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Temporal arteritis. A clinicopathologic study.

P J McDonnell, G W Moore, N R Miller

    Ophthalmology
    |April 1, 1986
    PubMed
    Summary
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    Temporal artery biopsies are crucial for diagnosing temporal arteritis. Steroid use can alter biopsy results, impacting diagnosis and treatment decisions for this condition.

    Area of Science:

    • Pathology
    • Rheumatology
    • Ophthalmology

    Background:

    • Temporal arteritis, a form of vasculitis, affects medium-to-large arteries, commonly the temporal artery.
    • Accurate histopathologic diagnosis of temporal arteritis is essential for appropriate patient management and preventing complications like vision loss.

    Purpose of the Study:

    • To evaluate the reliability of temporal artery biopsy interpretation.
    • To assess the impact of pre-biopsy steroid therapy on histopathologic findings.
    • To identify factors influencing the diagnostic accuracy of temporal artery biopsies.

    Main Methods:

    • Retrospective review of 250 temporal artery biopsies from 237 patients.
    • Independent histopathologic review by four observers, followed by a consensus review.

    Related Experiment Videos

  • Analysis of intraobserver and interobserver variability in diagnosing active arteritis, healed arteritis, arteriosclerosis, atherosclerosis, or normal findings.
  • Assessment of the effect of pre-biopsy steroid administration on biopsy results.

    • Main Results:

    • Intraobserver disagreement ranged from 4.4% to 25.6%; interobserver disagreement ranged from 4.3% to 13.5%.
    • Pre-biopsy steroid therapy for 7-8 weeks or longer was associated with the loss of active arteritis histopathologic features.
    • Multivariant regression analysis indicated potential for selecting patients likely to have positive biopsies.

    Conclusions:

    • Temporal artery biopsy interpretation exhibits significant inter- and intraobserver variability.
    • Prolonged pre-biopsy steroid use can lead to false-negative biopsy results, complicating the diagnosis of active arteritis.
    • Clinical assessment, including response to steroids, may suffice for diagnosing temporal arteritis in select cases, especially when biopsies are contraindicated or inconclusive.