Abstract

Objective To study stroke common risk factors,TOAST subtypes and prognosis in the anterior and posterior circulation infarction.Methods Five hundred and seven patients with anterior circulation infarction and 114 patients with posterior circulation infarction were prospectively analyzed in common risk factors,TOAST subtypes and their prognosis.Results Hypertension was a major risk factor in anterior circulation infarction and posterior circulation infarction (58.2％ vs 63.2％),this difference was not statistically significant (P ＞ 0.05).The prevalence of smoking and hyperlipidemia in anterior circulation infarction was lower than the posterior circulation infarction,and the prevalence of atrial fibrillation in anterior circulation infarction was higher than that in posterior circulation infarction (P ＜ 0.05).The prevalence of cardioembolic strokes in anterior circulation infarction was higher than that in posterior circulation infarction (P =0.042).At the end of 3 and 6 months follow-up,patients with anterior circulation infarction had higher matality rate and poorer prognosis rate than patients with posterior circulation infarction (P ＜0.05).Conclusions There are some differences in stroke common risk factors,subtypes and outcomes between anterior and posterior circulation infarction,patients with anterior circulation infarction remained more diabled than patients with posterior circulation infarction,which needs to be verified by future studies. Key words: Anterior circulation infarction; Posterior circulation infarction; Risk factor; Subtypes ; Prognosis

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