The main reasons for the formation of pulmonary hypertension are heart disease, pulmonary disease, double lower extremity thrombosis, primary pulmonary hypertension and so on.
1. Heart disease: heart disease is the most common cause of pulmonary hypertension in clinical practice. For example, common coronary atherosclerotic heart disease, hypertension, myocardial diseases, heart valve diseases, etc. can cause structural abnormality of the heart, causing abnormal function of the left heart, causing pulmonary circulation disorders, leading to pulmonary hypertension.
2. Pulmonary diseases: Lung diseases such as chronic bronchitis, emphysema, pulmonary heart disease and other diseases often cause pulmonary insufficiency, resulting in pulmonary circulatory disorders, leading to pulmonary hypertension.
3. Bilateral lower extremity thrombosis: after dislodgment of bilateral lower extremity venous thrombosis, the dislodged embolus comes to the pulmonary artery with the blood flow to cause pulmonary artery embolism, resulting in pulmonary arterial hypertension.
4. Primary Pulmonary Hypertension: Primary pulmonary hypertension refers to pulmonary hypertension that occurs when the patient does not have other diseases and triggers. At present, the etiology of primary pulmonary hypertension is not clear, and it is thought to be related to genetic factors and immune function.
5. There are other causes such as secondary to certain diseases such as connective tissue disease, congenital heart disease, blood disease and so on.
Precautions: Pulmonary hypertension is dangerous and should be treated in a hospital in time.