) Submental sEMG; (b) Nasal airflow; and (c) FSR throat belt (the Y-axis preserves the original scaling in the BIOPAC MP100 for each signal).
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sensors-15-12428-f005: Signals from three sensors: (a) Submental sEMG; (b) Nasal airflow; and (c) FSR throat belt (the Y-axis preserves the original scaling in the BIOPAC MP100 for each signal).

Mentions: We use the sEMG sensor to detect the signals from the surface of the submental muscle. Figure 5a,c show the submental sEMG and the FSR signals from a healthy subject swallowing 10 mL of room temperature water. The sEMG signals have been amplified by 1000 times on a scale between −1 Volts and 1 Volts. In the figure we find that the onset time of sEMG covered most of the swallowing process. This is reasonable because when we swallow the bolus, the submental muscle will continue to squeeze the bolus into the top of esophagus. Thus we can use the responses of the submental sEMG to identify the beginning and the ending of the pharyngeal stage in each swallowing test.


Development of a portable non-invasive swallowing and respiration assessment device.

Shieh WY, Wang CM, Chang CS - Sensors (Basel) (2015)

Signals from three sensors: (a) Submental sEMG; (b) Nasal airflow; and (c) FSR throat belt (the Y-axis preserves the original scaling in the BIOPAC MP100 for each signal).
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4507683&req=5

sensors-15-12428-f005: Signals from three sensors: (a) Submental sEMG; (b) Nasal airflow; and (c) FSR throat belt (the Y-axis preserves the original scaling in the BIOPAC MP100 for each signal).
Mentions: We use the sEMG sensor to detect the signals from the surface of the submental muscle. Figure 5a,c show the submental sEMG and the FSR signals from a healthy subject swallowing 10 mL of room temperature water. The sEMG signals have been amplified by 1000 times on a scale between −1 Volts and 1 Volts. In the figure we find that the onset time of sEMG covered most of the swallowing process. This is reasonable because when we swallow the bolus, the submental muscle will continue to squeeze the bolus into the top of esophagus. Thus we can use the responses of the submental sEMG to identify the beginning and the ending of the pharyngeal stage in each swallowing test.

Bottom Line: All signals are received and processed for swallowing event recognition.A total of 19 volunteers participated in the testing and over 57 measurements were made.The results show that the proposed approach can effectively distinguish the swallowing function in people of different ages and genders.

View Article: PubMed Central - PubMed

Affiliation: Department of Computer Science and Information Engineering, Chang Gung University, No. 259, Wen-Hwa 1st Road, Kwei-Shan, Tao-Yuan 333, Taiwan. wyshieh@mail.cgu.edu.tw.

ABSTRACT
Dysphagia is a condition that happens when a person cannot smoothly swallow food from the mouth to the stomach. It causes malnourishment in patients, or can even cause death due to aspiration pneumonia. Recently, more and more researchers have focused their attention on the importance of swallowing and respiration coordination, and the use of non-invasive assessment systems has become a hot research trend. In this study, we aimed to integrate the timing and pattern monitoring of respiration and swallowing by using a portable and non-invasive approach which can be applied at the bedside in hospitals or institutions, or in a home environment. In this approach, we use a force sensing resistor (FSR) to detect the motions of the thyroid cartilage in the pharyngeal phase. We also use the surface electromyography (sEMG) to detect the contraction of the submental muscle in the oral phase, and a nasal cannula to detect nasal airflow for respiration monitoring during the swallowing process. All signals are received and processed for swallowing event recognition. A total of 19 volunteers participated in the testing and over 57 measurements were made. The results show that the proposed approach can effectively distinguish the swallowing function in people of different ages and genders.

Show MeSH
Related in: MedlinePlus