Persistent pulmonary hypertension and right ventricular function after percutaneous mechanical thrombectomy in severe acute pulmonary embolism

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Abstract
Acute pulmonary embolism is one of the main causes of death, morbidity and hospitalisation [1, 2]. The most common cause of early death in these patients is right ventricular failure [1–3]. Complete resolution of the pulmonary thrombus at 6 months of evolution is not achieved in 57% of patients, with persistent right ventricular dysfunction (RVD) in 6–8% of patients and persistent pulmonary arterial hypertension (PAH) in 7–13.5% of patients who received treatment with heparin or fibrinolytic agents [4–8]. Percutaneous mechanical thrombectomy (PMT) is accepted as a treatment in patients with high-risk acute pulmonary embolism with contraindications to systemic thrombolysis or when the treatment has failed [1, 2, 9]. Percutaneous mechanical thrombectomy in acute PE restores right ventricle function in most patients at 40 months

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