CSD-2259 Chapter Notes - Chapter 13.3: Conductive Hearing Loss, Sensorineural Hearing Loss, Otitis Media
25 Nov 2016
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Document Summary
When sound is not conducted efficiently through the outer or middle ear, the result is an attenuation or reduction of the sound heard. This attenuation of sound is the defining characteristic of a conductive hearing loss. Children who have a conductive hearing loss, whether it is temporary or persistent, experience this attenuation of loudness. Bone conduction- transmits sound vibrations along the bones of the skull. Conductive hearing loss generally causes a slight to moderate loss of hearing in one or both ears. Impact is not severe because some sounds still travel to the auditory processing system of the brain via bone conduction. Wax buildup can occur frequently and block sound transmission. Malformations of the outer and middle ear can cause conductive hearing loss. Some children are born with a malformed or absent external auditory canal or a congenital blockage of the ear canal.
