Pulmonary hypertension in interstitial lung disease and in chronic obstructive pulmonary disease: different entities?

The development of PH in lung disease significantly worsens the morbidity and mortality of patients with COPD and ILD. However, recent findings show importance of recognizing distinct patterns and behaviors of pulmonary vascular disease, taking into account the specific underlying lung disease and severity of the hemodynamic involvement. Further studies are needed to build evidence on these aspects, especially in early disease.