In a patient with sensorineural hearing loss, how would the…
In a patient with sensorineural hearing loss, how would the absence of the cochlear microphonic (CM) component and the normal presence of the summating potential (SP) and action potential (AP) on ECochG inform the differential diagnosis regarding cochlear function? NOTE: You must determine whether the hearing loss is primarily sensory or neural, and which specific cochlear structure(s) is/are likely affected?