Silent cerebral embolism caused by neurologically symptomatic high-grade carotid stenosis. Event rates before and after carotid endarterectomy.


Fourteen symptomatic patients with severe extracranial internal carotid artery stenosis (> or = 70% of luminal narrowing) were monitored using long-term transcranial Doppler ultrasonography to determine the rate of clinically silent embolism of the ipsilateral middle cerebral artery. Before carotid endarterectomy (all patients being treated with intravenous… (More)


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