What is High Altitude Pulmonary Edema (HAPE)?
HAPE is an accumulation of fluid in the air sacs of the lungs, due to leaky capillaries. It severely inhibits exchange of oxygen in the lungs, and can result in death . HAPE symptoms start gradually within the first 2-4 days at altitude. The earliest symptoms are shortness of breath with exercise, with decreased exercise performance. As more fluid accumulates in the lungs, symptoms progress to severe shortness of breath even at rest, a persistent cough sometimes with blood, chest tightness or congestion, and severe weakness. Untreated patients progress to unconsciousness, coma, and death.