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Related Experiment Videos

Prognostic factors in polyarteritis.

M Sack, J T Cassidy, G G Bole

    The Journal of Rheumatology
    |December 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

    Polyarteritis prognosis is critical in the first three months, with older age and specific organ involvement indicating a poorer outcome. Cutaneous vasculitis suggests a more favorable course for patients with polyarteritis.

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    Area of Science:

    • Rheumatology
    • Internal Medicine
    • Pathology

    Background:

    • Polyarteritis is a serious systemic vasculitis with variable clinical presentations.
    • Identifying prognostic factors and optimal treatment is crucial for patient outcomes.

    Purpose of the Study:

    • To review the clinical course of 40 patients with polyarteritis.
    • To determine prognostic factors and evaluate treatment responses.

    Main Methods:

    • Retrospective review of 40 patients with polyarteritis.
    • Analysis of clinical data, including organ involvement, symptoms, and diagnostic procedures.
    • Evaluation of treatment efficacy, particularly corticosteroid dosage.

    Main Results:

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  • The initial three months were critical for survival, with a five-year survivorship of 57%.
  • Older age, skeletal muscle involvement, and peripheral neuropathy were associated with poorer outcomes.
  • Cutaneous vasculitis indicated a more benign course; myocardial, CNS, or hypertension were not invariably poor prognostic factors.
  • Muscle biopsies and renal angiograms proved valuable diagnostic tools.
  • Distinguishing between specific types of vasculitis (polyarteritis nodosa, hypersensitivity angiitis, allergic granulomatosis) was challenging.
  • Australia antigenemia was present in 6% of patients.
  • High-dose corticosteroids did not demonstrate superiority over low-dose in suppressing active disease.

    • Conclusions:

    • Prognosis in polyarteritis is influenced by age of onset and specific organ involvement.
    • Early diagnosis and monitoring are essential, with the first three months being pivotal.
    • Diagnostic modalities like muscle biopsy and renal angiography are valuable.
    • Current data do not support a significant benefit of high-dose corticosteroids over low-dose for disease suppression.