Heart failure is a major public health issue,which has a high prevalence,incidence and mortality,and has seriously affected people's life and survival.Although domestic and international guidelines have clearly stated how to standardize the use of drugs for the treatment of heart failure and improve prognosis,the patients' utilization rate of the related drugs in the guidelines is unsatisfied.In addition,the readmission inducements of patients with heart failure are very complex,which results in a higher ra...