A study of participants hospitalized with acute heart failure with reduced ejection fraction

Inclusion Criteria:

• An average left ventricular ejection fraction (LVEF) < 40% over the entire index hospitalization
• Age 18 years or older on the index date
• At least 6 months of activity in the databaseprior to the index date

Exclusion Criteria:

• Any code for myocardial infarction (ICD-9 diagnosis code: 410.xx, ICD-10 diagnosis code: I21.xx) or related terms such as "myocardial infarction", "mi", "infarct" or "heart attack" occurring during the index hospitalization

Other protocol defined inclusion/exclusion criteria could apply

The study population will be patients who were hospitalized with acute heart failure with an average reduced ejection fraction≤40during hospitalization, and who do not have a coincident myocardial infarction and who have at least 6 months of activity in the database prior to the hospitalization.