Why does epidural hematoma cause persistent anesthesia?

Epidural hematoma and subdural hematoma are two common types of intracranial hematoma in clinical practice. In simple terms, there is a layer of dura mater in the brain. The hematoma that occurs between the epidural layer and the skull is called epidural hematoma. , A hematoma that develops between the dura and brain tissue is called a subdural hematoma. Sometimes this film is like opening an egg, the film inside the hard shell, which can be easily understood. Epidural hematoma is generally an acute hematoma, which often occurs in various types of traumatic brain injury, such as car accident injury, fall injury, etc. Once it occurs, it needs to be diagnosed as soon as possible. Many patients need surgery as soon as possible. The effect will be very good after surgery. However, if surgery is not done in time, the patient may even have brain herniation within a few hours, even life-threatening. Once a subdural hematoma occurs, if it is an acute hematoma, it often indicates a severe craniocerebral injury, and an emergency craniotomy is usually required to remove the hematoma. For a relatively small amount of subdural hematoma, conservative treatment can be performed to gradually absorb it. In this process, we also need to remind everyone that middle-aged and elderly people are prone to chronic subdural hematoma, which sometimes occurs 1-3 months after trauma, or even longer. If the patient has weakness on one side of the limb, lethargy or partial sensory disturbance, or slurred speech, head CT or MRI should be reviewed in time to find out whether there is a chronic subdural hematoma.

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