In our life, we often see people with hemiplegia or hemiplegia in the park or on the road, either on crutches or in wheelchairs, which not only brings a lot of inconvenience to their lives, but also brings a great economic burden to their families and society. The above diseases are caused by cerebrovascular accidents, among these patients, cerebral ischemic attack (cerebral infarction) accounts for more than 80%, if we trace the origin, we can find the culprit that causes the disease attack —– internal carotid artery stenosis. Carotid artery stenosis, carotid atherosclerosis is the main cause of ischemic stroke, the risk factors leading to carotid stenosis are hypertension, hyperlipidemia, diabetes, smoking, etc. The consequences of carotid artery stenosis are serious. Ischemic stroke often manifests as sudden onset of dizziness, headache, impaired consciousness, facial muscle paralysis, sudden loss of vision in one eye and weakness of the body, and even loss of sensory and motor functions of the limbs. These symptoms are often transient and do not last more than 24 hours. If these symptoms occur frequently or suddenly, they can lead to permanent brain damage, such as hemiplegia, aphasia, hemianopia, and sensory impairment. Ischemic stroke is the most common cause of disability in patients, and there is a very close relationship between extracranial segment carotid stenosis and ischemic stroke attacks. There are two main reasons for this: 1. Carotid artery, especially the internal carotid artery, is the main vessel supplying intracranial blood flow. If the carotid artery is progressively stenosed, it will lead to a decrease in cerebral perfusion, causing dizziness and discomfort to the patient. Severe stenosis can cause a sharp decrease in cerebral perfusion under the action of some triggers (such as agitation, fall, hypotension, etc.), leading to cerebral infarction; 2. Carotid artery atheromatous plaque is deposited in the carotid vessel wall, and if the plaque is suddenly dislodged or ruptured, a tiny thrombus can be formed, resulting in cerebral infarction. The latter is more common in clinical practice. Moderate to severe stenosis requires treatment For patients with clinical symptoms, the first thing is to pay high attention to their own blood vessels, especially the carotid artery. In the hospital, the degree of stenosis of the carotid artery can be well determined by ultrasound or CT angiography. For patients with internal carotid artery stenosis of more than 50% and clinical symptoms, or patients with stenosis greater than 70% and high risk factors or family history, surgical intervention should be taken, which can effectively reduce the occurrence of cerebral ischemic stroke and hemiplegic events. For patients with mild internal carotid artery stenosis, the process of the lesion can be controlled by regular medication and appropriate exercise, although it is still necessary to review the vascular ultrasound every six months. Patients with moderate or severe stenosis can be treated by surgical removal of the thickened intima and plaque, or by interventional placement of a stent, both of which can yield good results. Atherosclerosis is a systemic disease, and patients with severe carotid stenosis often have a combination of heart disease, renal atherosclerosis stenosis, or atherosclerotic stenosis of the lower extremity arteries. Director Liu Peng and his colleagues have accumulated much and good experience in carotid artery combined with coronary artery, renal artery and lower limb artery surgery, and have completed 18 cases of coronary artery bypass graft combined with carotid artery stenosis surgery and 25 cases of carotid artery stenosis surgery combined with renal artery stenting, so that two or more problems can be solved by one surgery, which saves money and reduces the patient’s hospitalization time. Early prevention is important Preventing carotid artery stenosis is not difficult. First of all, it is important to develop a healthy lifestyle, adjust the diet, change the lifestyle, prevent and control hypertension, high blood pressure, high blood lipid, high blood sugar, do not smoke, drink less alcohol, and have regular health checkups at hospitals, especially for people over 50 years old who have combined hypertension, high blood lipid, and diabetes, and have routine carotid ultrasound examinations, so that problems can be easily detected in advance. Secondly, if symptoms such as dizziness, headache, crooked mouth and numbness of limbs occur outside the hospital, you should go to the hospital as soon as possible for active examination and active treatment to avoid cerebral infarction. To change passive treatment to active prevention, do not wait until the attack to go to the hospital, that situation is more troublesome.