血管攣縮に続発する脳動脈閉塞

Arterial Occlusion following Cerebral Vasospasm

Ⅰ．緒言

　脳動脈瘤破裂後急性期ないし亜急性期に行われた連続脳血管撮影像を詳細に検討すると，脳血管攣縮のみならずそれに伴う明らかな脳動脈閉塞所見が認められることがある．従来，この現象について系統的に述べた報告はない．本報告の目的は，この脳動脈閉塞現象の病態と臨床的意義を明らかにすることにある．

1. The present study analysed the clinical course, the serial angiograms and the CT scans of the patients with angiographic arterial occlusion following vasospasm after subarachnoid hemorrhage. The occlusion was observed in 6 out of 81 patients with vasospasm.

2. The angiograms which showed this phenomenon were obtained between the 11th and the 30th day of the illness. The affected vessels were the branches of middle cerebral artery.