High altitude cerebral edema
High altitude cerebral edema is a serious disorder of central nervous system function caused by acute hypoxia. It is characterized by rapid onset and clinical manifestations of severe headache, vomiting, ataxia, and progressive disturbance of consciousness. The main pathological changes are ischemic or hypoxic damage to brain tissue and cerebral circulation disorders, resulting in cerebral edema and increased intracranial pressure. If not treated properly, it is often life-threatening. In China, it was previously called high altitude coma, cerebral mountain sickness, acute high altitude encephalopathy, and high altitude cerebral hypoxia syndrome.