High Altitude Pulmonary Edema
High altitude pulmonary edema (HAPE) is a life-threatening form of non-cardiogenic pulmonary edema (fluid accumulation in the lungs) that occurs in otherwise healthy mountaineers at altitudes typically above 2,500 meters (8,200 ft). Some cases, however, have been reported also at lower altitudes (between 1,500–2,500 metres or 4,900–8,200 feet in highly vulnerable subjects), although what makes some people susceptible to HAPE is not currently known. HAPE remains the major cause of death related to high-altitude exposure with a high mortality in absence of adequate emergency treatment.
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