What causes High Altitude Pulmonary Edema (HAPE)?
Etiology of HAPE is still mostly unknown. HAPE is considered to be caused by a leak in the alveolar capillary membrane. It is a noncardiogenic form of pulmonary edema. Some of the possible causes may include: • Pulmonary arterial vasoconstriction, • Fluid retention, • Rapid climb, • Physical exertion at high altitude, and • Cold temperatures.
