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Our data suggest that approximately 20% and 45% of strokes in the territory of symptomatic and asymptomatic carotid arteries with 70% to 99% stenosis, respectively, are unrelated to carotid stenosis. The cause of subsequent strokes in simi lar types of patients should be considered when making treatment decisions involving carotid endarterectomy for patients with asymptomatic carotid stenosis, since lacunar and cardioembolic strokes cannot be prevented by endarterectomy. |
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