Yi Yang1,2,3, Qi Kong1,2,3, Xin Ma1,2,3, Chen Wang4, Sufang Xue2,3,1, Xiangying Du4. 1. Department of Neurology, Xuanwu Hospital, Capital Medical University. 2. National Clinical Research Center for Geriatric Disorders. 3. Clinical Center for Cardio-cerebrovascular Disease of Capital Medical University. 4. Department of Radiology, Xuanwu Hospital, Capital Medical University.
Abstract
AIM: Cervicocephalic atherosclerosis (AS) of patients with large-artery atherosclerotic (LAA) stroke might be more closely correlated to the functional outcome than patients with stroke of other etiologies. We aimed to investigate whether a whole-scope evaluation of cervicocephalic AS condition was better at predicting the 90-day functional outcome of LAA stroke than evaluation of intracranial or cervical AS condition alone. METHODS: Patients with LAA stroke were consecutively enrolled in this study. Computed tomography angiography was performed to evaluate AS condition of various cervicocephalic arterial segments. AS conditions ranging from no AS plaque to complete arterial occlusion scored 0-4 points. Intracranial atherosclerotic burden (IAB) and cervical atherosclerotic burden (CAB) were in respective the sums of AS scores of all intracranial arterial segments and all cervical arterial segments. And the sum of them was intracranial and cervical atherosclerotic burden (ICAB). Relationships of these three scores with the 90-day unfavorable functional outcome (modified Rankin Scale[mRS] score ＞2 points) were compared. RESULTS: Of 172 patients who finished 90-day follow-up, only ICAB (adjusted odds ratio[OR]=1.10, 95% confidence interval[CI]:1.00-1.21, p=0.044) predicted 90-day unfavorable functional outcome independently of clinical factors, National Institutes of Health Stroke Scale (NIHSS) and mRS scores at admission. ICAB (adjusted hazard ratio[HR]=1.16, 95%CI:1.02-1.32, p=0.029) was related to 90-day recurrent ischemic stroke/death independently of clinical factors and was independently, positively correlated with NIHSS score at admission (r=0.16, p=0.047), whereas IAB and CAB were not. CONCLUSION: A whole-scope evaluation of cervicocephalic AS condition using ICAB outperformed evaluation of intracranial or cervical AS condition alone in predicting 90-day functional outcome of patients with LAA stroke.
AIM: Cervicocephalic atherosclerosis (AS) of patients with large-artery atherosclerotic (LAA) stroke might be more closely correlated to the functional outcome than patients with stroke of other etiologies. We aimed to investigate whether a whole-scope evaluation of cervicocephalic AS condition was better at predicting the 90-day functional outcome of LAA stroke than evaluation of intracranial or cervical AS condition alone. METHODS: Patients with LAA stroke were consecutively enrolled in this study. Computed tomography angiography was performed to evaluate AS condition of various cervicocephalic arterial segments. AS conditions ranging from no AS plaque to complete arterial occlusion scored 0-4 points. Intracranial atherosclerotic burden (IAB) and cervical atherosclerotic burden (CAB) were in respective the sums of AS scores of all intracranial arterial segments and all cervical arterial segments. And the sum of them was intracranial and cervical atherosclerotic burden (ICAB). Relationships of these three scores with the 90-day unfavorable functional outcome (modified Rankin Scale[mRS] score ＞2 points) were compared. RESULTS: Of 172 patients who finished 90-day follow-up, only ICAB (adjusted odds ratio[OR]=1.10, 95% confidence interval[CI]:1.00-1.21, p=0.044) predicted 90-day unfavorable functional outcome independently of clinical factors, National Institutes of Health Stroke Scale (NIHSS) and mRS scores at admission. ICAB (adjusted hazard ratio[HR]=1.16, 95%CI:1.02-1.32, p=0.029) was related to 90-day recurrent ischemic stroke/death independently of clinical factors and was independently, positively correlated with NIHSS score at admission (r=0.16, p=0.047), whereas IAB and CAB were not. CONCLUSION: A whole-scope evaluation of cervicocephalic AS condition using ICAB outperformed evaluation of intracranial or cervical AS condition alone in predicting 90-day functional outcome of patients with LAA stroke.
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