Abstract
It has been suggested that, in patients with atrial septal aneurysm (ASA), brain infarcts occur more frequently in the vertebrobasilar territory. The aim of our study was to compare the location of infarcts between (1) 26 patients with an ASA and no other potential cause of stroke; (2) 76 patients with presumed cardioembolic stroke and no ASA, and (3) 64 patients with large-vessel atherosclerosis (LVA) and no ASA. Infarcts were less likely to be cortical (p = 0.005) in the ASA group than in the LVA group. The location of infarcts did not significantly differ between ASA and cardioembolic groups. The prevalence of vertebrobasilar infarcts did not differ between groups. This study did not support the hypothesis that, in patients with ASA, brain infarcts occur more frequently in the vertebrobasilar territory.
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