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Partial red cell exchange transfusion in sickle cell disease
Progress in Clinical and Biological Research
|January 1, 1982
Summary
Automated partial red cell exchange transfusions improved exercise capacity in sickle cell disease patients. This procedure using cell separators was rapid, effective, and safe, despite some delayed hemolytic reactions.
Area of Science:
- Hematology
- Transfusion Medicine
- Exercise Physiology
Background:
- Sickle cell disease (SCD) is a genetic blood disorder.
- Red blood cell (RBC) exchange transfusion is a treatment for SCD complications.
- Automated cell separators offer efficient RBC exchange.
Purpose of the Study:
- To evaluate the efficacy and safety of automated partial red cell exchange transfusion in SCD patients.
- To assess the impact of RBC exchange on exercise capacity in SCD.
- To monitor for adverse events during and after the procedure.
Main Methods:
- Eighteen SCD patients underwent automated partial red cell exchange using cell separators.
- A 50% exchange was achieved in approximately two hours.
- Exercise testing was performed on ten patients to evaluate exercise capacity.
Main Results:
- Automated RBC exchange significantly improved exercise capacity, with mean anaerobic threshold increasing from 64 to 115 watts.
- Mean work performed at 170/min heart rate increased from 126 to 182 watts.
- Three patients experienced delayed hemolytic reactions, presenting as painful sickle cell crises.
Conclusions:
- Automated partial red cell exchange is a rapid, effective, and safe procedure for SCD patients when indicated.
- The procedure leads to substantial improvements in exercise capacity.
- Close monitoring for delayed hemolytic reactions is essential post-procedure.