Abstract: Objective To investigate prognosis of acute ischemic patients with internal carotid artery or middle cerebral artery occlusion and define predictors of clinical outcome.MethodsThe clinical and radiological data of 48 stroke patients who underwent magnetic resonance angiography (MRA) within 6 hours of symptom onset and visualized internal carotid artery or middle cerebral artery occlusion on early MRA were analyzed. 90 days after onset, modified Ranking Scale (mRS) scores were obtained and factors related with prognosis were defined by logistic regression analysis.ResultsOf 48 patients, 17 cases (35.4%) got good clinical outcome (mRS 0～2), 31 cases (64.6%) got poor clinical outcome (mRS 3～6) with 7 cases (14.6%) died. In multivariate logistic regression analysis, only large infarction ( OR=21.1, 95%CI 1.4～314.2, P=0.027) and hyperglycaemia ( OR=5.1, 95%CI 1.3～19.8, P=0.019) were independent predictors of poor outcome.ConclusionClinical outcomes of most acute stroke patients with internal carotid artery or middle cerebral artery occlusion are poor. Large infarction and hyperglycaemia are independent predictors of clinical outcome.

Key words: acute ischemic stroke, magnetic resonance angiography, prognosis