The classification of pulmonary hypertension is as follows!

From the clinical manifestations, according to the condition of the pulmonary artery, it can be divided into mild, moderate and severe pulmonary hypertension. If it is divided according to the function of pulmonary hypertension, it can be divided into the following four levels:

1. Classification

1. Stage I pulmonary hypertension

The patient's daily activities are not restricted, and the patient does not experience dyspnea, fatigue, chest pain, or presyncope symptoms after daily activities.

2. Grade II pulmonary hypertension

Patients have mild limitation of activity and no discomfort when at rest, but daily activities may lead to dyspnea, fatigue, chest pain, or presyncope.

3. Grade III pulmonary hypertension

The patient's activities are significantly limited. The patient does not feel uncomfortable when at rest, but symptoms of dyspnea, fatigue, chest pain, or presyncope occur at a level lower than the intensity of daily activities.

4. Grade IV pulmonary hypertension

The patient cannot perform any activities. He shows symptoms of right heart failure even at rest, and any activities will aggravate his symptoms.

Pulmonary hypertension refers to a hemodynamic and pathophysiological state in which the pulmonary artery pressure rises above a certain threshold, which can lead to right heart failure. It can be an independent disease, a complication, or a syndrome. The hemodynamic diagnostic criteria are: at rest at sea level, the mean pulmonary artery pressure detected by right cardiac catheterization is ≥25 mmHg. Pulmonary hypertension is a common and frequently occurring disease with high disability and mortality rates, and should be taken seriously.

2. Prevention

1. Primary prevention: For the general population, promote a healthy lifestyle, quit smoking, limit alcohol consumption, use diet pills with caution, etc.

2. Secondary prevention: For high-risk groups, especially those with underlying diseases listed in the classification table, such as congenital heart disease, connective tissue disease, portal hypertension, lung disease, chronic pulmonary embolism, HIV infection, those taking diet pills, central appetite suppressants, and those with a family history of idiopathic pulmonary hypertension or hereditary pulmonary hypertension, they should pay attention to monitoring, actively control and treat the primary disease, and detect pulmonary hypertension in time.

3. Tertiary prevention: For patients with pulmonary hypertension, the prognosis should be improved, active treatment should be given, and factors that aggravate pulmonary hypertension, such as pregnancy, colds, and heavy physical activities, should be avoided.