Kim Eunja, Son Min-Ki, Kang Chang-Ki, Lee Yeong-Bae
Department of Neurology, Gachon University Gil Medical Center, Incheon, Korea.
J Cerebrovasc Endovasc Neurosurg. 2013 Sep;15(3):225-8. doi: 10.7461/jcen.2013.15.3.225. Epub 2013 Sep 30.
Isolated bilateral deafness is a rare but possible symptom of vertebrobasilar ischemia, primarily due to occlusion of the anterior inferior cerebellar arteries or their branch, the internal auditory artery. We reported on uncommon case of sudden bilateral sensorineural hearing loss without typical neurological symptoms resulting from vertebrobasilar ischemia. We performed the available examinations, including otoscopy, laboratory tests, and pure tone audiogram, however we were not able to identify the cause of bilateral sensorineural hearing loss. Brain magnetic resonance image showed the cerebellar infarction of the posterior inferior cerebellar artery territory. Brain magnetic resonance angiography showed bilateral vertebral and basilar artery occlusion. We suggest vertebrobasilar ischemia as a cause of sudden isolated deafness.
孤立性双侧耳聋是椎基底动脉缺血的一种罕见但可能出现的症状，主要是由于小脑前下动脉或其分支内听动脉闭塞所致。我们报告了一例不常见的因椎基底动脉缺血导致的突发双侧感音神经性听力损失且无典型神经症状的病例。我们进行了包括耳镜检查、实验室检查和纯音听力图等现有检查，但未能确定双侧感音神经性听力损失的原因。脑部磁共振成像显示小脑后下动脉供血区的小脑梗死。脑部磁共振血管造影显示双侧椎动脉和基底动脉闭塞。我们认为椎基底动脉缺血是突发孤立性耳聋的一个原因。
