Deafness. Definition

Medical Definition: deafness

Main symptoms of impaired auditory system peripheral or central level. Distinguish transmission deafness caused by injuries outer or middle ear, such as acute and chronic otitis and its sequelae, and otoespongiosis; perception deafness caused by damage to the inner ear or the auditory pathways, such as presbycusis; ototoxic deafness, vascular, viral, bacterial, noise trauma and Meniere's disease. Is a mixed deafness when the transmission and perception simultaneously.

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