Extracranial Cerebrovascular Disease

1.1 For low surgical risk patients with asymptomatic carotid bifurcation atherosclerosis and stenosis of >70% (documented by validated duplex ultrasound or computed tomography angiography [CTA]/angiography), we recommend CEA with best medical therapy instead of maximal medical therapy alone for the long-term prevention of stroke and death. ( 1 – Strong , B)