Diagnosis Patients with slow branching, emphysema, other pulmonary thoracic disease or pulmonary vascular disease causing pulmonary hypertension, right ventricular enlargement or right heart insufficiency manifestations, such as jugular vein anger, hepatomegaly and pressure pain, positive hepatocervical reflux sign, lower limb swelling, etc., and the aforementioned ECG and X-ray manifestations, with reference to echocardiography, pulmonary function or other tests, can make the diagnosis. Differential diagnosis 1. Coronary atherosclerotic heart disease Coronary heart disease has a typical history or ECG manifestation of angina pectoris and myocardial infarction, and a history of left heart failure, hypertension, hyperlipidemia and diabetes mellitus is more helpful for differentiation. Physical examination, X-ray and electrocardiogram examination shows signs of left ventricular hypertrophy. 2, rheumatic heart valve disease rheumatic heart disease tricuspid valve disorders should be distinguished from pulmonary heart disease relative tricuspid valve closure insufficiency. The former often have a history of rheumatoid arthritis and myositis, other valves such as mitral valve, aortic valve often have lesions, X-ray, electrocardiogram, echocardiography have special performance. 3, primary cardiomyopathy The disease is mostly whole heart enlargement, no chronic respiratory treatment 1, acute exacerbation period (1) control of infection refer to sputum culture and drug sensitivity test to select antibiotics. Commonly used are penicillins, aminoglycosides, quinolones and cephalosporins antibiotics. In principle, narrow-spectrum antibiotics are used as the main choice, and attention must be paid to possible secondary fungal infections when choosing broad-spectrum antibiotics. (2) Oxygen therapy to ventilate the airway, correct hypoxia and carbon dioxide retention. (3) Control of heart failure Patients with pulmonary heart disease generally have improved heart failure after active control of infection and improvement of respiratory function. The patient’s urine output increases, edema subsides, and the enlarged liver shrinks and pressure pain disappears. No additional diuretics are needed, but diuretics, cardiotonic or vasodilators can be used appropriately for more severe patients who are ineffective after treatment. (4) Arrhythmia control Generally, arrhythmia can disappear on its own after treatment of infection and hypoxia of pulmonary heart disease. If the arrhythmia persists, drugs can be selected according to the type of arrhythmia. 2.Relief period A combination of Chinese and Western medicines is used to enhance the patient’s immune function, remove triggering factors, reduce or avoid the occurrence of acute exacerbations, and gradually make partial recovery of lung and heart function. History of disease, no X-ray manifestation of pulmonary hypertension, etc.