Study of the Sudden Heart Failure Participant Population in the US

Characterizing the Acute Decompensated Heart Failure (ADHF) Patient Population in the United States (US)

An observational study using data from a large US electronic health record database to find participants hospitalized with ADHF who do not have a concurring heart attack

Inclusion Criteria:

• Age 18 years or older on the index date
• At least 6 months of activity in the database
• An inpatient visit with at least one of the following ICD-9 or ICD-10 diagnosis codes (ICD-9 diagnosis codes: 428.xx, 785.51 or ICD-10 diagnosis codes: I50.xx, R57.0) in the primary or secondary position OR mention of "heart failure" on the admission record

Exclusion Criteria:

• An average LVEF ≥ 40 during the hospitalization
• 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