关键词: 后循环缺血性卒中; 危险因素; 预后

Abstract: Objective To evaluate the determinants of the prognosis of patients with posterior circulationischemic stroke.Methods Total 156 patients with posterior circulation ischemic stroke within 7 days admittedduring 2004-2006 were analyzed retrospectively. All patients were undertaken magnetic resonanceimaging(MRI) on admission and ischemic lesions were identified at the posterior circulationterritories. The patients were evaluated within 2 years by modified Rankin scale(mRS) and Bathelindex(BI) to investigate the relationships between risk factors, lesion locations and prognosis.Results Of the 156 patients, 76.3% showed no or mild disability(mRS 0-3) and 19.9% showedsevere disability(mRS 4-5) within 2 years. Mortality was 3.8% of all the patients. There wassignificant coincidence between mRS and BI(P <0.01). When evaluated by BI, prognosis within 2years of the patients were associated with age(OR 1.079, 95%CI 1.034-1.125, P <0.01), multiplelesions(OR 3.463, 95%CI 1.294-9.267, P =0.013), stroke history(OR 2.505, 95%CI 1.103-5.685,P =0.025) by the logistic procedure.Conclusion Majority of the patients with posterior circulation ischemic stroke have goodprognosis. Patients who are young, with single lesion and no stroke history have better prognosis.

Key words: Posterior circulation ischemic stroke; Risk factor; Prognosis