Keywords: cerebral infarction reasons
Cerebral infarction is what causes? Cerebral infarction caused mainly due to the results of lesions within the brain of blood and vascular lesions simultaneously. Lead to cerebral vascular blockage, the blood lipid substances or stenosis, cerebral vascular dysfunction caused celebrated by symptoms of cerebral vascular accident disease. Brain blood vessel blockage, it led directly to the brain blood disorder caused brain tissue ischemia, hypoxia and necrosis, softening the formation and necrosis of thrombosis location and size of a difference.
1, vascular lesions:
Vascular wall lesions to atherosclerosis (about 70% of patients with cerebrovascular disease), arteritis (rheumatism, tuberculosis, etc.), congenital abnormalities (aneurysms, vascular malformations, etc.), trauma, poisoning, cancer, etc.;
2, blood disorders:
① increased blood viscosity. Such as hyperlipidemia, hyperglycemia, hyperlipidemia high-protein, dehydration, polycythemia, leukemia, thrombocytosis psychosis;
② abnormal blood clotting mechanism. Thrombocytopenia purpura, hemophilia, anticoagulants, disseminated intravascular coagulation. In addition, pregnancy, postpartum, after surgery and taking birth control pills can cause easy condensate status;
3, hemodynamic changes
(Accounting for about 55% -75%) of the non-embolic cerebrovascular disease such as hypertension, hypotension, cardiac dysfunction (heart failure, coronary artery disease, atrial fibrillation, conduction block);
(1) the extravascular factors, mainly the large blood vessels adjacent to the lesions (eg, cervical spondylosis, tumors, etc.) oppression, affecting insufficiency;
② the extracranial formation of various emboli.
The clinical symptoms of cerebral infarction: hemiplegia (hemiplegia), hemi physical disabilities, hemianopia, aphasia. Or cross paralysis, cross-sensory disturbances, external ophthalmoplegia, nystagmus, configuration language difficulties, language barriers, memory loss, Kouyanwaixie, difficulty swallowing, choking choke with water, ataxia, dizziness, headache, etc.. The root cause of these symptoms is to blockage due to cerebral artery thrombosis. If clogged the middle cerebral artery, the former group of the above symptoms. If the blockage vertebral artery occurs after a group of symptoms.