A 64‐year‐old female with a history of chronic thromboembolic pulmonary arterial
hypertension (CTEPH), moderate airway obstruction (forced expiratory volume in 1 second …

Several mechanisms enable healthy men to adapt rapidly to hypoxia at high altitude.
Hyperventilation increases the PAO2 by lowering alveolar PCO2. 2, 3 A rightward shift of the …

Introduction: Exposure to high altitude results in hypobaric hypoxia, leading to physiological
changes in the cardiovascular system that may result in dyspnea. Hypoxic simulation testing …

Exposure to high altitude results in hypobaric hypoxia, leading to physiological changes in
the cardiovascular system that may result in limiting symptoms, including dyspnea, fatigue …

Objective Patients with pulmonary arterial hypertension (PAH) are often recommended
supplemental oxygen for altitude travel due to the possible deleterious effects of hypoxia on …

A 79-year-old slender female patient presented at the pulmonary function laboratory to
perform a hypoxia altitude simulation test (HAST). It was indicated on the basis of her …

Smith TG, Talbot NP, Chang RW, Wilkinson E, Nickol AH, Newman DG, Robbins PA,
Dorrington KL. Pulmonary artery pressure increases during commercial air travel in healthy …

A large number of patients with underlying pulmonary disease travel by air each year and
are therefore at risk for significant cardiopulmonary effects of induced hypoxia at higher …

The major risk factors for acute high altitude illnesses are the history of acute high altitude
illnesses on previous exposures, the altitude exposures in the weeks preceding the ascent …

Wiseman RL, Kelly PT, Swanney MP, McNamara KP, Beckert L. Hypoxemia in healthy
subjects at moderate altitude. Aviat Space Environ Med 2013; 84: 22–6. Background …