Heart failure (HF) remains a leading cause of morbidity and mortality despite advances in interventional and pharmacological therapies [1,2]. Beyond the classification based on left ventricular ejection fraction (LVEF), HF is often stratified by the presence or absence of ischemic etiology – a distinction that continues to shape research, clinical decision-making, and HF-related management. Given the importance of this stratification, one might expect a widely acknowledged and uniform definition of ischemic HF etiology.
