High altitude-induced pulmonary oedema.

Unravelling the Pathogenesis of Severe COVID-19 Pneumonia: Are There Possible Insights From High Altitude?

Ultrastructure of high altitude pulmonary oedema.

Heath, D., Moosavi, H., and Smith, P. (1973). Thorax, 28, 694-700. Ultrastructure of high altitude pulmonary oedema. When rats are exposed for 12 hours to simulated high altitude corresponding to the summit of Mount Everest, they develop ultrastructural changes in the lungs. These consist of the formation and protrusion of multiple endothelial vesicles into the pulmonary capillaries. It seems l...

High altitude impairs nasal transepithelial sodium transport in HAPE-prone subjects.

High-altitude pulmonary oedema (HAPE) occurs in predisposed individuals at altitudes >2,500 m. Defective alveolar fluid clearance secondary to a constitutive impairment of the respiratory transepithelial sodium transport contributes to its pathogenesis. Hypoxia impairs the transepithelial sodium transport in alveolar epithelial type II cells in vitro. If this impairment is also present in vivo,...

Stress failure and high-altitude pulmonary oedema: mechanistic insights from physiology.

H igh-altitude pulmonary oedema (HAPE) is a potentially fatal altitude illness affecting individuals within 2–4 days of rapid ascent to altitudes above 3,000 m. Although a minority of high-altitude travellers develop HAPE [1], there is some suggestion that many develop subclinical fluid accumulation without overt alveolar flooding [2]. The inciting mechanism of the injury to the lung in HAPE st...

High altitude pulmonary oedema (HAPE) in an Indian pilgrim.

Increasing number of Hindu pilgrims visit the Himalayas where some of them suffer from high altitude illness including the life threatening forms, high altitude pulmonary oedema (HAPE) and high altitude cerebral oedema. Compared to tourists and trekkers, pilgrims are usually ignorant about altitude illness. This is a case of a pilgrim who suffered from HAPE on his trip to Kailash-Mansarovar and...