“…Among the 5 clinical subgroups of PH, the most common is idiopathic pulmonary arterial hypertension (PAH), associated with increased morbidity and mortality rate. 1 Exercise capacity, WHO functional class, hemodynamic values, findings on imaging, and biomarkers of myocardial dysfunction are parameters used to predict the survival of patients with PH. 2 This is a great clinical challenge; the improvement of patients' quality of life and the variability between therapies worsens because a proper care provider decision is expected since it might affect the outcome.…”