抄録
A ruptured aneurysm of the anterior inferior cerebellar artery (AICA) located in the internal auditory meatus is reported. A 43-year-old housewife suddenly had a severe headache with subsequent right hearing disturbance, nausea and vomiting. About sixteen hours from onset, the patient presented with clinical grade II (Hunt and Kosnik) and the aneurysm was clipped via the right suboccipital craniectomy. Three months after operation, the patient was fully alert and could walk alone except for the right hearing loss and mild right facial paresis.
Nine cases with ruptured aneurysm of the distal AICA are reviewed in the literature. All ten cases are discussed with special reference to anatomical relationship between the aneurysmal neck and the internal auditory meatus, operative procedures and postoperative seventh and eighth cranial nerves function.
