소뇌교각부종양 수술 중 뇌줄기청각유발검사와 자유근전도를 활용한 전정신경 수술중신경계감시

Abstract

Cerebellopontine angle tumors including schwannoma or meningioma are located around the vestibular nerve. In the case of surgical removal, intraoperative neurophysiologic monitoring (IONM) modality such as brainstem auditory evoked potential (BAEP) could detect its neurologic function. We demonstrate 2 cases of cerebellopontine angle surgery using BAEP as an IONM modality. And we also suggest how to deal with the case where BAEP is not measured, by using triggered electromyography.