During the last decade, progress has been made in the management of heart failure. However, the changing characteristics of patients and practices in the "real world" and their impact on the prognosis of patients admitted for acute heart failure remain poorly studied.

2000 consecutive patients recruited in a single day in hospitals volunteered to participate in the cohort during a day dedicated.

The total duration of recruitment is one day (date to be set soon by the Executive Committee): all patients hospitalized, and whatever their date of admission with the diagnosis of heart failure will be selected for the study.

Information on each hospital stay will be obtained at baseline and at the end of the hospitalization by the hospital teams.

A telephone follow-up will be conducted at 3 months among survivors and / or their doctor by CRAs dedicated to the French Society of Cardiology.

Inclusion Criteria:

1. Male or female age (e) over 18 years

2. Inpatient, whatever the mode of initial admission with acute heart failure (de novo heart failure or decompensation of chronic heart failure) regardless of severity, corresponding to one of the following clinical situations (clinical criteria in Appendix 1):

   • Pulmonary edema, hypertensive or not
   • congestive heart failure (pulmonary congestion and peripheral edema)
   • cardiogenic shock
   • Insufficient high output cardiac

3. Patients who agreed to participate in the study

4. Isolated right heart failure

Exclusion Criteria:

1. expressed refusal to participate in the study
2. Hospitalization scheduled for review
3. Background surgery (immediate postoperative period)
4. Diagnosis of acute heart failure reversed in favor of an alternative diagnosis before discharge from hospital

Hospitalized patient, whatever the mode of initial admission with acute heart failure (de novo heart failure or decompensation of chronic heart failure)