Epidemiology and Prognostic of the Acute Heart Failure

EPICAL 2 (Epidemiology and prognostic of the Acute Heart Failure) is an epidemiological, observational, prospective and multicenter study. This study includes at first an exhaustive recording of the cases on a geographic area at East of France, then the recorded patients are followed up in a cohort at least 3 years. This study follows the experiences of the EPICAL study led by our team. Main objective: To describe the characteristics of the patients affected by acute heart failure and to identify prognostic factors, in particular related to care. More exactly : * To describe the sociodemographic, clinical, biological and therapeutic characteristics of the patients presenting an acute heart failure during hospitalisation and living at East of France ; * To study the short and medium-term morbi-mortality of these patients, and identify the main factors determining the prognosis for survival ; * To evaluate the prognostic impact of the intra and extra-hospital care ; * To identify the evolution of the care's practices of the decompensated heart failure since the EPICAL study (15 years) and their influence on the prognosis of the disease. Secondary objective: to constitute a biological collection of serum, plasma and urine of patients' sample presenting an acute heart failure.