Basilar artery fenestration in association with aneurysms of the posterior cerebral circulation

We reviewed all patients over a 3-year period with documented aneurysms of the posterior cerebral circulation, and re-examined the angiograms of 103 patients. There were 9 cases of fenestration of the basilar artery, all associated with aneurysms of the basilar artery. In 6, the aneurysm arose at th...

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Bibliographic Details
Published in:Neuroradiology 1997-03, Vol.39 (3), p.185-189
Main Authors: TASKER, A. D, BYRNE, J. V
Format: Article
Language:English
Subjects:
Adult
Aged
Aneurysm, Ruptured - diagnostic imaging
Aneurysm, Ruptured - surgery
Basilar Artery - diagnostic imaging
Basilar Artery - surgery
Biological and medical sciences
Cerebral Angiography
Embolization, Therapeutic
Female
Humans
Intracranial Aneurysm - diagnostic imaging
Intracranial Aneurysm - surgery
Male
Medical sciences
Middle Aged
Neurology
Postoperative Complications - diagnostic imaging
Retrospective Studies
Risk Factors
Subarachnoid Hemorrhage - diagnostic imaging
Subarachnoid Hemorrhage - surgery
Vascular diseases and vascular malformations of the nervous system
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Summary:We reviewed all patients over a 3-year period with documented aneurysms of the posterior cerebral circulation, and re-examined the angiograms of 103 patients. There were 9 cases of fenestration of the basilar artery, all associated with aneurysms of the basilar artery. In 6, the aneurysm arose at the site of the fenestration. We believe that the presence of a fenestration predisposes to aneurysm formation, due to the combination of the resulting alteration in flow characteristics and the presence of a defect in the media of the vessel.
ISSN:0028-3940
1432-1920
DOI:10.1007/s002340050389