脳卒中後遺症例の聴覚
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概要
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The aim of this study is to report the results of hearing tests on the patients suffered from cerebral apoplexy. Audiological evaluations were performed on 90 patients. They were divided into two groups; hemiplegia group (72 cases) and aphasia with hemiplegia group (18 cases). The range of age was from twenties to fifties. Various kinds of audiometric tests including pure tone test, recruitment test, TTS test, speech test, filtered speech test, interrupted speech test, binaural summation test and directional hearing test were performed on all patients.The average pure tone loss for the speech frequency range was within 15 dB in a large majority of patients.The results were as follows;A) The recruitment phenomenon was recognized in 5 cases of hemiplegia hemiplegia group and TTS phenomenon was also recognized in only one case of hemiphegia group.It was considered that the phenomena might have no relation to cerebro-vascular accident. B) Speech tests in both groups showed a high incidence of abnormality.C) The abnormal findings by the filtered speech test were presented in 68 cases (94%) of hemiplegia group and 15 cases (83%) of aphasia with hemiplegia.The abnormalities by the interrupted speech test were presented in 58 cases (89%) of hemi-plegia group and 15 cases (83%) of aphasia with hemiplegia group. Mere was no difference of incidence of abnormalities in both tests.D) The abnormal findings by the binaural summation test were less than 40% in both groups. E) The abnormalities by the directional hearing test were not remarkably found in both groups; 8 cases in hemiplegia group and 1 case in aphasia with hemiplegia group. This test was thought not valuable for the topographical diagnosis of the lesions of the cerebral auditory pathway.F) The low discrimination scores in the ear of hemiplegic side appeared in 65% of the hemiplegia group and 83% of the aphasia with hemiplegia group.Therefore the ear of the low discrimination scores and hemiplegic side better agreed in aphasia with hemiplegia group than in hemiplegia group.
- 社団法人 日本耳鼻咽喉科学会の論文