Once a person loses his strength, he is like a piece of rotten meat and can’t do anything. However, it is impossible to really have every bit of strength. This feeling only appears when the body feels uncomfortable or suffers from some disease. In life, some friends feel weak, dizzy, nauseous and want to vomit. What is this disease? Cerebral ischemia refers to insufficient blood supply to a certain part of the brain, which causes brain function disorders. The causes of insufficient blood supply to the brain are often related to cerebral arteriosclerosis. The incidence of cerebral ischemia is high. According to statistics, 80% of people over 80 years old suffer from cerebral ischemia, and 70% of people over 60 years old suffer from cerebral ischemia to varying degrees. The main symptoms are recurrent dizziness, lightheadedness, and headaches, often accompanied by restlessness, tinnitus, irritability, insomnia, memory loss, inattention, and forgetfulness. Studies have shown that if insufficient blood supply to the brain is not treated promptly, it may cause cerebral infarction or even dementia. Causes 1. Dislocation of the atlantoaxial joint and C5 and C6 joints of the cervical vertebrae stimulates the vertebral artery, causing stenosis of the arterial lumen or vasospasm, reducing the blood flow and causing insufficient blood supply to the supplied brain area. 2. Hemodynamic disorder: when blood pressure drops and cardiac output decreases, the brain tissue is not supplied with enough blood. 3. Increased blood viscosity, slow blood flow and changes in blood components caused by certain reasons may also cause insufficient blood supply. 4. Microthrombosis. Microthrombosis is the detachment of atherosclerotic plaques, which form microemboli in the blood flow. They flow to the small arteries and block the blood vessels, resulting in local blood supply deficiency in the brain. Classification Clinically, cerebral ischemia is divided into acute and chronic. Acute cerebral ischemia (acute cerebral ischemia) is a common disease in the elderly and has been given more attention clinically, while chronic cerebral ischemia rarely attracts people's attention. |
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