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Carotid artery stenosis of 50%or more occurs in about 12%of elderly patients with AF,reflecting the substantial prevalence of hypertension and diabetes in these patients.Carotid stenosis was not usefully predictive of stroke in patients with AF who were given aspirin or warfarin.Routine ultrasonography to detect carotid stenosis does not appear warranted in patients with AF without previous symptoms of brain ischemia. |
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