The purpose is to understand the clinical characteristics of chronic heart failure as soon as possible, analyze the etiology, comorbidities, clinical characteristics, and treatment of heart failure patients, observe the gap between real-world clinical practice and guideline recommendations, and provide reference for the improvement of heart failure prevention and treatment in China.

Inclusion criteria:

1. Accompanied by difficulty breathing, fatigue, or decreased activity tolerance;
2. Signs of fluid retention (pulmonary congestion and peripheral edema);
3. Echocardiography shows abnormalities in cardiac structure and/or function;
4. Elevated levels of natriuretic peptide: B-type natriuretic peptide (BNP)>35 ng/L and/or N-terminal B-type proBNP (NT proBNP)>125 ng/L.
5. HF hospitalization recorded within the previous 12 months

Exclusion criteria:

1. Concomitant severe liver function, renal failure, or other severe system dysfunction
2. Poor compliance, inability to obtain information, or voluntary refusal to participate in this study.

Inclusion Criteria:

1. Accompanied by difficulty breathing, fatigue, or decreased activity tolerance;
2. Signs of fluid retention (pulmonary congestion and peripheral edema);
3. Echocardiography shows abnormalities in cardiac structure and/or function;
4. Elevated levels of natriuretic peptide: B-type natriuretic peptide (BNP)>35 ng/L and/or N-terminal B-type proBNP (NT proBNP)>125 ng/L.

Exclusion Criteria:

1. Concomitant severe liver function, renal failure, or other severe system dysfunction
2. Poor compliance, inability to obtain information, or voluntary refusal to participate in this study.

undecided