Thesis (Ph.D.) - Cairo University - Faculty of Meicine - Department of E.N.T

Background: Hearing impairment and cognitive decline are both common conditions that occur with aging, and are thought to have high comorbidity in the elderly. It causes various emotional reactions that may affect the quality of life in different manners. Its effects can be socially and psychologically devastating, leading to loneliness, isolation, anxiety and depression, and associated with other sensory impairment.objective: To evaluate the relation between mild cognitive impairment and presbycusis in the elderly population and to correlate between hearing loss and the associated central auditory processing disorder.To study the effect of using hearing aids on cognitive function. subjects and methods: Fifty elderly individuals ({u2265}65 years old) with mild and moderate sensorineural hearing loss were included as the patient group and 50 age-matched elderly individuals with mild high frequency sensorineural hearing loss as the control group.All subjects were submitted to full history taking, basic audiological evaluation, behavioral central auditory tests; Speech in Noise Test (SPIN), P300 auditory evoked potential. Both groups were submitted to mini mental state evaluation (MMSE) and Hearing Handicap inventory of elderly questionnaire (HHIE). results:The patient group showed significantly higher scores in speech in noise test, lower P300 amplitude and longer P300 latency.Patients had lower mini mental state evaluation scores and more hearing handicap perception

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