What is pulmonary embolism

summary

Pulmonary embolism is a complex symptom of venous thrombosis. Pulmonary embolism is a disease caused by many factors. It brings inconvenience and trouble to patients' daily life. Now let's talk about what pulmonary embolism is.

What is pulmonary embolism

First, pulmonary embolism (PE) refers to the clinical and pathophysiological syndrome of pulmonary circulation disorder caused by endogenous or exogenous emboli blocking the pulmonary artery or its branches. Pulmonary thromboembolism (PTE) is the most common type.

Second, pulmonary embolism also includes other types of pulmonary thromboembolism, such as fat embolism, amniotic fluid embolism, air embolism, foreign body embolism and tumor embolism. Pulmonary hemorrhage or death after pulmonary embolism is called pulmonary infarction. The origin of pulmonary artery in situ is called pulmonary artery thrombosis.

Third: pulmonary embolism is often a complication of venous thrombosis. Emboli usually originate from the deep veins of the lower limbs and pelvis and circulate to the pulmonary artery to cause embolism. But it seldom comes from the veins of upper limbs, head and neck. Stasis of blood flow, increase of blood coagulation and injury of vein endothelium are the promoting factors of thrombosis.

matters needing attention

Patients with pulmonary embolism will have a series of adverse symptoms such as dyspnea, cough and abdominal pain. At the same time, patients with severe pulmonary embolism may cause shock and sudden death, so we need to pay more attention.