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High-altitude cerebral edema (HACE) is a medical condition in which the brain swells with fluid because of the physiological effects of traveling to a high altitude. It generally appears in patients who have acute mountain sickness and involves disorientation, lethargy, and nausea among other symptoms.
Acute mountain sickness can progress to high-altitude pulmonary edema (HAPE) with associated shortness of breath or high-altitude cerebral edema (HACE) with associated confusion. [1] [2] Chronic mountain sickness may occur after long-term exposure to high altitude. [2]
Very high altitude = 3,500–5,500 metres (11,500–18,000 ft) Extreme altitude = above 5,500 metres (18,000 ft) Travel to each of these altitude regions can lead to medical problems, from the mild symptoms of acute mountain sickness to the potentially fatal high-altitude pulmonary edema and high-altitude cerebral edema .
These hypoxia-related illnesses include acute mountain sickness (AMS), high-altitude pulmonary edema, and high-altitude cerebral edema (HACE). [6] High-altitude cerebral edema is a severe and sometimes fatal form of altitude sickness that results from capillary fluid leakage due to the effects of hypoxia on the mitochondria-rich endothelial ...
High-altitude pulmonary edema (HAPE) is a life-threatening form of non-cardiogenic pulmonary edema that occurs in otherwise healthy people at altitudes typically above 2,500 meters (8,200 ft). [2] HAPE is a severe presentation of altitude sickness .
This illness starts from a few hours up to two or three days after ascension to a high altitude. There exist two cases: acute cerebral edema and acute pulmonary edema. The first one is caused by the vasodilatation of the cerebral blood vessels produced by the hypoxia; the second one is caused by the vasoconstriction of the pulmonary arterioles ...
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High-altitude cerebral edema: HACEK: acronym for a group of bacteria that are a frequent cause of endocarditis in children HAD: HIV-associated dementia: HADS: Hospital Anxiety and Depression Scale: HAE: hereditary angioedema: H/A: headache: HAI: healthcare-associated infection or hospital-acquired infection: HALE: health-adjusted life ...