Calc Function

    • Calcs that help predict probability of a diseaseDiagnosis
    • Subcategory of 'Diagnosis' designed to be very sensitiveRule Out
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    Chief Complaint


    Organ System


    Patent Pending

    Duke Treadmill Score

    Diagnoses and prognoses suspected CAD based on the treadmill exercise test.
    When to Use
    Why Use

    Patients without known coronary artery disease undergoing treadmill EKG testing.

    • Originally created using minutes of exercise under Bruce protocol.
    • Should be used with caution in patients undergoing testing with other protocols.
      • If alternative protocol used, consider equivalent in multiples of resting oxygen consumption (METs) instead of minutes of exercise.
    • Provides independent prognostic information in addition to coronary anatomy, left ventricular ejection fraction, and clinical data.
    • Unclear utility if any of the following are present: significant valvular or congenital heart disease, previous cardiac surgery, uninterpretable EKG due to left bundle branch block, ST-segment elevation in leads with pathologic Q waves.
    • Does not consider clinical variables such as age, heart rate, or blood pressure, which are known risk factors for CAD.

    Can provide diagnostic and prognostic information for patients with suspected coronary artery disease based on the treadmill exercise test.

    No angina during exercise
    Non-limiting angina
    Patient stops exercising because of angina


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    Creator Insights
    Dr. Daniel B. Mark

    About the Creator

    Daniel B. Mark, MD, MPH, is a cardiologist and tenured professor of medicine at Duke University Medical Center. He is the vice chief for academic affairs in the division of cardiology and the director of outcomes research at the Duke Clinical Research Institute. Dr. Mark's primary research interests include medical economics and quality of life outcomes.

    To view Dr. Daniel B. Mark's publications, visit PubMed

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    MDCalc loves calculator creators – researchers who, through intelligent and often complex methods, discover tools that describe scientific facts that can then be applied in practice. These are real scientific discoveries about the nature of the human body, which can be invaluable to physicians taking care of patients.
    Content Contributors
    • Sean Kotkin, MD
    About the Creator
    Dr. Daniel B. Mark
    Are you Dr. Daniel B. Mark?
    Content Contributors
    • Sean Kotkin, MD