Survival of patients with pulmonary heart disease is related to the control of the patient’s condition and cannot be generalized. Pulmonary heart disease, or pulmonary heart disease, is generally caused by the development of lung disease to a certain extent that leads to impaired blood circulation in the lungs, which in turn leads to heart disease. If patients with pulmonary heart disease treat and control the primary lung disease in a timely manner, the disease progresses slowly and a relatively long survival period can be obtained. If chronic lung disease is present and the primary disease is not controlled, patients with pulmonary heart disease may eventually develop complications such as respiratory failure, heart failure, pulmonary encephalopathy or pulmonary infections, and such patients have a shorter survival period, and may generally die within 5 years if no timely intervention is made. Lung diseases lead to a long course of pulmonary heart disease, i.e., any late stage of chronic lung disease can progress to pulmonary heart disease. Therefore, it is important for patients with chronic lung disease to intervene early to prevent infection and avoid progression to pulmonary heart disease.