关键词: 椎动脉; 夹层; 后循环缺血; 介入治疗

Abstract: Objective To analyze the clinical features of posterior circulation ischemia resulted from vertebrobasilar artery dissection.Methods Seven patients of vertebrobasilar artery dissection identified by magnetic resonance angiography(MRA) or digital subtraction angiography(DSA) or biopsy were retrospective analyzed.Results All seven patients complained of posterior circulation ischemic symptoms. The diagnosis of dissection was made by MRA in one patient, biopsy in another patient, and DSA in other fve patients. One patient was dead after thrombolysis with urokinase, three patients received antiplatelet agents, and three patients received angioplasty and stenting followed by antiplatelet agents. Six patients didn’t have any ischemic event during 3-24 months follow-up.Conclusion Vertebrobasilar artery dissection as one cause of posterior circulation ischemia, its identification is important for prognosis. Antiplatelet agents and interventional therapy may be effective.

Key words: Vetebral artery; dissection; Posterior circulation ischemia; Interventional therapy