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此前的研究表明,颈内动脉高度狭窄的患者其相应供血区发生有症状脑部微栓塞的比率高于无症状者。行颈内动脉内膜切除术后其比率有所下降。为了弄清颈内动脉粥样斑块的病理解剖学特性与微栓子发生率之间的关系,我们进行了以下研究。 选择40名颈内动脉(ICA)颅外段高度狭窄(管腔狭窄程度70％～95％)准备行颈内动脉内膜切除术的患者(女13名,男27名;年龄41～84岁,平均67岁),将近121天内因ICA高度狭窄有短暂性视觉或脑部症状或轻微缺血症状的28名患者作为有
Previous studies have shown that the proportion of patients with symptomatic brain micro-embolism in their corresponding blood supply areas is higher in patients with high internal carotid artery stenosis than in asymptomatic individuals. The rate of internal carotid endarterectomy decreased. In order to understand the relationship between the pathological anatomy of atherosclerotic plaques in the carotid artery and the incidence of microemboli, we performed the following studies. Forty carotid artery (ICA) extracranial stenosis (stenosis of 70% ~ 95%) were enrolled in this study. Thirteen patients (13 males, 27 males and 41 to 84 years old , Average 67 years old). In the past 121 days, there were 28 patients with transient visual or brain symptoms or mild ischemic symptoms due to high ICA stenosis