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Recurrent systemic pneumococcal infection in an immunocompromised patient
R R Reinert1, A Büssing, H Kierdorf
1Institute of Medical Microbiology, Technical University, Aachen, Germany.
Abstract:
A case is reported of a splenectomized patient who experienced four episodes of systemic pneumococcal infection after receiving appropriate therapy in every instance. Serogrouping showed at least two different strains to be responsible for these infections. Immunological investigations showed a reduction in immunoglobulins, a decrease in in vitro immunoglobulin synthesis and a disorder of immunoregulatory T-cells, but immunological changes could not be readily explained by splenectomy alone.
Insights
Splenectomized patients can experience recurrent pneumococcal infections despite treatment. Underlying immune system disorders, beyond spleen removal, may contribute to these infections.
Area of Science:
- Immunology
- Infectious Diseases
- Clinical Medicine
Background:
- Splenectomy increases susceptibility to encapsulated bacteria like Streptococcus pneumoniae.
- Recurrent infections necessitate understanding underlying immune deficiencies.
Observation:
- A splenectomized patient had four episodes of pneumococcal infection, despite appropriate therapy.
- Multiple pneumococcal serogroups were identified, indicating different infecting strains.
Findings:
- Immunological investigations revealed reduced immunoglobulins and impaired in vitro immunoglobulin synthesis.
- Disorders of immunoregulatory T-cells were observed.
- These immune abnormalities were not fully explained by splenectomy alone.
Implications:
- Suggests a need for comprehensive immunological assessment in splenectomized patients with recurrent infections.
- Highlights potential for undiagnosed primary immunodeficiencies.
- Emphasizes the importance of considering factors beyond asplenia in managing severe infections.