dc.contributor.author | Hassan, S | |
dc.contributor.author | Kithikii, KP | |
dc.contributor.author | Ogeng'o, Julius A | |
dc.date.accessioned | 2013-08-06T06:40:43Z | |
dc.date.available | 2013-08-06T06:40:43Z | |
dc.date.issued | 2008 | |
dc.identifier.citation | Hassan, S. A. I. D. I., Kithikii, K. P., & OGENG’O, J. A. (2008). ANATOMY/ANATOMIE VARIANT ANATOMY OF THE ANTERIOR CEREBRAL ARTERY IN ADULT BRAINS VARIANTES ANATOMIQUES DE L’ARTÈRE CÉRÉBRALE ANTÉRIEURE CHEZ L’ADULTE. Sommaire/Table of Contents, 27(1), 97. | en |
dc.identifier.uri | http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/54588 | |
dc.description.abstract | Background
Aneurysms of the anterior cerebral and anterior communicating arteries are common and their
microvascular surgical management requires sound knowledge of the normal and variant vascular anatomy.
Objective
The purpose of this study was to evaluate variations of the anterior cerebral and anterior communicating
arteries. Methods: Thirty six cadaveric brains (72 hemispheres) were studied by gross dissection for the
pattern of arterial blood supply.
Results
The anterior cerebral artery (ACA) was observed to originate from the ipsilateral internal carotid artery (ICA)
in all the cases studied. The most common type of termination of the ACA was bifurcation into pericallosal
(PerA) and callosomarginal (CMA) arteries with the PerA-CMA junction being supracallosal (60%),
infracallosal (27%) or precallosal (5%). Unique variations observed include an accessory ACA from the
ACoA, ’bihemispheric pericallosal arteries’, intertwining course of the A2 segments of the ACAs and
crossing branches from 1 hemisphere to another. Variations of the ACoA were also observed including
fenestration (26%) and duplication (13%).
Conclusions
The majority of ACA bifurcations, in the current study, were supracallosal suggesting the need for
exploration of the interhemispheric fissure during surgical corrections of distal ACA aneurysms. Further, the
incidence of the callosomarginal artery in this series appears to be at variance with other studies highlighting
the need to standardize the definition of the artery. Anterior communicating artery fenestration was the most
common variation raising concern as this has been shown to compromise collateral flow and predispose to
aneurysm formation | en |
dc.language.iso | en | en |
dc.publisher | University of Nairobi, | en |
dc.title | ANATOMY/ANATOMIE VARIANT ANATOMY OF THE ANTERIOR CEREBRAL ARTERY IN ADULT BRAINS VARIANTES ANATOMIQUES DE L'ARTÈRE | en |
dc.type | Article | en |