Survival of Acute Heart Failure Patients by Ejection Fraction in South Brazil, 2009-2011

A cohort of 380 adult patients with acute heart failure admitted to a tertiary hospital in south Brazil from 2009 to 2011. The data, analyzed by Lucas Célia Petersen, tracks survival and cardiovascular mortality across three ejection fraction groups over a median follow-up of 4.0 years. Most patients had preserved ejection fraction (51%), followed by reduced (32%) and mid-range (17%).

Use Cases

• Compare survival rates based on ejection fraction categories (reduced, mid-range, preserved) mentioned in the description.
• Analyze cardiovascular mortality risk for patients with mid-range ejection fraction relative to other groups.
• Model patient survival using clinical characteristics like age, blood pressure, and ventricular diameters referenced in the study.
• Investigate the association between ischemic etiology and outcomes in a heart failure cohort.

Strengths

• Includes 380 patient records with a median follow-up time of 4.0 years.
• Provides specific mortality percentages for each ejection fraction group (reduced EF: 40.5%, mid-range EF: 39.7%, preserved EF: 26%).
• Data originates from a tertiary hospital reference in cardiology, suggesting a focused clinical cohort.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic and temporal bias inherent to a single-center study in south Brazil from 2009-2011.

Provenance

Source

Lucas Célia Petersen

Collection Method

Cohort study of patients admitted through the emergency department.

Time Range

2009 to 2011, with a median follow-up of 4.0 years.

Geography

South Brazil