# Heart Failure Gets a New Definition, Experts Say It Will Transform Care
Medical organizations have redefined heart failure, shifting focus from how much blood the heart pumps to how well it handles blood flow overall. This change addresses a growing population of patients whose hearts function normally by traditional measures but still develop serious complications.
The new definition recognizes heart failure with preserved ejection fraction, or HFpEF. Previously, doctors diagnosed heart failure primarily by measuring ejection fraction, the percentage of blood the left ventricle ejects with each beat. A normal ejection fraction masked many cases where the heart stiffens or fills improperly, preventing adequate circulation.
HFpEF now accounts for roughly half of all heart failure cases. The condition disproportionately affects older adults and women. Traditional EF-based screening missed these patients, leaving them without diagnosis or treatment until symptoms became severe.
The redefined criteria emphasize clinical symptoms alongside biomarkers and imaging evidence. Doctors now look for fluid buildup, shortness of breath, and fatigue combined with specific heart structure changes visible on echocardiograms. Blood tests measuring natriuretic peptides, proteins released when the heart strains, provide additional confirmation.
This shift opens treatment pathways previously unavailable to HFpEF patients. Recent drugs like SGLT2 inhibitors, originally developed for diabetes, show promise in HFpEF management. Earlier identification allows doctors to prescribe these medications before severe complications develop.
The new definition also acknowledges lifestyle factors. Weight management, blood pressure control, and regular activity matter more for HFpEF than traditional heart failure. Specialists now recommend individualized approaches rather than one-size-fits-all protocols.
Implementation requires training primary care physicians and cardiologists on updated diagnostic criteria. Many patients currently living with unrecognized HFpEF could