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Granulocyte transfusion therapy in children
Insights
Granulocyte transfusions show promising results in neutropenic children with infections, improving granulocyte counts. Further randomized trials are needed to confirm efficacy against antibiotic and bone marrow remission variables.
Area of Science:
- Pediatric Hematology and Oncology
- Infectious Diseases
- Cellular Therapy
Background:
- Neutropenia in children increases susceptibility to severe infections.
- Granulocyte transfusions are a potential therapeutic option for managing infections in neutropenic patients.
Observation:
- A prospective study evaluated 45 granulocyte transfusions in pediatric patients.
- Continuous flow centrifugation was utilized for granulocyte collection.
Findings:
- Favorable responses were observed in most children (11 out of 13) with proven or presumed infections.
- Granulocyte transfusions significantly increased absolute granulocyte counts one hour post-transfusion.
- Post-transfusion granulocyte counts were inversely proportional to patient size.
- Complete recovery was noted in a child with Nocardia asteroides sepsis and pneumonia.
- Dramatic responses were seen in children with major gram-negative bacterial infections.
Implications:
- Granulocyte transfusions appear effective in treating infections in neutropenic children.
- Randomized controlled trials are necessary to definitively establish the role of granulocyte transfusions, controlling for antibiotic therapy and bone marrow status.
Abstract:
A prospective study of 45 granulocyte transfusions in children using continuous flow centrifugation is reported. During 13 episodes of proven or presumed infection, only two children failed to show a favorable response to granulocyte transfusion. The neutropenic child shows a significantly increased absolute granulocyte count one hour after transfusion. The granulocyte counts at one hour after transfusion are inversely proportional to the child's size. A child with chronic granulomatous disease who had documented Nocardia asteroides sepsis and pneumonia exhibited complete recovery following granulocyte transfusion. Dramatic responses to the nonrandom use of granulocyte transfusion have been observed in children with major gram-negative bacterial infections. Endorsement of granulocyte transfusion for instances of presumed, but unproven, infection in the neutropenic child will require randomization to control the variables of antibiotic therapy and bone marrow remission.