Inoperable chronic thromboembolic pulmonary hypertension: Evolution of prognosis over 10 years of new emerging therapies

High-risk acute pulmonary embolism (PE) is associated with significant in-hospital mortality. Large-Bore Mechanical Thrombectomy (LBMT) is a treatment option for acute PE, but data on its efficacy in high-risk PE was limited. This prospective case series reported the outcomes of 14 patients with high-risk PE treated using a novel multipurpose mechanical aspiration system (MMAS). 

Chronic thromboembolic pulmonary hypertension (CTEPH) is a complication of pulmonary embolism that is characterized by chronic obstruction of pulmonary arteries because of organized thrombi. Pulmonary endarterectomy (PEA) is the primary treatment of choice for CTEPH, which aims to clear the pulmonary arteries as completely as possible to decrease right ventricular afterload, thereby improving pulmonary hypertension (PH).

Chronic thromboembolic pulmonary hypertension (CTEPH) is a rare but severe complication of pulmonary embolism (PE), yet its underlying mechanisms remain poorly understood. Peptidyl-prolyl cis/trans isomerase (Pin1), a regulatory enzyme involved in thrombosis, inflammation, and vascular remodeling, may contribute to pulmonary vascular disease. 

During the COVID-19 pandemic, Brazil was one of the most affected countries. Patients presented higher risk of acute venous thromboembolism (VTE), in particular, pulmonary embolism (PE).