Iron Deficiency in Heart Failure: What Do We Know So Far?

Area of Science:

• Cardiology
• Hematology
• Internal Medicine

Background:

• Iron is essential for human biological processes.
• Heart failure (HF) patients have a high prevalence of iron deficiency, which is associated with severe disease and adverse outcomes.
• Iron deficiency in HF can be absolute (low stores) or functional (impaired utilization).

Purpose of the Study:

• To highlight the significance of iron deficiency in heart failure management.
• To emphasize the European Society of Cardiology's recommendations for screening and treating iron deficiency in HF patients.
• To discuss the efficacy of iron replacement strategies in HF.

Main Methods:

• The abstract discusses current clinical recommendations and treatment outcomes.
• It reviews the diagnostic criteria for iron deficiency, including ferritin and transferrin saturation.
• It contrasts the effectiveness of oral versus intravenous iron administration in HF patients.

Main Results:

• Iron deficiency is a significant predictor of poor prognosis in heart failure.
• Iron replacement therapy, particularly intravenous iron, improves HF symptoms, exercise capacity, and quality of life.
• Intravenous iron is effective in repleting iron stores in HF patients, unlike oral iron.

Conclusions:

• Routine screening for iron deficiency in HF patients is recommended.
• Iron replacement should be administered to deficient HF patients, regardless of anemia status.
• Intravenous iron is the preferred method for correcting iron deficiency in heart failure.