alexa Pattern of Origin of Anterior Inferior Cerebellar Arter
ISSN: 2161-0940

Anatomy & Physiology: Current Research
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Research Article

Pattern of Origin of Anterior Inferior Cerebellar Artery in a Black Kenyan Population

Julius A Ogeng’o*, Musa Misiani, Beda O Olabu and Martin I Inyimili

Department of Human Anatomy, University of Nairobi, Nairobi, Kenya

Corresponding Author:
Julius Ogeng’o
Department of Human Anatomy
University of Nairobi, Kenya
Tel: +254720837592
E-mail: [email protected]

Received Date: July 10, 2014; Accepted Date: August 31, 2014; Published Date:September 02, 2014

Citation:Ogeng’o JA, Misiani M, Olabu BO, Inyimili MI (2014) Pattern of Origin of Anterior Inferior Cerebellar Artery in a Black Kenyan Population. Anat Physiol 4:154. doi: 10.4172/2161-0940.1000154

Copyright: © 2014 Ogeng’o JA, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Background: Pattern of origin of anterior inferior artery is important in interpretation of posterior circulatory stroke and during posterior cranial fossa surgery for aneurysms, arteriovenous malformations, tumors, posterior cerebral revascularization, and in diagnostic as well as interventional neuroradiology. The pattern displays ethnic variation but data from African populations are scanty. This study therefore aimed to describe the pattern of origin of anterior cerebellar artery in a black Kenyan population.
Materials and Methods: One hundred and seventy three [99 male: 74 female] basilar arteries from adult formalin fixed brains were studied at Department of Human Anatomy, University of Nairobi, Kenya. Site and pattern of origin of anterior inferior cerebellar arteries were recorded. Data were analyzed by SPSS version 17.0 for Windows, and presented in a table and macrographs.
Results: Anterior inferior cerebellar artery arose directly from basilar artery in 138 (79.8%), as common trunk with labyrinthine artery in 24 (13.9%), from verterbral and labyrinthine arteries in 3% cases each.
Conclusion: In about 14% cases, anterior inferior cerebellar and labyrinthine arteries arise as common
trunks from basilar artery. These proportions differ with those in prevailing literature from Caucasian and oriental populations. Extra care should therefore be exercised during surgery and neuroradiology in the posterior cranial fossa, and in interpretation of signs of posterior circulation stroke. Pre-operative ultrasound evaluation of the vascular bed is recommended.

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