Survival time in heart failure combined with expiratory failure is related to the severity of the condition and the type of treatment. There are many causes of heart failure and expiratory failure, such as heart disease, coronary artery disease and myocardial dilatation, etc. After the onset of the disease, the patient will experience symptoms such as shortness of breath, dyspnea and cyanosis, and the survival time will be shortened dramatically, and in severe cases, the survival time is even only about a week. However, if the patient can be effectively controlled at an early stage, given a certain amount of oxygen therapy, and appropriately take some drugs, such as sildenafil, then the survival time may be extended to one month. In addition to actively cooperating with the doctor’s treatment, patients should adopt healthy diet and living habits, pay attention to balanced nutrition, drink more water, take more rest, and try not to stay up all night, so as to effectively reduce the risk of the disease.