Quick Hit: A new shared language for heart failure

The 2026 AHA/ACC/ESC/WHF consensus reframes heart-failure classification around reduced, preserved, and improved ejection fraction, while giving greater attention to causes and clinical trajectories. It standardizes language; it is not a treatment guideline.

Prepared by: Iraq Cardiology Editorial Team
Source authors: Mary Norine Walsh et al.
Reading time: 2 min

Quick summary

The essential point, in one sentence.

Reading companion

A professional question, bounded to this record.

Answers use this update and its recorded sources only; it does not provide individual treatment advice.

Quick take

The 2026 Second Universal Definition of Heart Failure proposes a shared terminology for clinicians, researchers, health systems, and policymakers. It groups heart failure as reduced, preserved, or improved ejection fraction rather than relying only on rigid LVEF cutoffs.

It also gives more visibility to cause and trajectory, including improvement, remission, and recovery. The practical value is clearer communication and more consistent classification—not a new treatment algorithm.

Source

Walsh MN, Kober L, Sliwa K, et al. *AHA/ACC/ESC/WHF Expert Consensus Document: Second Universal Definition of Heart Failure (2026).* Circulation. Published 29 June 2026.

*This consensus is not a clinical practice guideline or patient-specific management advice.*

Professional discussion starter

Turn reading into a balanced conversation.

Prompts for professional reflection—not individual treatment advice.

1Which element of the source most changes how your team would frame Heart failure classification?
2Which limitation or context should be made explicit before discussing application?
3What question is worth taking to a journal club or multidisciplinary meeting?

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