ABO Blood Type Antigens in Kidney Transplantation
Introduction to ABO Compatibility
- The American Society of Transplantation recommends ABO blood group compatibility for kidney transplantation to prevent hyperacute rejection and graft failure 1, 2
- ABO blood typing should be performed twice before donation to reduce the risk of unintended blood type incompatible transplantation, as suggested by the American Journal of Kidney Diseases 3
- Donor blood group A subtype testing should be performed when donation is planned for recipients with anti-A antibodies, according to the American Journal of Kidney Diseases 3
ABO Compatibility and Histocompatibility Testing
- ABO blood group compatibility is the primary consideration for donor eligibility, as stated by the American Society of Transplantation 1, 2
- HLA matching improves long-term outcomes in kidney transplantation, as reported by the American Society of Transplantation 2, 4
- Donor-specific crossmatching excludes donor organs from recipients with preexisting anti-donor immunity, as recommended by the American Society of Transplantation 1
Special Considerations for ABO-Incompatible Transplantation
- ABO-incompatible transplantation carries increased risks and should still be considered experimental, according to the American Society of Transplantation 2, 4
- Kidney paired donation programs can be considered for ABO-incompatible donors and recipients, as suggested by the American Journal of Kidney Diseases 3, 5
- A2 to O transplantation may be successful in certain circumstances, as reported by the American Society of Transplantation 1, 4
Clinical Approach and Practical Considerations
- Determining ABO blood type compatibility between donor and recipient is the first step in transplant evaluation, as recommended by the American Society of Transplantation 1, 2
- Recipients should be informed about the risks and benefits of different transplant options based on blood type compatibility, as suggested by the American Journal of Kidney Diseases 3
- ABO compatibility testing is the first step in donor evaluation before proceeding to more complex histocompatibility testing, as stated by the American Society of Transplantation 1, 4
Risks and Pitfalls
- Relying solely on ABO compatibility without proper crossmatching can lead to transplant failure, as warned by the American Society of Transplantation 1, 6
- ABO-incompatible transplantation should only be performed at centers with experience in effective incompatibility management strategies, as recommended by the American Journal of Kidney Diseases 3, 5