Chronic subdural hematoma occurs in elderly people, after brain atrophy, brain volume decreases while cranial cavity space remains unchanged, resulting in a corresponding space between the two (subdural space). When the hematoma increases to the point of obvious pressure on the brain, symptoms will gradually appear, such as headache, dizziness, impaired body movement, speech impairment, etc. Due to the slow progress of the disease, it is not easy to detect, and the slowly increasing hematoma can even reach more than 200 ml.
In chronic subdural hematoma, the head CT shows crescentic isodensity or bottom density shadow in the subdural space, if it is slightly high density shadow, it may be subacute subdural hematoma (treatment is the same as chronic subdural hematoma), if it is obviously high density and there is clear trauma, etc., acute subdural hematoma is considered (the condition is serious, depending on the situation, conservative or craniotomy treatment).
Chronic subdural hematoma, treatment, drilling and drainage is the most simple and effective, less trauma, less complications, faster recovery, less recurrence rate, a small incision on the scalp, a hole in the skull, put a drainage tube to drain the hematoma, part of the difficult to drain the hematoma can even play drugs to melt it and then drain, the more hematoma drainage, the more the compressed brain tissue re-expanded, the better the effect, after surgery, according to the head CT The treatment is completed when the drainage tube is removed.