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Updated: Aug 6, 2026

Continuous Manual Exchange Transfusion for Patients with Sickle Cell Disease: An Efficient Method to Avoid Iron Overload
Published on: March 14, 2017
Case reports: delayed hemolytic transfusion reaction in sickle cell disease
S K Syed1, D A Sears, J B Werch
1Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA.
Patients with sickle cell disease face high risks of delayed hemolytic transfusion reactions due to frequent transfusions and alloantibody formation. Enhanced phenotyping and matching of transfused cells are crucial preventive measures.
Area of Science:
- Hematology
- Transfusion Medicine
Background:
- Sickle cell disease patients require frequent transfusions, increasing exposure to foreign antigens.
- Alloimmunization is common due to antigenic differences between patients and donors.
Observation:
- Four cases of delayed hemolytic transfusion reactions in sickle cell disease patients are detailed.
- Exchange transfusions, used in three cases, heighten risks via increased antigen exposure.
Findings:
- Delayed hemolytic transfusion reactions present unique challenges in sickle cell disease management.
- Risk factors include prolonged transfusion history, alloantibody formation, and lack of transfusion records.
Implications:
- Extended erythrocyte phenotyping of patients is recommended.
- Extended phenotypic matching of transfused cells can mitigate transfusion reaction hazards.
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