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Chronic thromboembolic pulmonary hypertension (CTEPH) is a long-term disease caused by a blockage in the blood vessels that deliver blood from the heart to the lungs (the pulmonary arterial tree). These blockages cause increased resistance to flow in the pulmonary arterial tree which in turn leads to rise in pressure in these arteries ...
In chronic thromboembolic pulmonary hypertension, or CTEPH (WHO Group IV), the initiating event is thought to be blockage or narrowing of the pulmonary blood vessels with unresolved blood clots; these clots can lead to increased pressure and shear stress in the rest of the pulmonary circulation, precipitating structural changes in the vessel ...
Pulmonary embolism; A lung illustration depicting a pulmonary embolism as a thrombus (blood clot) that has travelled from another region of the body, causes occlusion of the pulmonary bronchial artery, leading to arterial thrombosis of the superior and inferior lobes in the left lung: Specialty: Hematology, cardiology, pulmonology, Emergency ...
[4] [6] VTE can also cause long-term complications, such as recurrent VTE, post-PE syndrome, chronic thromboembolic pulmonary hypertension (CTEPH), and post-thrombotic syndrome (PTS). The mainstay of VTE management is anticoagulation therapy, which prevents thrombus propagation and embolization.
Venous thrombosis can lead to pulmonary embolism when the migrated embolus becomes lodged in the lung. In people with a "shunt" (a connection between the pulmonary and systemic circulation), either in the heart or in the lung, a venous clot can also end up in the arteries and cause arterial embolism. [citation needed]
Echocardiography is the preferred screening test in the diagnosis of PAH as it accurately estimates pulmonary pressures. [1] Other causes of pulmonary hypertension, such as left heart disease (WHO group 2), pulmonary hypertension due to lung disease (such as COPD)(WHO group 3) and pulmonary hypertension due to chronic blood clots in the ...
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