Updated Global Heart Failure Definition Aims to Enhance Early Detection and Personalized Care

A new international expert consensus document, the ‘Second Universal Definition of Heart Failure,’ has been released to refine how heart failure is identified and classified, aiming to improve prevention, diagnosis, and management globally. The document, developed by leading cardiovascular organizations including the American Heart Association, the American College of Cardiology, the European Society of Cardiology, and the World Heart Federation, updates the first universal definition issued in 2021. It addresses the growing burden of heart failure, which affects more than 64 million adults worldwide, driven by aging populations and rising rates of obesity, Type 2 diabetes, and high blood pressure.

The updated framework introduces several key changes. It establishes a universal classification system for heart failure causes, enabling standardized reporting from trials and registries and helping clinicians identify underlying conditions more effectively. Rather than relying on rigid left ventricular ejection fraction (LVEF) cutoff values, the definition now considers differences by sex, age, and ethnicity, offering clinically actionable categories: reduced, preserved, and improved ejection fraction. This shift allows for more personalized treatment approaches.

The document emphasizes early detection, focusing on individuals at risk or in the early stages of heart failure before symptoms appear, to support prevention and early intervention. It also recognizes heart failure as a dynamic condition that can improve, remit, or progress over time, moving away from a fixed diagnosis. Additionally, it highlights the role of social determinants, access to care, and geographic variation in heart failure risk and outcomes.

“Heart failure remains a major challenge that continues to grow globally, and inconsistencies in how it is defined have limited progress in research and treatment,” said Mary Norine Walsh, M.D., co-chair of the consensus document. “This updated definition provides a clearer, more consistent framework to help clinicians identify risk earlier and guide more personalized treatment approaches that can help improve patient outcomes worldwide.”

The consensus document is published simultaneously in the American Heart Association’s journal Circulation, the American College of Cardiology’s JACC, the European Society of Cardiology’s European Heart Journal, and the World Heart Federation’s Global Heart. It will serve as the foundation for the upcoming American Heart Association/American College of Cardiology Heart Failure Guideline, expected in late 2027.

By standardizing terminology and focusing on disease stages, underlying causes, and trajectories, the new framework aims to align clinicians, researchers, health systems, and policymakers worldwide. This collaborative effort underscores the importance of a consistent approach to tackling heart failure, a condition that continues to pose a significant global health challenge.

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