Preoperative determination of nerve of origin in patients with vestibular schwannoma

HNO
T RahneChristian Strauss

Abstract

Vestibular schwannoma (VS) is a benign tumor that develops in the internal auditory canal and the cerebellopontine angle, potentially diminishing hearing or balance. Most VS tumors arise from one of two vestibular branches: the superior or inferior vestibular nerve. Determining the specific nerve of origin could improve patient management in terms of preoperative counseling, treatment selection, and surgical decision-making and planning. The aim of this study was to introduce a novel scoring system that was designed to determine the nerve of origin. The nerve of origin was predicted based on video head impulse assessments of all semicircular channels, together with cervical/ocular vestibular-evoked myogenic potential tests. The acquired data were entered into a scoring system developed to allocate the tumor origin. Finally, the nerve of origin was definitively determined intraoperatively. The novel scoring system was applied to five consecutive patients undergoing surgical VS treatment. In one case, no determination was possible. In all other cases, the preoperatively predicted tumor origin was the same as the origin determined during surgery. The scoring system predicts the nerve of origin and will be evaluated in a larger pro...Continue Reading

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Citations

May 12, 2018·Operative Neurosurgery·Felipe ConstanzoRicardo Ramina
Nov 17, 2020·Frontiers in Neurology·Laura FröhlichStefan K Plontke
Mar 13, 2021·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Andrea CastellucciCristina Brandolini
Apr 23, 2021·Scientific Reports·Torsten RahneChristian Strauss
Aug 6, 2021·Laryngo- rhino- otologie·Nora M Weiss

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