The brain is the most important organ of the human body. Although its weight only accounts for 2% of the whole body weight, its blood accounts for 15% of the whole body blood circulation. The oxygen consumption of brain is 20% of that of adults and 40% of that of children. Brain tissue is also an organ rich in liquid, water.
The percentage is 80%. Once water and electrolyte accumulate pathologically in brain tissue, it will cause hydrocephalus, directly endanger the life center and even cause serious consequences.
Hydrocephalus can be caused by many reasons, all of which are involved in clinic. Intracranial inflammation, cerebrovascular disease, brain injury, various endogenous or exogenous neurotoxins, hypoxic water-electrolyte disorder, acidosis, liver and kidney failure, etc. can all cause fluid accumulation in brain tissue through different mechanisms.
(1) can lead to mental retardation, but only mild memory and calculation ability decline, often accompanied by dullness, indifference, silence and so on. In severe cases, it can be dementia. A few people may be excited, irritable, impetuous, hallucinating, delirium, etc.
② It will lead to dyskinesia, which often starts gradually after the appearance of mental symptoms, making it difficult to start and walking slowly and unsteadily. Muscle tension and tendon reflex are often increased, and the reflex is positive. Sometimes it shows mild hemiplegia.
③ Frequent urination and defecation difficulties, incontinence or difficulty in defecation, sometimes only in the late stage.
In addition, dizziness, transient disturbance of consciousness, nystagmus, persson syndrome, etc.