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Vasculitis associated with intestinal bypass surgery.

J A Goldman, H L Casey, E D Davidson

    Archives of Dermatology
    |June 1, 1979
    PubMed
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    Necrotizing vasculitis developed after intestinal bypass surgery due to bacterial overgrowth in the excluded segment. End-to-side anastomosis may reduce the risk of this serious vasculitis syndrome.

    Area of Science:

    • Gastroenterology
    • Rheumatology
    • Immunology

    Background:

    • Intestinal bypass surgery, particularly jejunoileostomies with excluded segments, can lead to complications.
    • Necrotizing vasculitis with tenosynovitis, arthralgia, and arthritis is a rare but severe post-surgical syndrome.

    Observation:

    • Two patients developed necrotizing vasculitis following jejunoileostomies with excluded segments anastomosed to the colon.
    • Both patients exhibited signs of bacterial overgrowth in the bypassed intestinal segment.

    Findings:

    • Circulating immune complexes were detected in both patients, suggesting an immune-mediated process.
    • Bacterial antigens from the excluded segment are hypothesized to trigger immune complex formation.
    • The specific anastomosis type (e.g., end-to-side) may influence the risk of bacterial overgrowth and subsequent vasculitis.

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    Implications:

    • Understanding the role of bacterial overgrowth in bypassed segments is crucial for managing post-intestinal bypass complications.
    • This suggests a potential mechanism linking gut microbiome alterations to systemic inflammatory conditions.
    • Further research into surgical techniques and preventative strategies for bacterial overgrowth may mitigate the risk of this vasculitis syndrome.