Effect Evaluation of Chain Quality Control Management on Patients With Heart Failure

Inclusion Criteria

• •1\. Patients with BNP \> 100ng/ml in laboratory examination or LVEF \< 50% in ultrasound ECG; 2. Meeting the CHF diagnostic criteria of the Chinese Guidelines for the Diagnosis and Treatment of Heart Failure 2018; 3. Patients with cardiac function stage A-C: stage A, patients with high risk factors for heart failure (hypertension, coronary heart disease, diabetes and obesity, metabolic syndrome, history of cardiotoxic drugs, history of alcoholism, history of rheumatic fever, family history of cardiomyopathy, etc.); In stage B, cardiac structural changes (left ventricular hypertrophy, asymptomatic valvular heart disease, previous myocardial infarction) were present; In stage C, the patient has structural changes in the heart and has symptoms and/or signs of heart failure (dyspnea, fluid retention, edema of both lower limbs, etc.) in the past or present; 4. Patients with NYHA (New York Cardiology Society) cardiac function grade I to IV; 5. Age \> 18, both sexes; 6. No mental disorder, clear consciousness and normal communication; 7. Non-pregnant and lactating women;