Influence of bite force and tongue pressure on oro‐pharyngeal residue in the elderly

Ono, Takahiro; Kumakura, Isami; Arimoto, Mayumi; Hori, Kazuhiro; Dong, Juan; Iwata, Hideyuki; Nakamura, Takashi; Tsuga, Kazuhiro; Akagawa, Yasumasa

doi:10.1111/j.1741-2358.2007.00172.x

Cited by 59 publications

(49 citation statements)

References 45 publications

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“…Several reports have established a relationship between tongue pressure and swallowing dysfunction. Tongue pressure has been associated with the presence of oro-pharyngeal residue using videofluoroscopic examination [9]. In a water-swallowing test, tongue pressure was found to be significantly lower in dysphagic patients than in non-dysphagic patients [10].…”

Section: Introductionmentioning

confidence: 99%

Prediction of Pneumonia in Acute Stroke Patients Using Tongue Pressure Measurements

Nakamori

Hosomi

Ishikawa³

et al. 2016

PLoS ONE

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Swallowing dysfunction caused by stroke is a risk factor for aspiration pneumonia. Tongue pressure measurement is a simple and noninvasive method for evaluating swallowing dysfunction. We have hypothesized that low tongue pressure may be able to predict pneumonia occurrence in acute stroke patients. Tongue pressure was measured using balloon-type equipment in 220 acute stroke patients. The modified Mann Assessment of Swallowing Ability (MASA) score was evaluated independently on the same day. Tongue pressure was measured every week thereafter. An improvement in tongue pressure was observed within the first 2 weeks. Receiver operating curve analysis was performed to determine the ability of tongue pressure to predict modified MASA score <95, which suggests swallowing dysfunction. The optimal cutoff for tongue pressure was 21.6 kPa (χ2 = 45.82, p<0.001, sensitivity 95.9%, specificity 91.8%, area under the curve = 0.97). The tongue pressure was significantly lower in patients with pneumonia than in those without pneumonia. Using a Cox proportional hazard model for pneumonia onset with a cutoff tongue pressure value of 21.6 kPa and adjustment for age, sex, and National Institutes of Health Stroke Scale score at admission, the tongue pressure had additional predictive power for pneumonia onset (hazard ratio, 7.95; 95% confidence interval, 2.09 to 52.11; p = 0.0013). In the group with low tongue pressure, 27 of 95 patients showed improvement of tongue pressure within 2 weeks. Pneumonia occurred frequently in patients without improvement of tongue pressure, but not in patients with improvement (31/68 and 2/27, p<0.001). Tongue pressure is a sensitive indicator for predicting pneumonia occurrence in acute stroke patients.

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Section: Introductionmentioning

confidence: 99%

Prediction of Pneumonia in Acute Stroke Patients Using Tongue Pressure Measurements

Nakamori

Hosomi

Ishikawa³

et al. 2016

PLoS ONE

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“…4A). Because tongue pressure is essential for the movement of a food bolus from the oral cavity into the pharynx [20], declines of MTP resulted in increased Ns in all three diseases (Figs. 3G and 4D).…”

Section: Discussionmentioning

confidence: 98%

Assessment of swallowing in motor neuron disease and Asidan/SCA36 patients with new methods

Morimoto¹,

Yamashita²,

Sato³

et al. 2013

Journal of the Neurological Sciences

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“…A previous study determined age-related decrease in maximal tongue pressure based on the maximal voluntary isometric contraction measured in Japanese subjects of different age groups [37]. It is also reported that decreased maximal voluntarily isometric contraction in older subjects appears to reflect clinical signs of dysphagia [38]: as high maximal voluntary isometric contraction increases, the food residue observed in the oral cavity shows a decrease after masticating at a certain number of times and swallowing once, in the aged [39]. Following extensive research, this device has been developed for clinical use and is expected to be commercially available in the near future.…”

Section: Sensing Of Tongue Movementmentioning

confidence: 99%

Recent Advances in Sensing Oropharyngeal Swallowing Function in Japan

Ono

Hori

Masuda

et al. 2009

Sensors

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Dysphagia (difficulty in swallowing) is an important issue in the elderly because it causes aspiration pneumonia, which is the second largest cause of death in this group. It also causes decline in activities of daily living and quality of life. The oral phase of swallowing has been neglected, despite its importance in the evaluation of dysphagia, because adequate protocols and measuring devices are unavailable. However, recent advances in sensor technology have enabled straightforward, non-invasive measurement of the movement of important swallowing-related organs such as the lips and tongue, as well as the larynx. In this article, we report the present state and possibility of clinical application of such systems developed in Japan.

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Influence of bite force and tongue pressure on oro‐pharyngeal residue in the elderly

Abstract: It is suggested that in the elderly tongue pressure contributed to propulsion of the food bolus from oral cavity into the pharynx, and multiple swallowing contributed to the reduction in the amount of pharyngeal residue.

Cited by 59 publications

References 45 publications

Prediction of Pneumonia in Acute Stroke Patients Using Tongue Pressure Measurements

Prediction of Pneumonia in Acute Stroke Patients Using Tongue Pressure Measurements

Assessment of swallowing in motor neuron disease and Asidan/SCA36 patients with new methods

Recent Advances in Sensing Oropharyngeal Swallowing Function in Japan

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