Digital Assessment of Real-World Walking Activity in Pulmonary Hypertension: A Prospective Multicenter Trial

Who May Qualify: - Pulmonary hypertension confirmed by right heart catheterization - Presence of precapillary pulmonary hypertension at time of recruitment, defined as mean pulmonary arterial pressure (MAP) ≥ 20 mmHg, pulmonary arterial wedge pressure (PAWP) ≤ 15 mmHg and pulmonary vascular resistance (PVR) \> 2 Wood units (160 dyn·s·cm-5) - After the right heart catheterization another follow-up visit is required in 3, 6, or 12 months - Independent walking without assistance and a 6-min walking distance \> 100m - WHO Functional Class I-III - Ability to provide willing to sign a consent form and to participate in the study procedures - Willingness to wear the Axivity AX6 Sensor for 7 days Who Should NOT Join This Trial: - Hospitalization for a pulmonological disease within the 30 days prior to study recruitment - Neurological or orthopedic disease which limits walking ability - Acute pain which limits walking ability - Poor vision, which limits walking ability - Terminal illness with life expectancy \< 1 year - Ongoing treatment for malignancy - Acute psychosis or other severe psychiatric illness - Substance dependence Always talk to your doctor about whether this trial is right for you.