Ying-bo Qiu

Introduction Pulmonary embolism (PE) refers to the obstruction of the pulmonary artery caused by dislodged thrombi, primarily originating from deep veins in the lower extremities or pelvis. In severe cases, PE can precipitate acute right heart failure or obstructive shock. Clinically, it often presents as acute chest pain and dyspnoea [1], with some patients experiencing episodes of syncope [2, 3].