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Overall,carotid endarterectomy reduced the risk of ipsilateral stroke at 24 months by at least 50%.Similar results were obtained for risk of major ipsilateral stroke and risk of all strokes and death.The presence of angiographically defined ulceration for medically treated symptomatic patients is associated with an increased risk of stroke.The risk of stroke more than doubles at higher degrees of stenosis.Carotid endarterectomy is beneficial in substantially reducing the risk of stroke,regardless of plaque ulceration and degree of severe carotid stenosis. |
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