Intraoperative Round Window Cochlear Electrical Diagram In Cochlear And Auditory Neuropathy Preliminary Discussion Of The Experimental Animal Models

Objective1. To objectively evaluate the surgical trauma to the basilar membrane of the cochlea after cochlear implant electrode insertion through analyzing the thresholds of cochlear microphonic (CM) of round window electrocochleography (RW EcochG) recording pre and post cochlear implant operation.2. To prove the probability of auditory neuropathy according to the presence or absence of compound action potential (CAP) of RW ECochG during the cochlear implant operation.Methods1. RW EcochG was performed on 40 cases with profound sensorineural deafness under general anesthesia in the standard operating room. The difference in the thresholds of CM of RW EcochG was analyzed between pre and post cochlear implantation.