Red Blood Cell (RBC) transfusions are common in septic patients, but this study highlights the potential for harm at higher hemoglobin (Hgb) levels. Although they may be physiologically guided up to an Hgb of 9-10g/dL, the findings suggest that transfusions should be avoided when hemoglobin levels exceed 10g/dL due to the potential for adverse outcomes in this critically ill population.

Red Blood Cell (RBC) transfusions are a frequent intervention, given to 45.3% of critically ill patients with sepsis during the early resuscitation phase in this study of 2,613 patients (mean age 71.9 years).

The average lowest hemoglobin (Hgb) level at the time of transfusion was 8.8-1.7g/dL.

The decision to transfuse was not solely based on low Hgb.

Transfused patients were generally sicker, exhibiting a wide array of high-risk factors, including a high Simplified Acute Physiology Score 3, high Sepsis-Induced Coagulopathy scores, septic shock, need for surgical source control, elevated lactate and bilirubin, low platelet counts, use of multiple vasopressors, and requiring continuous renal replacement therapy (CRRT).

This suggests a gap between current clinical practice and existing guideline recommendations, as transfusions are driven by the overall physiologic severity of the patient.

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