![]() ![]() The vertebral arteries (VAs) originate from the subclavian artery, and the two VAs converge to form the BA at the lower margin of the junction of the medulla oblongata and the pons. PICA-VA was an independent risk for vertebrobasilar stroke after being adjusted for a history of intracranial hemorrhage, diabetes, body mass index, and triglyceride.Ĭonclusion: The present study showed that 3.76% of patients with acute stroke had PICA-VA, which independently increased the risk of acute vertebrobasilar stroke. The prevalence of vertebrobasilar stroke was considerably higher in patients with PICA-VA than those without (40.2%, 37/92 vs. Among them, 95 patients (3.76%, 95/2,528) had the variation of PICA-VA, 51 of which (53.7%) were located on the right side. Results: From 1 August 2015 to, a total of 2,528 patients were enrolled in the present study. We observed the prevalence of PICA-VA and identified a relationship between PICA-VA and vertebrobasilar stroke. PICA-VA is termed as a vertebral artery that does not communicate with the basilar artery but terminates in an ipsilateral PICA. Patients were enrolled for cerebral MRI and MRA within 1 week of stroke onset. Methods: This was a multicenter hospital-based cross-sectional study. ![]() In the present study, we aimed to investigate the prevalence and clinical significance of PICA-VA. ![]() Objective: Intracranial vertebral artery terminated in the posterior inferior cerebellar artery (PICA-VA) is the most popular variant of the posterior inferior cerebellar artery, while its prevalence and clinical significance remained unclear.
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