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KMID : 0614720230660100568
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Journal of Korean Medical Association
2023 Volume.66 No. 10 p.568 ~ p.571
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Association between age-related hearing loss and cognitive decline
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Seo Ji-Won
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Abstract
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Background: Presbycusis, or age-related hearing loss, is a prevalent condition characterized by the gradual deterioration of hearing with age. The resulting impairments in auditory function lead to reduced speech perception in noisy environments and often have a negative impact on cognitive, behavioral, and psychosocial functions in the elderly population.
Current Concepts: The proposed etiological mechanisms linking presbycusis to cognitive decline or dementia include the common-cause hypothesis, cognitive load hypothesis, cascade hypothesis, and overdiagnosis or harbinger hypothesis. Moreover, the challenges posed by the rapidly aging population in several countries, including Korea, highlight the increasing social impact of hearing loss and dementia. Consequently, interventions for hearing rehabilitation, such as the use of hearing aids and implantable hearing devices, have paramount importance in mitigating the adverse effects of hearing loss on cognitive impairment and dementia.
Discussion and Conclusion: The implementation of prevention and rehabilitation programs for hearing loss in the elderly is crucial for alleviating the socioeconomic burden associated with the welfare of the aging population.
However, many economically vulnerable elderly individuals reportedly do not use hearing aids, even though they experience considerable inconvenience resulting from hearing loss, primarily due to inadequate financial support. Therefore, implementing a comprehensive national policy to support hearing aid usage among elderly individuals with moderate hearing loss holds significant potential for reducing their risk of cognitive impairment and dementia.
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KEYWORD
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Presbycusis, Cognitive dysfunction, Dementia, Rehabilitation of hearing impairment
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