Single Iron Infusion Improves Exercise Capacity in Heart Failure Patients
Source Summary
Researchers from Mass General Brigham Heart and Vascular Institute found that a single iron infusion improved exercise capacity in patients with heart failure with preserved ejection fraction (HFpEF) who have iron deficiency. The findings, presented at the 2026 American Heart Association Scientific Sessions and published in Circulation, suggest that iron replenishment may help address physical limitations in this condition.
Why it matters
HFpEF is the most common form of heart failure, and this finding identifies a potentially simple intervention to improve exercise tolerance in affected patients.



