Pulmonary Arterial Hypertension Clinical Trial
Official title:
Exercise Performance on Ambient Air vs. Commonly Prescribed Nasal Low Oxygen Therapy - a Non-inferiority Trial in Patients With Exercise Induced Desaturation Due to Pulmonary Vascular Disease (PVD)
The investigators aim to study the effect of SOT in Swiss residents with pulmonary vascular diseases (PVD) defined as pulmonary arterial hypertension (PAH) or chronic thromboembolic pulmonary hypertension (CTEPH).
Participants with PVD diagnosed with precapillary PH with right heart catheterization and classified to groups 1 and 4 (PAH or CTEPH) who live in Switzerland will have 6-minute walk distance (6MWD) test with and without SOT approximately 3l/min via nasal cannula according to a randomized cross-over design. The trial aims to test that the 6MWD with SOT is non-inferior to a 6MWD in the same participant under ambient air. The effect size was estimated with a difference of less or equal to 35m compared under SOT compared to ambient air. ;
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