Dilated cardiomyopathy patients who are diagnosed and treated with medication generally have a 5-year survival rate of about 50% and a 10-year survival rate of about 25%, but this varies from person to person. Dilated cardiomyopathy is a cardiomyopathy characterized by enlargement of the left ventricle or both ventricles, accompanied by cardiac systolic dysfunction, which can be caused by viral infection, inflammation, genetics, poisoning and other factors, and the disease has a poor prognosis. It can be asymptomatic in the early stages, manifesting only as dyspnea and decreased activity, and in the long term it can have complications such as right heart failure, palpitations, and sudden death. Treatment includes smoking and alcohol cessation, surgery, anticoagulation and medication (e.g., captopril, chlorthalidomide, metoprolol succinate, etc.), which can usually be effectively controlled. If the disease is combined with severe arrhythmia or sudden death, the expected survival is less than 1 year. Treatment is recommended as directed.