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Case report: exacerbation of hemolytic anemia requiring multiple incompatible RBC transfusions
A M Svensson1, S Bushor, M K Fung
1Fletcher Allen Health Care/University of Vermont Department of Pathology, 111 Colchester Avenue, Burlington 05401, USA.
Transfusing red blood cells (RBCs) in autoimmune hemolytic anemia (AIHA) is challenging. Early phenotyping and optimizing patient care, including IVIG, are crucial for managing AIHA and angina.
Area of Science:
- Hematology
- Immunology
Background:
- Autoimmune hemolytic anemia (AIHA) presents significant challenges for red blood cell (RBC) transfusions.
- High-titer, low-avidity antibodies and antibodies to high-frequency antigens complicate finding compatible RBCs.
Observation:
- A 66-year-old female with refractory AIHA and coronary artery disease experienced worsening anemia and angina requiring multiple RBC transfusions.
- She received multiple incompatible RBC transfusions despite increased prednisone therapy without improvement.
Findings:
- Patient management improved after coronary artery stent placement and high-dose intravenous immunoglobulin (IVIG) therapy.
- Early patient phenotyping aided in selecting least-incompatible donor RBCs.
- Repeated IVIG treatment proved effective despite prior refractoriness.
Implications:
- Early RBC phenotyping is vital for selecting compatible or least-incompatible units in AIHA.
- Optimizing the patient's overall clinical condition is essential to prevent ischemia.
- IVIG therapy can be beneficial even in cases previously refractory to treatment.
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