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对4例小脑前下动脉(AICA)障碍患者作了神经耳科学及放射学研究。临床表现为眩晕、患侧感音性聋、耳鸣、恶心呕吐、面瘫、面部运动及感觉异常等,1～8个月症状有所改善,检查见旋转性眼震,半规管麻痹,ABR无反应,椎动脉造影显示椎动脉闭塞、AlCA闭塞,小脑上动脉有侧支循环,有时CT可见低密度区,MRI可见AlCA、小脑后下动脉营养区为高信号强度区。 AlCA营养脑桥下部、延髓上部,其外侧支营养第Ⅶ、Ⅷ颅神经核,并发出内听动脉。AlCA在神经耳科学中有重要意义。一般在AlCA
Neuroethological and radiological studies were performed on 4 patients with anterior inferior cerebellar artery (AICA) disorder. The clinical manifestations were dizziness, irritation of the affected side, tinnitus, nausea, vomiting, facial paralysis, facial movements, and sensory abnormalities. The symptoms were improved in 1 to 8 months. The examination showed rotational nystagmus, semicircular canal paralysis, and ABR had no response. Vertebral artery angiography showed vertebral artery occlusion, AlCA occlusion, collateral circulation of the superior cerebellar artery, and sometimes low-density CT visible areas, MRI visible AlCA, posterior inferior cerebellar artery vegetative areas for high signal intensity. AlCA nutrient pons, the upper medulla oblongata, its lateral branch nutrition VII, VIII cranial nerve nucleus, and issued the internal auditory artery. AlCA is of great significance in neuro-auricular science. Generally in AlCA