Aims: Risk stratification in acute heart failure (HF) patients can help to decide therapies and time for discharge. The potential of growth differentiation factor 15 (GDF-15) in HF has been previously shown. We aimed to study the importance of GDF-15-level variations in acute HF patients. Methods and results: We retrospectively evaluated a cohort of patients hospitalized due to acute HF. GDF-15 was measured bot...