There is no such thing as a precursor to the death of pulmonary heart disease, except that most patients will experience respiratory failure and right heart failure in the late stages of the disease. Pulmonary heart disease is also known as pulmonary heart disease, the patient’s condition, treatment programs are not the same, so in the specific survival time is no way to determine, also does not exist in the heart of the death of the precursor to the statement, only with the aggravation of the disease, in the late stage of many patients with pulmonary heart disease will be accompanied by respiratory failure, right heart failure, and a serious cough, wheezing and other manifestations. The lung function of patients with advanced pulmonary heart disease has been seriously affected, and they cannot exchange oxygen and carbon dioxide, thus causing respiratory failure such as dyspnea, panic and shortness of breath, coma, etc.; coupled with the right ventricle’s prolonged overload, the structure and function of the right ventricle are seriously damaged, which makes it difficult for blood to be pumped out, and the venous blood of the body cannot be returned to the right ventricle, which eventually leads to the failure of the right heart. Pulmonary heart disease requires active treatment under the guidance of a doctor to stabilize the condition and improve symptoms.