Randomized trial shows improved outcomes in symptomatic patients with high-grade carotid stenosis, suggesting effective treatment for ischemic conditions.
Carotid endarterectomy is highly beneficial to patients with recent hemispheric and retinal transient ischemic attacks or nondisabling strokes and ipsilateral high-grade stenosis (70 to 99 percent) of the internal carotid artery.
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H. J. M. Barnett (1991) studied this question.
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