What Researchers Did
Researchers assessed the hemodynamic response of patients with pulmonary arterial or chronic thromboembolic pulmonary hypertension (PAH/CTEPH) during right heart catheterization while breathing ambient air, moderate hypoxia, and hyperoxia.
What They Found
The study found that very short-term exposure to moderate hypoxia, simulating 2600 meters altitude or commercial air travel, did not deteriorate hemodynamics in patients with PAH/CTEPH. The abstract did not provide specific numerical changes in hemodynamic parameters for the different gas mixtures.
Canadian Relevance
This study has no direct Canadian connection as it was not conducted in Canada, nor did it involve Canadian researchers or patients.
Study Limitations
A key limitation is the very short-term nature of the hypoxic exposure, which may not fully reflect the effects of longer duration altitude or air travel.