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Related Experiment Videos

Testing stable angina. Expert opinion versus decision analysis.

P Manu, L A Runge

    Medical Care
    |December 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

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    For stable angina pectoris, a stress test followed by coronary angiography for positive results is optimal. This approach aligns with threshold analysis and expert consensus, guiding diagnostic decisions for coronary artery disease.

    Area of Science:

    • Cardiology
    • Medical Decision Making
    • Health Services Research

    Background:

    • Clinical diagnosis of stable angina pectoris remains controversial regarding optimal post-diagnosis testing strategies.
    • Invasive and noninvasive tests are debated for their utility after establishing a clinical diagnosis.

    Purpose of the Study:

    • To determine the optimal diagnostic approach for stable angina pectoris using threshold analysis.
    • To compare a decision rule derived from threshold analysis with expert cardiologists' diagnostic strategies.

    Main Methods:

    • Employed threshold analysis, a multifactorial mathematical instrument, using 1983 risk and benefit data.
    • Compared the derived decision rule with diagnostic approaches proposed by 61 randomly selected board-certified cardiologists.

    Related Experiment Videos

  • Analyzed 15 different two-test strategies proposed by the experts.

    • Main Results:

    • Threshold analysis indicated that a stress test followed by consideration of coronary angiography and surgery for positive results is optimal.
    • A majority of experts (60.6%) proposed an identical approach: stress test first, then coronary angiography if positive.
    • Three experts suggested no tests, while 12 would not recommend coronary angiography for positive stress tests.

    Conclusions:

    • The optimal diagnostic pathway for stable angina pectoris involves a stress test, with subsequent coronary angiography for positive results.
    • Decision analytic models can help correct judgmental biases and optimize diagnostic evaluations in cardiology.
    • Expert consensus largely supports the data-driven approach for managing coronary artery disease.