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血管造影和尸检资料证明,大多数急性缺血性卒中是由颅外到颅内的血栓栓塞所致。作者报道3例颅外段颈内动脉(ICA)症状性动脉粥样硬化性狭窄或闭塞,通过经颅多普勒超声(TCD)检查,发现病变 ICA 的脑循环中有小的栓塞。本组男性2例,女性1例,年龄分别为42、48和72岁。一过性单眼失明、TIA 和卒中各2例。CT 扫描显示大脑中动脉(MCA)多发性梗塞2例,正常1例。脑血管造影显示 ICA 梗塞1例,ICA 狭窄2例。
Angiography and autopsy data show that most acute ischemic stroke is caused by extracranial to intracranial thromboembolism. The authors reported three cases of symptomatic atherosclerotic stenosis or occlusion of the extracranial internal carotid artery (ICA). A small embolism in the cerebral circulation of the lesioned ICA was found by transcranial Doppler ultrasound (TCD). The group of 2 males and 1 females, aged 42, 48 and 72 years old. Transient monocular blindness, TIA and stroke in 2 cases. CT scan showed multiple cerebral infarction in middle cerebral artery (MCA) in 2 cases and normal in 1 case. Cerebral angiography showed ICA infarction in 1 case and ICA stenosis in 2 cases.