I. Incidence of cerebrovascular disease? The prevalence of cerebrovascular disease is 500-600 per 100,000 people/year, the incidence of cerebrovascular disease is 120-180 per 100,000 people/year, the mortality rate of cerebrovascular disease is 90-100 per 100,000 people/year, 80% of the survivors have a reduced quality of life, and 50% are severely disabled. Among them, subarachnoid hemorrhage is 10%, cerebral hemorrhage is 23%, cerebral infarction is 63%, and other causes are 4%. Second, what factors are related to the occurrence of cerebrovascular disease? 1.Related to hypertension. If the high pressure (systolic pressure) is persistently greater than 135 or low pressure (diastolic pressure) is persistently greater than 85, it is recommended to go to the hospital for consultation. 2.Related to atrial fibrillation of the heart. Atrial fibrillation is an irregular heartbeat that alters the normal function of the heart and makes certain components of the blood tend to collect in the atria. The irregular heartbeat causes these components to be dislodged and flow with the blood to the brain tissue, causing a stroke. Atrial fibrillation can be confirmed or excluded by electrocardiogram. 3. Related to smoking, alcohol consumption and dietary habits. Smoking doubles the risk of stroke. Studies have confirmed that smoking can cause stroke due to narrowing of the cerebral blood vessels. Excessive alcohol consumption can increase the risk of stroke by 3 times. High salt and high fat diet can lead to high blood pressure and obesity, and increase the risk of stroke. 4. Related to metabolic diseases. The incidence of metabolic diseases, such as diabetes and hyperlipidemia, has increased significantly in recent years. This is most likely related to the improvement of living standards. 3. Are there any aura symptoms of cerebrovascular disease? What should I do if I suspect cerebrovascular? Although the onset of cerebrovascular disease is rapid, many patients have some early signs a few days or hours before the onset of the disease, which is called “stroke aura” in medical science. Especially in ischemic cerebrovascular disease, such aura can appear repeatedly. If timely recognition and active and effective treatment can be carried out, the patient can be turned to safety and prevent the occurrence of cerebrovascular disease. The key to the treatment of cerebrovascular disease is early detection and early treatment. The aura of ischemic cerebrovascular disease: Symptoms of motor nervous system include transient weakness or inflexibility of one side of the limb, distortion of the mouth and eyes, salivation at the corners of the mouth, aphasia, difficulty in swallowing, etc. Symptoms of the sensory nervous system include numbness of the face, tongue, lips, or limbs, as well as haziness in front of the eyes or momentary difficulty seeing, tinnitus or hearing changes, sometimes accompanied by dizziness or even transient memory loss. The symptoms develop rapidly and disappear quickly, usually lasting from a few seconds to tens of minutes, with complete recovery within 24 hours. This is caused by transient cerebrovascular insufficiency of blood supply, also known as transient ischemic attack, which can lead to cerebral infarction if treatment is not carried out in time. The main causes include atherosclerotic thrombotic cerebrovascular stenosis, thrombus dislodgement to form cerebral embolism or ischemic smog. Aura of hemorrhagic cerebrovascular disease: Some patients with hemorrhagic cerebrovascular disease usually have unexplained headache, vision loss, diplopia, tinnitus, intracranial murmur, seizure and other symptoms. If headache suddenly appears, along with dizziness, nausea, vomiting, drowsiness or coma, hemiparesis, hemiplegia, hemianopsia, hemianopsia, aphasia and other symptoms, this may be a precursor symptom of cerebral hemorrhage; if severe intolerable headache and neck pain suddenly appear, accompanied by nausea, vomiting or transient disturbance of consciousness, this may be a precursor of subarachnoid hemorrhage. Hemorrhagic cerebrovascular disease mainly includes hypertensive cerebral hemorrhage, ruptured aneurysm, arteriovenous malformation, hemorrhagic smog, etc. IV. What tests are needed when cerebrovascular disease is suspected? The examination methods include CT, CTA, MRI, MRA, SPECT, PET, DSA, neck ultrasound, etc.