Transfusion support in hematopoietic stem cell transplantation

Area of Science:

• Hematology
• Transfusion Medicine
• Immunology

Background:

• Transfusion support is critical for hematopoietic stem cell transplantation (HSCT) recipients.
• While leukocyte antigen (HLA) matching is prioritized, blood group incompatibilities (major, minor, bidirectional, RhD) can still occur.
• These incompatibilities may complicate transfusions and lead to adverse events.

Purpose of the Study:

• To highlight the importance of compatible blood transfusions in HSCT.
• To discuss potential transfusion incompatibilities and adverse events in HSCT.
• To outline strategies for mitigating transfusion-related risks in HSCT.

Main Methods:

• Review of current practices in transfusion support for HSCT.
• Discussion of leukocyte antigen (HLA) matching and blood group compatibility.
• Consideration of leukocyte reduction and irradiation of blood products.

Main Results:

• Major, minor, bidirectional, and RhD incompatibilities can arise despite HLA matching.
• Leukocyte reduction is a common practice; irradiation is recommended for most products except plasma.
• Effective patient management requires adherence to local guidelines and hospital transfusion committee protocols.

Conclusions:

• Optimizing transfusion support in HSCT involves managing various incompatibilities.
• Leukocyte reduction and appropriate irradiation are key interventions.
• Implementing robust local transfusion guidelines and committees is essential for safe patient care.