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傳音性聽力喪失對聽性腦幹反應值判讀的影響-病例報告

Effects of Conductive Hearing Loss on the Interpretation of ABR Results - Case Report

摘要


聽性腦幹反應(ABR)於耳蝸後病灶,例如聽神經瘤的診斷極具靈敏性及特異性。但是臨床操作上,諸多因素會影響其檢查結果。例如刺激音的種類,刺激音的強度受測者聽力喪失的種類及程度,將會仲ABR的鑑別診斷價值降低。本病例報告中耳病灶(聽小骨硬化症)傳音性聽力喪失對ABR各潛時的影響,並供大家參考。(中耳醫誌 1997;32:430-433)

並列摘要


Although auditory brainstem response (ABR)is more sensitive and specific in determining retrocochlear lesions, there are several factors affecting ABR waveforms, such as polarity, intensity of click stimulus, or the subject’s age or degree and type of hearing loss. Here, we present a middle ear lesion (otosclerosis)deliberate effects of conductive hearing loss on the interpretation of ABR results.

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