What is the cause of stroke? The main cause of stroke is the simultaneous action of blood lesions and vascular lesions in brain tissue. Due to lipid substances in the blood or lumen stenosis, cerebrovascular blockage, cerebrovascular dysfunction and corresponding symptoms are caused. However, due to cerebral vascular occlusion, the blood supply to the brain is directly damaged, leading to ischemia and hypoxia of brain tissue, leading to necrosis and softening. The degree of necrosis varies with the location and size of thrombus.

Cause of disease:

1, vascular diseases:

Atherosclerosis (about 70% patients are accompanied by cerebrovascular diseases), arteritis (rheumatism, tuberculosis, etc. ), congenital anomalies (aneurysms, vascular malformations, etc. ), trauma, poisoning, tumor, etc.

2, blood lesions:

① Blood viscosity increases. Such as hyperlipidemia, hyperglycemia, hyperproteinemia, dehydration, polycythemia, leukemia and thrombocytosis.

② Abnormal coagulation mechanism. Such as thrombocytopenic purpura, hemophilia, application of anticoagulant, disseminated intravascular coagulation, etc. In addition, pregnancy, postpartum, after surgery and taking birth control pills will cause easy coagulation;

3. Hemodynamic changes

Such as hypertension (about 55%-75% of non-embolic cerebrovascular diseases), hypotension, cardiac insufficiency (heart failure, coronary heart disease, atrial fibrillation, conduction block) and so on.

4. Others

① The influence of extravascular factors is mainly the compression of pathological changes (such as cervical spondylosis and tumor). ) adjacent to large blood vessels, affecting insufficient blood supply;

② Various emboli formed outside the skull.

Clinical symptoms:

The main clinical symptoms of stroke are hemiplegia, hemiplegia, hemiplegia, hemianopia and aphasia. Or cross paralysis, cross sensory disturbance, extraocular muscle paralysis, nystagmus, dysarthria, language disorder, memory loss, mouth-eye deviation, dysphagia, food and water choking, ataxia, dizziness and headache. The root cause of the above symptoms is that thrombus blocks the cerebral artery. If the middle cerebral artery is blocked, the first group of symptoms mentioned above will appear. If the vertebrobasilar artery is blocked, the latter group of symptoms will appear.

Diagnostic method:

1, electrocardiogram, echocardiography, chest X-ray and blood pressure monitoring can provide signs of primary diseases, such as hypertension and different types of heart diseases.

2. Cranial X-ray sometimes shows calcification shadow in siphon of internal carotid artery; The midline wave shift can occur 2-3 days after the onset of infarction and last for about 2 weeks.

3. Cerebral angiography can find arterial occlusion or stenosis, as well as vascular compression, displacement and collateral circulation caused by brain edema.

4. Brain CT and MRI can show the location and size of cerebral infarction, signs of peripheral brain edema and bleeding, etc. It is the most reliable noninvasive diagnostic method.

Dietary health care:

Eating more fiber-rich foods, such as vegetables, fruits, brown rice, whole grains and beans, can help defecate, prevent constipation, stabilize blood sugar and lower blood cholesterol. Vegetable oil is selected and cooked by boiling, steaming, cold salad, burning, roasting, marinating and stewing. Fasting fatty meat, viscera, fish eggs, cream and other foods with high cholesterol; You can choose fish with less fat and skinless chicken. Whole eggs can be eaten every week 1-2. Milk and its products, grains and roots, meat, fish, beans and eggs, vegetables, fruits and oils should be ingested through various channels to fully obtain various nutrients.