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長期未接受介入的單側聽力損失成人佩戴不同輔具之效益評估:個案報告

The Outcome Evaluation of Different Hearing Devices in A Long-Term Untreated Unilateral Hearing Loss Adult-Case Study

Abstracts


全面新生兒聽力篩檢普及前,單側聽力損失者通常在年齡較晚才被發現,且發現後專業人員也不會積極建議佩戴聽覺輔具,因此社會中有許多長期未經輔具介入的成人單側聽損者。單側聽損會導致聲源辨識、噪音環境下聆聽困難以及聽覺剝奪等問題。本研究之目的是藉由一名單側傳導性聽損個案,佩戴氣導、骨導及對側跨傳式等三款不同的助聽器,分別進行聲源定位測驗、噪音下言語辨識及主觀問卷評量之助聽效益。研究結果顯示,以骨導助聽器效果最佳,氣導助聽器次之,對側跨傳式助聽器第三。本文認為長期未介入的單側傳導性聽損者,即使可能存在因長期聽覺剝奪而產生聽覺中樞側化性改變的情況下,仍有可能從骨導或氣導式的助聽器獲得益處。

Parallel abstracts


Before the universal newborn hearing screening program launched, children with unilateral hearing loss were often identified at an older age. Hearing devices and any kind of intervention were also not recommended. Thus, there are a lot of long-term untreated unilateral hearing loss adults in society. Unilateral hearing loss can cause problems like: difficulty in localizing sound sources, difficulty in listening to noise, and hearing deprivation on the hearing loss side. The purpose of this study was to evaluate the outcomes of three hearing devices: air conduction hearing aid, bone-anchored hearing aid (BAHA) with soft-band, and contralateral routing of signals (CROS) on a conductive unilateral hearing loss adult. The ability of sound localization, monosyllabic word recognition in noise, spondee words recognition in noise, and subjective questionnaires were assessed and compared. The result of this study showed that BAHA provided the best outcomes in overall test conditions, while followed by air conduction hearing aid and then CROS. In conclusion, although the lateralization of the central auditory pathway may be changed by long-term hearing deprivation, a long-term untreated conductive unilateral hearing loss adult can still benefit from an air conduction or bone conduction hearing device.

References


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Augustine, A. M., Chrysolyte, S. B., Thenmozhi, K., & Rupa, V. (2013). Assessment of auditory and psychosocial handicap associated with unilateral hearing loss among Indian patients. Indian Journal of Otolaryngology and Head and Neck Surgery: Official Publication of the Association of Otolaryngologists of India, 65, 120-125. doi:10.1007/s12070-012-0586-6
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