Contralateral hearing loss after vestibular schwannoma removal surgery: case report

Removal of a vestibular schwannoma may result in ipsilateral hearing loss and facial palsy. So intraoperative neurophysiological monitoring is an important method for detecting potentially preventing paralysis. Contralateral after removal rare complications. The detection acute contralateral has not been reported intraoperatively the pathomechanism unclear. Our case was 52-year-old female with left surgery, who showed wave except I brainstem auditory evoked potentials (BAEP) monitoring. Postoperative pure tone audiometry right ear, compatible findings. Considering preserved no ischemic infarction on MRI, cochlear nerve problems during operation might be considered. This shows BAEP should performed contra-lesion side as well, which could helpful inferring etiology loss.