منابع مشابه
The clinical relevance of vertebral artery hypoplasia.
Congenital vertebral artery (VA) hypoplasia is an uncommon embryonic variation of posterior circulation. The frequency of this congenital variation was reported to be 2-6% from autopsy and angiograms. Is it a congenital risk factor of ischemic stroke? In this review, we gave an overview of the literature concerning vertebral artery hypoplasia. VA hypoplasia served as an independent factor of a ...
متن کاملVertebral artery hypoplasia and vertebral artery dissection: a hospital-based cohort study.
OBJECTIVE To test the hypotheses that vertebral artery hypoplasia (VAH) is associated with an increased risk of ipsilateral spontaneous vertebral artery dissection (sVAD) and that hypoplastic vertebral arteries (VAs) are more prone than dominant VAs to dissection. METHODS In this case-control study, the population comprised 112 patients with sVAD and 224 age- and sex-matched controls treated ...
متن کاملAssociation between vertebral artery hypoplasia and posterior circulation stroke
BACKGROUND The clinical significance of vertebral artery (VA) hypoplasia is under discussion. The aim of this retrospective study is to evaluate a hypothesis of a possible causal link between VA hypoplasia (VAH) and the incidence of posterior circulation stroke (PCS) or TIA depending on the degree of VAH and vascular risk factors. METHODS A total of 367 symptomatic (PCS or TIA) and 742 asympt...
متن کاملVertebral Artery Hypoplasia in a Black Kenyan Population
This study examined the characteristics of vertebral artery hypoplasia in 346 arteries of adult black Kenyans. The circumference was measured on haematoxylin/eosin stained microscopic sections of the distal one-third of the intracranial vertebral arteries using scion image analyser. Internal diameter was calculated in millimetre. Data were analysed using SPSS version 16.0. Vertebral artery hypo...
متن کاملAnatomical Variations of Vertebral Artery
Introduction: Vertebral arteries arise from the root of the neck as the first branches from the superior-posterior aspect of the subclavian arteries. They ascend the neck to enter the cranial cavity and supply blood to the brain. Methods: A total of 20 cadavers (in 10 years) were dissected for the study of variations in the origin of the vertebral artery. This study was conducte...
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ژورنال
عنوان ژورنال: Stroke
سال: 2014
ISSN: 0039-2499,1524-4628
DOI: 10.1161/strokeaha.113.004188