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Refractory Pneumocystis carinii infection in chronic granulomatous disease: successful treatment with granulocytes
Insights
Pneumocystis pneumonia can occur in children with chronic granulomatous disease, even with normal immunity. Granulocyte transfusions, alongside antibiotics, may effectively treat severe infections in these patients.
Area of Science:
- Immunology
- Infectious Diseases
- Pediatrics
Background:
- Chronic granulomatous disease (CGD) is a primary immunodeficiency primarily affecting neutrophil function.
- Patients with CGD are susceptible to severe bacterial and fungal infections.
- Pneumocystis pneumonia (PCP) is an opportunistic infection typically seen in immunocompromised individuals.
Observation:
- An 11-year-old girl with CGD, despite normal cellular and humoral immunity, developed PCP.
- Initial treatment with sulfamethoxazole-trimethoprim and pentamidine failed to resolve the fever.
- The patient's fever subsided after receiving 12 granulocyte transfusions combined with sulfamethoxazole-trimethoprim.
Findings:
- This case documents Pneumocystis carinii (now Pneumocystis jirovecii) pneumonia in a patient with chronic granulomatous disease.
- Standard antimicrobial therapy was insufficient for this severe infection.
- Granulocyte transfusions were associated with clinical improvement and resolution of fever.
Implications:
- The findings suggest that granulocyte transfusions may be a valuable adjunctive therapy for severe infections in patients with chronic granulomatous disease.
- This highlights the potential role of neutrophil-derived components in combating opportunistic infections in CGD.
- Further research into the therapeutic use of granulocyte transfusions for severe CGD-related infections is warranted.
Abstract:
Pneumocystis carinii pneumonia developed in an 11-year-old girl with chronic granulomatous disease who had normal cellular and humoral immunity. The patient remained febrile during treatment with sulfamethoxazole-trimethoprim and pentamidine but became afebrile when treated with a series of 12 granulocyte transfusions combined with sulfamethoxazole-trimethoprim. In addition to documenting P carinii infection in chronic granulomatous disease our findings suggest that granulocyte transfusions may be of value in the treatment of severe infections in chronic granulomatous disease.