label: chronic thromboembolic pulmonary hypertension
label_lc: chronic thromboembolic pulmonary hypertension
description: Chronic thromboembolic pulmonary hypertension (CTEPH) is characterized by the persistence of thromboemboli in the form of organized tissue obstructing the pulmonary arteries. The consequence is an increase in pulmonary vascular resistance (PVR) resulting in pulmonary hypertension (PH) and progressive right heart failure.