Blood transfusion in hematologic intensive care unit.

Area of Science:

• Hematology
• Transfusion Medicine
• Critical Care Medicine

Background:

• Excessive red blood cell (RBC) transfusions are linked to poorer patient survival and increased cardiovascular events.
• A single RBC unit (1RBC) transfusion strategy may mitigate risks associated with multiple RBC unit (2RBC) transfusions.

Purpose of the Study:

• To evaluate the feasibility and impact of a 1RBC transfusion policy compared to a 2RBC policy in a hematologic intensive care unit.
• To assess RBC consumption and clinical outcomes in patients receiving 1RBC versus 2RBC transfusions.

Main Methods:

• A prospective study implemented a 1RBC transfusion policy.
• A historical cohort receiving a 2RBC transfusion policy served as the comparator group.
• Patients in a hematologic intensive care unit were analyzed.

Main Results:

• No significant difference in the overall number of RBC units transfused between the 1RBC (mean 7.35 units) and 2RBC (mean 8.14 units) groups.
• A significant reduction in RBC units transfused was observed in the 1RBC allogeneic hematopoietic stem cell transplantation (allo-HSCT) subgroup (5 units) compared to the 2RBC allo-HSCT group (7.7 units; p=0.01).
• No anemia-related side effects were reported, and overall survival did not differ between groups.

Conclusions:

• A 1RBC transfusion policy is feasible for patients experiencing transient hematologic toxicity post-chemotherapy.
• The 1RBC strategy significantly reduced RBC consumption specifically within the allo-HSCT subgroup.
• Further investigation via a randomized trial with medicoeconomic evaluation is planned.