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The changes in strength of oropharyngeal muscles in patients with Alzheimer’s dementia and dysphagia
Author(s) -
Lim Seong Hoon
Publication year - 2020
Publication title -
alzheimer's and dementia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.713
H-Index - 118
eISSN - 1552-5279
pISSN - 1552-5260
DOI - 10.1002/alz.036142
Subject(s) - dementia , dysphagia , clinical dementia rating , tongue , medicine , electromyography , swallowing , physical medicine and rehabilitation , audiology , dentistry , pathology , disease , surgery
Abstract Background Although dysphagia is an important health problem and one of the determinants of quality of life in patients with dementia, the neurophysiologic changes of dysphagia in dementia have not been fully uncovered, yet. we investigated the changes of strength of tongue lip and pharyngeal muscles in patients with Alzheimer’s dementia. Method This study included 20 subjects with Alzheimer’s dementia. In all subjects, clinical assessments consisted of the Iowa Oral Performance Instrument (IOPI) for tongue and lip, surface electromyography (sEMG) with Vital stim plus on suprahyoid muscles, the Mini‐Mental State Examination (MMSE), and Clinical Dementia Rating (CDR) scales. Result All subjects were classified into 3 groups according to severity; CDR1, 2, 3. There was no difference between IOPI and sEMG among all three groups. The values of tongue and lip IOPI from all three dementia groups were significantly lower than values of control. The comparisons for values of tongue and lip IOPI among three dementia group were not different from each other. The sEMG of suprahyoid muscles were not different between all three dementia groups and control. Conclusion These findings would be useful for understandings for patho‐physiology of dementia induced by AD and making occupational therapeutic strategies for oral phase in dysphagia with AD.