Published: 13 January 2023
Author(s): Rui Zhu, Gang-Yi Cheng, Gentian Denas, Vittorio Pengo
Issue: May 2023
Section: Review Article

Pulmonary hypertension (PH) is a chronic progressive condition characterized by an increase of mean pulmonary artery pressure above 25 mmHg at rest. Chronic thromboembolic pulmonary hypertension (CTEPH) is classified as a separate group (group IV), resulting from an incomplete resolution of pulmonary embolism (PE) and formation of chronic obstruction in the main pulmonary arteries [1]. The accepted criteria for the diagnosis of CTEPH is the presence of pre-capillary hypertension with at least one segmental perfusion defect on lung scan and typical findings on conventional pulmonary angiography or computed tomographic angiography after at least 3 months of anticoagulation [2].


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