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Associations of fetal-type posterior cerebral artery with infarction distribution and stroke severity in patients with acute ischemic stroke
Pages: 320-326
Year: Issue:  4
Journal: International Journal of Cerebrovascular Diseases

Abstract: ObjectiveTo investigate the associations of fetal-type posterior cerebral artery (FTP) with infarction distribution and stroke severity in patients with acute ischemic stroke.MethodsThe patients with acute ischemic stroke were enrolled.They were divided into either a FTP group or a non-FTP group according to the results of magnetic resonance imaging.The former group was further divided into complete FTP (cFTP) and partial FTP (pFTP).According to the results of diffusion-weighted imaging, the infarction distribution was divided into the territory of the anterior cerebral artery (ACA), middle cerebral artery (MCA), posterior cerebral artery (PCA), and vertebrobasilar artery.According to the National Institutes of Health Stroke Scale (NIHSS), the stroke severity was assessed, <8 was defined as mild stroke, and ≥8 was defined as moderate to severe stroke.Multivariate logistic regression analysis was used to determine the associations of FTP with infarction distribution and stroke severity.ResultsA total of 647 patients with acute ischemic stroke were enrolled, and 201 (31.1%) had FTP, including 162 (25.0%) cFTP and 39 (6.0%) pFTP.Multivariate logistic regression analysis showed that cFTP and pFTP were the independent risk factors for MCA infarction (cFTP: odds ratio [OR] 24.714, 95% confidence interval [CI] 10.952-45.766, P<0.001;pFTP: OR 14.526, 95% CI 6.832-25.931, P<0.001), and the independent protective factors for PCA infarction (cFTP: OR 0.214, 95% CI 0.022-0.531, P<0.001;pFTP: OR 0.326, 95% CI 0.018-0.739, P<0.001), they were also the independent risk factor for the severity of acute ischemic stroke (cFTP: OR 22.138, 95% CI 12.492-64.067, P<0.001;cFTP: OR 19.510, 95% CI 8.956-23.514, P<0.001).ConclusionscFTP and pFTP are the independent risk factors for MCA infarction, and the independent protective factors for PCA infarction, and at the same time, they were also the independent risk factors for the moderate to severe stroke.FTP is associated with the infarction distribution and the stroke severity in acute ischemic stroke.
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