ArticlesDetection of aspiration and swallowing disorder in older stroke patients: Simple swallowing provocation test versus water swallowing test☆,☆☆,★
Section snippets
Participants
Twenty-six patients with aspiration pneumonia (11 men, 15 women; mean age ± standard deviation, 72.1 ± 4.1yr; mean body mass index [BMI], 19.4 ± 0.6kg/m2) and 26 controls without aspiration pneumonia (12 men, 14 women; mean age, 69.4 ± 3.9yr; mean BMI, 19.6 ± 0.5kg/m2) participated in the study. All subjects had a previous history of stroke. Varying degrees of cerebral atrophy, lacunar infarction, and old infarction were found in both groups by using cerebral computed tomography and magnetic
Discussion
The present study shows that the water-stimulated swallowing reflex is considerably impaired in patients with aspiration pneumonia when compared with the responses to swallowing provocation in control subjects without aspiration pneumonia. A greater volume of water was necessary to induce the swallowing reflex in patients with aspiration pneumonia than in the control subjects. In the controls, 0.4mL of water was sufficient to elicit swallowing; however, 2mL was insufficient to initiate
Conclusion
Because special equipment is not necessary to perform SPT, and because SPT can be performed without active patient cooperation, SPT should be preferred over WST in the clinical setting.
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Supported by a grant from Mitsui Life Social Welfare Foundation of Japan.
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No commercial party having a direct financial interest in the results of the research supporting this article has or will confer a benefit upon the authors or upon any organization with which the authors are associated.
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Reprint requests to Shinji Teramoto, MD, San-no Hospital, International University of Health & Welfare, 8-5-35 Akasaka, Minato-ku, Tokyo, Japan 107-0052, e-mail: [email protected].