Auditory Nerve Test System During Vestibular Schwannoma Resection

"The Auditory Nerve Test System provides an electrically-evoked signal from within the cochlea to facilitate intraoperative auditory nerve monitoring. The auditory nerve can be measured both at the root entry zone of the brainstem (eCNAP) and with scalp electrodes (eABR). Data on the health of the auditory nerve will be collected immediately prior to tumor dissection, during tumor dissection, and immediately after tumor dissection. The main purpose of this study is to determine feasibility of this novel intraoperative monitoring protocol.~Secondarily, if the auditory nerve is visually confirmed to be intact following tumor resection then the patients will receive a cochlear implant during the same surgery."