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Pediatric nocardiosis.

B J Law, M I Marks

    Pediatrics
    |October 1, 1982
    PubMed
    Summary

    Nocardia infections in children vary by species. Nocardia asteroides typically affects immunocompromised children, causing pneumonia, while Nocardia brasiliensis often affects healthy children with skin infections.

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    Area of Science:

    • Pediatric Infectious Diseases
    • Microbiology
    • Immunocompromised Host Infections

    Background:

    • Nocardia infections are increasingly recognized in pediatric populations.
    • Understanding the distinct clinical presentations of Nocardia species is crucial for timely diagnosis and treatment.
    • Previous literature has often focused on Nocardia asteroides in immunocompromised individuals.

    Purpose of the Study:

    • To describe the clinical characteristics of Nocardia infections in a cohort of ten Oklahoma children.
    • To differentiate the typical presentations of Nocardia asteroides and Nocardia brasiliensis infections in pediatric patients.
    • To inform clinical management strategies for Nocardia infections in children.

    Main Methods:

    • Retrospective case series analysis of ten pediatric patients diagnosed with Nocardia infection between 1975 and 1980.
    • Review of clinical records, microbiological data, and treatment outcomes.
    • Literature review to compare findings with existing knowledge on Nocardia infections.

    Main Results:

    • Three fatal cases of Nocardia asteroides pneumonia occurred in immunocompromised children, with one case of disseminated disease.
    • The first reported case of shunt-associated Nocardia asteroides ventriculitis in a 2-month-old was successfully treated with trimethoprim-sulfamethoxazole.
    • Six immunologically competent children had Nocardia brasiliensis infections, mostly localized cutaneous infections, with one developing osteomyelitis.

    Conclusions:

    • Nocardia asteroides infections in children are predominantly associated with immunocompromised hosts, presenting as pneumonia with potential dissemination.
    • Nocardia brasiliensis infections are more common than previously recognized in children and typically manifest as acute posttraumatic pyoderma in immunocompetent individuals.
    • Prompt recognition and species-specific management are vital for favorable outcomes in pediatric Nocardia infections.

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