Schwartz D M, Gennarelli T A
Department of Otorhinolaryngology, University of Pennsylvania Medical Center, Philadelphia 19104.
Am J Otol. 1990 Mar;11(2):95-8.
Trigeminal neuralgia (tic douloureux) is a condition characterized by intense, unilateral paroxysmal facial pain caused by an abnormality of the root entry zone of the trigeminal nerve. For patients with intractable pain unrelated to a pathologic process who fail to respond to conventional medical management, the microvascular decompression (MVD) is the operation of choice. Conductive or sensorineural hearing loss due either to stretching of the eighth nerve or hemotympanum during the operation is among the possible sequelae of MVD. We report on a perplexing case of delayed sensorineural hearing loss following uneventful microvascular decompression for trigeminal neuralgia that included intraoperative evoked potential monitoring.
三叉神经痛（痛性抽搐）是一种以三叉神经神经根入区异常导致的单侧面部剧烈阵发性疼痛为特征的疾病。对于疼痛难以控制且与病理过程无关、对传统药物治疗无反应的患者，微血管减压术（MVD）是首选手术。手术过程中因第八神经受牵拉或中耳积血导致的传导性或感音神经性听力损失是微血管减压术可能的后遗症之一。我们报告了一例在三叉神经痛微血管减压术过程顺利且术中进行了诱发电位监测的情况下，出现迟发性感音神经性听力损失的复杂病例。
