Left heart failure alone is more serious than right heart failure alone. Left heart failure is a dysfunction of the left ventricle, the heart ejection is the blood supply circulation of the whole body, mainly the left ventricle, and the contribution of the left ventricle to the body’s body circulation is greater. In case of left heart failure, symptoms of dyspnea will be more severe, even to the point of telangiectatic breathing and edema, which are more severe than those of right heart failure. Most right heart failure alone is due to pulmonary diseases, such as chronic bronchopneumonia, emphysema, and pulmonary heart disease, which have a simpler etiology, and right heart failure is less severe than left heart failure. But what we often see clinically is not simple right heart failure and simple left heart failure, to the late stage of heart disease when coronary heart disease, wind heart disease, heart disease to the late stage of heart failure, often left heart failure will also lead to right heart failure caused by total heart failure, then the right heart failure is not simply like lung disease caused by right heart failure so simple, then the right heart failure is also very serious, in the treatment should be taken seriously.