By Dr Deepa Gopalan
Introduction:
Chronic thromboembolic disease (CTEPH) is a dual vascular disorder related to incomplete resolution of pulmonary embolism (PE) and is placed under Group 4 of the revised
clinical classification of pulmonary hypertension (PH) [1]. The current definition of CTEPH is a mean pulmonary artery pressure of ≥25 mmHg, a pulmonary capillary wedge pressure of ≤15mmHg and the presence of organised thrombi in the pulmonary artery after at least 3 months of anticoagulant treatment [2].