title: Intraoperative neuromonitoring techniques in the surgical management of acoustic neuromas.
abstract: Unfavorable outcomes such as facial paralysis and deafness were once unfortunate probable complications following resection of acoustic neuromas. However, the implementation of intraoperative neuromonitoring during acoustic neuroma surgery has demonstrated placing more emphasis on quality of life and preserving neurological function. A modern review demonstrates a great degree of recent success in this regard. In facial nerve monitoring, the use of modern electromyography along with improvements in microneurosurgery has significantly improved preservation. Recent studies have evaluated the use of video monitoring as an adjunctive tool to further improve outcomes for patients undergoing surgery. Vestibulocochlear nerve monitoring has also been extensively studied, with the most popular techniques including brainstem auditory evoked potential monitoring, electrocochleography, and direct compound nerve action potential monitoring. Among them, direct recording remains the most promising and preferred monitoring method for functional acoustic preservation. However, when compared with postoperative facial nerve function, the hearing preservation is only maintained at a lower rate. Here, the authors analyze the major intraoperative neuromonitoring techniques available for acoustic neuroma resection.
authors.affiliation: Department of Neurosurgery, David Geffen School of Medicine, University of California, Los Angeles, CA 90095-1761, USA.
authors.forename: Taemin
authors.initials: T
authors.lastname: Oh
authors.forename: Daniel T
authors.initials: DT
authors.lastname: Nagasawa
authors.forename: Brendan M
authors.initials: BM
authors.lastname: Fong
authors.forename: Andy
authors.initials: A
authors.lastname: Trang
authors.forename: Quinton
authors.initials: Q
authors.lastname: Gopen
authors.forename: Andrew T
authors.initials: AT
authors.lastname: Parsa
authors.forename: Isaac
authors.initials: I
authors.lastname: Yang
mesh_terms: D001300:Audiometry, Evoked Response; D004558:Electric Stimulation; D004576:Electromyography; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology; D005154:Facial Nerve / Q000503:physiopathology; D006801:Humans; D016343:Monitoring, Intraoperative / Q000379:methods*; D009464:Neuroma, Acoustic / Q000503:physiopathology* / Q000601:surgery*; D010525:Peripheral Nerves / Q000503:physiopathology*; D011183:Postoperative Complications / Q000503:physiopathology*; D000159:Vestibulocochlear Nerve