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



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.


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