What is carotid artery stenosis? Carotid stenosis is a narrowing of the carotid lumen due to atheromatous plaque in the carotid artery, mostly in the bifurcation of the common carotid artery and the beginning of the internal carotid artery. Some stenotic lesions may even progress to complete occlusive lesions. What are the risks of carotid artery stenosis? Ischemic stroke is a common risk of disability, and there is a close relationship between carotid stenosis and ischemic stroke. Common causes include: 1) reduced cerebral perfusion due to severe stenosis; 2) cerebral infarction due to dislodgement of carotid atheromatous plaque or dislodgement of microthrombi formed by plaque rupture. Especially the latter cause is more common. The main symptoms caused by carotid stenosis are transient dizziness, blackness in front of the eyes, transient weakness of one limb, and even permanent hemiparesis as a serious consequence. Therefore, carotid stenosis should be treated actively. How should carotid artery stenosis be treated? First of all, carotid artery stenosis should be given high priority and risk factors should be actively controlled, and antiplatelet therapy is beneficial. For patients with carotid artery stenosis of 50% or more with clinical symptoms, or patients with stenosis of 70% or more, surgical treatment should be actively undertaken. Aggressive surgical treatment is effective in reducing the incidence of stroke and hemiparesis events. What are the surgical treatments for carotid stenosis? The surgical treatment of carotid stenosis is basically divided into 2 types: 1. Carotid endarterectomy. It is a classical surgical procedure, which is widely carried out at home and abroad, and the surgical effect is determined. 2.Carotid artery stent implantation. With less trauma and faster recovery, it is a minimally invasive treatment method that has been widely carried out in recent years to achieve cure through stent implantation. Vascular surgery has accumulated rich experience in both carotid endothelial stripping and carotid stent implantation, and has solved the disease for a large number of patients.