Hemoglobin Optimization and Transfusion Reduction Through Anemia and Iron Deficiency Correction: A Post Hoc...

Area of Science:

• Cardiology
• Hematology
• Anesthesiology

Background:

• Anemia and iron deficiency (ID) are prevalent in patients undergoing cardiac surgery.
• These conditions can lead to increased transfusion requirements and adverse outcomes.

Purpose of the Study:

• To evaluate the impact of systematic perioperative anemia and/or ID correction on hemoglobin (Hb) levels.
• To assess the effect of this intervention on red blood cell (RBC) transfusion rates in elective cardiac surgery patients.

Main Methods:

• A post hoc analysis of a prospective, non-randomized, before-and-after study was conducted.
• The intervention involved systematic screening and treatment for anemia/ID using intravenous iron and erythropoietin-α.
• Propensity-score overlap weighting and multiple imputation were used for adjustments.

Main Results:

• Hb levels significantly increased in anemic patients (+1.8 g/dL, p < 0.001).
• RBC transfusion rates were significantly reduced in anemic patients with ID (26.1% vs 55.9%, p = 0.003) and without ID (17.4% vs 55.3%, p = 0.007).
• No significant differences in outcomes or mortality were observed.

Conclusions:

• Systematic correction of anemia and/or ID is effective in improving Hb levels.
• This strategy significantly reduces transfusion needs in elective cardiopulmonary bypass surgery.
• The findings support the integration of this approach into perioperative patient blood management protocols.