Vertebrobasilar Aneurysms

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Abstract
Analysis of a group of 27 patients with vertebrobasilar aneurysms suggests that the site of rupture cannot be reliably predicted by clinical means. Four-vessel angiography is indicated if carotid angiography is negative. If multiple aneurysms are present, vertebral angiography is of limited value in providing evidence of rupture. The overall survival of conservatively and surgically managed patients is similar. Basilar aneurysms are difficult to operate upon, and in this series the natural history of ruptured aneurysms at this site suggests that conservative management may be better than previously thought and merits further evaluation. Surgery for posterior cerebral and vertebral aneurysms has been encouraging.

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