No shinkei geka. Neurological surgery
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This is a report of unruptured aneurysms with occlusion of the basilar artery. A 61-year-old female was admitted to our hospital because of dysarthria and numbness of her left face. Angiography revealed occlusion of the basilar artery and severe arteriosclerosis of the bilateral cerebral carotid arteries. ⋯ CT scan showed subarachnoid hemorrhage, and angiography demonstrated a newly developed aneurysm which might have ruptured on left internal carotid anterior choroidal artery bifurcation. Emergency neck clipping of the second aneurysm was performed, and the patient showed a good postoperative course. The newly developed second aneurysm might have been caused by severe arteriosclerosis and hypertension in addition to hemodynamic stress.