Long-term recovery from aphasia:The significance of speech therapy for outpatients with aphasia Yoshitaka Nakagawa 1 1Department of Rehabilitation, Edogawa Hospital Keyword: 失語症 , 長期予後 , 長期経過 , 標準失語症検査 , SLTA , SLTA総合評価法得点 , aphasia , long-term prognosis , long-term assessment of aphasia , Standard Language Test of Aphasia , general scores on Standard Language Test of Aphasia pp.19-28
Published Date 2020/3/15
DOI https://doi.org/10.11477/mf.6001200261
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 In conjunction with our study concerning the time-course analysis of language function in patients with aphasia, we made a broad examination of the following existing reports. We analyzed the long-term follow-up data of 270 right-handed aphasics with left unilateral damage based on the lesion site. We also studied 37 aphasic patients whose general scores on the Standard Language Test of Aphasia (SLTA), an indicator of functional recovery, declined over time, examining functional changes in the various factors affecting the scores. Furthermore, in 121 patients with aphasia who received cognitive-based linguistic rehabilitation for at least 2 years post-onset, we investigated factors that seemed to influence the general scores of SLTA. The results were as follows. 1) Depending on the lesion site and age at onset, recovery of aphasia symptoms greatly varies in its course;however, many aphasic patients show recovery over at least 6 months. 2) Functional restoration of language by therapy is rather fragile. 3) Age at onset, lesion in the left superior temporal gyrus including Wernicke's area, and baseline linguistic abilities including aphasia severity, and both phonological and semantic functions were significant predictors of long-term aphasia outcome. Based on these results, in aphasia rehabilitation it was considered that 1) it was necessary to pay attention to aphasia symptoms that could change over the long-term, and 2) it was desirable to conduct aphasia rehabilitation in hospitals for outpatients.

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