The purpose of this study is to compose a national database of the etiologies, clinical and demographic characteristics, using diagnostic tests, precipitating and risk factors, management of from intensive care unit or coronary care unit to hospital discharge, length of stay in the intensive care unit and hospital, in-hospital mortality and discharge medications of hospitalized acute heart failure patients in Turkish population.

The etiologies, precipitating factors, demographics, clinical characteristics, management and outcome of patients admitted in hospital with acute heart failure in Turkish population will be recorded.

Inclusion Criteria:

• Patients >18 years olds
• Clinical diagnosis of acute heart failure
• Admitted to the participating hospitals

Exclusion Criteria:

• Patients <18 years old
• Patients with acute heart failure who are discharged from the emergency room without admission.
• Failure to obtain informed consent

Hospitalized patients with acute heart failure

3 months

Although participant sites were encouraged to enroll patients, as consecutively as possible, the study population may not represent the general population. Registry data are based only on documentation of medical history and management during hospitalization, and follow-up data are not obtained. The medication dosage was not recorded, so we are not sure if the patients are taking the appropriate doses of HF medications.