Association between vertebral artery hypoplasia and acute posterior circulation ischemic stroke / 中华老年心脑血管病杂志

ABSTRACT

Obective To study the association between vertebral artery hypoplasia (VAH) and acute posterior circulation ischemic stroke (APCIS).Methods Of the 718 patients admitted to our hospital for carotid artery ultrosonography and head MRI included in this study,381 with unilateral or bilateral VAH served as an observation group and 337 without unilateral or bilateral VAH served as a control group.The incidence of APCIS in two groups was retrospectively analyzed.The risk factors for APCIS were analyzed by multivariate logistic stepwise regression analysis.Results The incidence of embryonal posterior cerebral artery hypoplasia was significantly higher in observation group than in control group (48.03％ vs 15.13％,P=0.000).No significant difference was found in the incidence of APCIS between the two groups (14.16％ vs 10.00％when the age was ≤ 55 years,7.84％ vs 11.24％ when the age was＞＞55 years,xMH2 =0.310,P=0.578).Hypertension and hyperlipidaemia were the risk factors for APCIS (OR=1.913,P=0.019;OR=1.875,P=0.015).Conclusion VAH is rather common in APCIS patients.However,its accomplanied embryonal posterior cerebral artery hypoplasia does not incease the risk of APCIS.