1. Antiplatelet agents such as aspirin or statins are preferred for patients with asymptomatic carotid artery stenosis. 2. Carotid endarterectomy (CEA) is recommended for patients with severe ipsilateral carotid stenosis (70%-99%) who have had a recent TIA or a history of ischemic stroke in the last 6 months. CEA can be performed in patients with moderate ipsilateral carotid stenosis (50%-69%) who have had a recent ischemic stroke or TIA, but some special circumstances of the patient such as age, gender, severity of complications and onset of symptoms should be considered. 4. CAS can be considered in patients with symptomatic severe carotid stenosis (>70%). 5. Intracranial or extracranial bypass shunts are not recommended routinely in patients with symptomatic carotid occlusion.