소음환경에서 Open-Set Speech Perception에서의  잔존청력 정도에 따른 Bimodal Hearing의 효과

임은정; 이규엽; 김이혁; 신창민; 윤성재; 박지현; 이상흔

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자료유형: 학술저널

저자정보: 임은정 이규엽 김이혁 신창민 윤성재 박지현 이상흔

저널정보: 대한이비인후과학회 대한이비인후-두경부외과학회지 대한이비인후과학회지 두경부외과학 제52권 제1호

발행연도: 2009.1

수록면: 29 - 35 (7page)

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연구배경

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Background and Objectives：In this study, we evaluated the effect of bimodal hearing in the speech perception test and the increasing level of bimodal hearing over cochlear implantation in speech perception score regarding residual hearing. Subjects and Method：Nineteen prelingually deaf patients, who had used bimodal hearing over a period of 8 months, were divided in two groups in accordance to their low frequency residual hearing. The children were tested in open-set speech perception under +10 SNR and +20 SNR. The scores of bimodal hearing and unilateral cochlear implantation were compared by the Wilcoxon signed-rank test. Also, the increased level of speech perception scores of bimodal hearing over cochlear implantation alone were calculated using the formula, [bimodal score (%) - unilateral cochlear implantation (%)], and was compared between groups. Results：In pure tone audiometry under silent condition, the result of bimodal hearing was similar to unilateral cochlear implantation in magnitude in both groups. Under the noisy condition, both groups had better result in bimodal hearing in terms of speech perception. Also, the increased level was higher in bimodal hearing over unilateral cochlear implantation in the better residual hearing group. However, since the sample size was small enough, it is considered that there was no statistical significance. Conclusion：Cochlear implanted patients with residual hearing are expected to get better speech perception in noisy environment with bimodal hearing regardless of the level of residual hearing.

#인공와우·보청기·어음인지·두 가지 방식의 양이청취 #Cochlear implants·Hearing aids·Speech perception·Bimodal hearing

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