Department of Neurosurgery, University of Colorado Anschutz School of Medicine, Aurora, CO, USA.
Acta Neurochir (Wien). 2024 Feb 26;166(1):105. doi: 10.1007/s00701-024-05998-z.
To improve hearing function after resection of large vestibular schwannomas, we describe a strategy of vestibular-nerve-fiber preservation. Anatomical considerations and stepwise dissection are described.
Steps include locating the vestibular nerve at the brainstem and identifying a dissection plane between nerve fibers and tumor capsule. Using this plane to mobilize and resect tumor reduced manipulation and maintained vascularity of underlying cochlear and facial nerves.
Preservation of hearing function is feasible in large vestibular schwannomas with vestibular-nerve-fiber preservation. Reducing manipulation and ischemic injury of underlying cochlear and facial nerves thereby helped facilitate hearing preservation, even in large tumors.
为改善大型前庭神经鞘瘤切除术后的听力功能，我们描述了一种保留前庭神经纤维的策略。本文介绍了相关解剖学考虑因素和逐步解剖步骤。
包括在脑干处定位前庭神经，并识别神经纤维与肿瘤囊之间的解剖平面。利用这个平面来移动和切除肿瘤，可以减少操作并维持下面耳蜗和面神经的血供。
在大型前庭神经鞘瘤中，通过保留前庭神经纤维，可以实现听力功能的保留。减少对下面耳蜗和面神经的操作和缺血性损伤，有助于促进听力保留，即使是在大型肿瘤中也是如此。
