両側中大脳動脈閉塞に合併した前交通動脈瘤の1例

A Case of Anterior Communicating Artery Aneurysm with Occlusion of the Bilateral Middle Cerebral Arteries

I．はじめに

　脳動脈瘤の発生にhemodynamic stressが関与していることは，脳動静脈奇形，脳主幹動脈閉塞等に脳動脈瘤が合併しやすい報告例からもよく知られている．われわれは両側中大脳動脈起始部閉塞に合併した前交通動脈瘤の1例を経験したので報告する．

A patient with ruptured anterior communicating artery aneurysm associated with occlusion of the bi-lateral middle cerebral arteries is presented.

A 70-year-old woman was hospitalized for sudden onset of severe headache and vomiting. She was alert, and no neurological deficit was found. CT scan showed a subarachnoid hemorrhage. Cerebral angiogram de-monstrated occlusion of the bilateral middle cerebral arteries and ruptured anterior communicating artery aneurysm. After operation, she fully recovered and was able to walk at the time of discharge.