Calc Function

    • Calcs that help predict probability of a diseaseDiagnosis
    • Subcategory of 'Diagnosis' designed to be very sensitiveRule Out
    • Disease is diagnosed: prognosticate to guide treatmentPrognosis
    • Numerical inputs and outputsFormula
    • Med treatment and moreTreatment
    • Suggested protocolsAlgorithm

    Disease

    Select...

    Specialty

    Select...

    Chief Complaint

    Select...

    Organ System

    Select...

    Patent Pending

    Log In

    Show
    Forgot your password?
    Log In
    Or create a new account (it's free)

    Forgot Password?

    Enter your email address and we'll send you a link to reset your password.

    Get New Password

    Sign In Required

    To save favorites, you must log in.

    Creating an account is free, easy, and takes about 60 seconds.

    Already have an MDCalc account?

    Login to link your favorites and recently used calcs

    Show
    Forgot your password?
    Log In
    Or continue to Nuance

    Attention COACH STUDY participants:

    The principal investigators of the study request that you use the official version of the modified score here.

    DRAGON Score for Post-TPA Stroke Outcome

    Predicts 3 month outcome in ischemic stroke patients receiving TPA.
    When to Use
    Pearls/Pitfalls
    Why Use

    The DRAGON score can help predict 90 day clinical outcomes in patients with ischemic stroke using only data that is available shortly after hospital arrival.

    The DRAGON score was developed to make early predictions about clinical outcomes for ischemic stroke patients using only information that is available shortly after they arrive at the hospital and before tPA is given.

    • Scored on a 0-10 point scale and used to predict clinical outcomes at 90 days (as defined by mRS), lower is better.
    • 96-99% with a DRAGON score of 0 had a good outcome (mRS of 0-2) and none had a miserable outcome (mRS of 5-6).
    • Conversely 97-100% of patients with a DRAGON score of 10 had miserable outcomes (mRS of 5-6).

    Points to keep in mind:

    • The DRAGON score has only been validated in retrospective studies of stroke databases.
    • The authors of the DRAGON score suggest that patients with a miserable predicted outcome should be considered for endovascular therapy or hypothermia, though the benefits of those interventions are unproven and the recommendation is not evidence-based.

    There are nearly 800,000 cases of acute stroke in the United States every year, with 130,000 associated deaths (4th leading cause of death in Americans).

    The DRAGON score, especially at the low and high end of the scale, can help predict which patients are likely to have good clinical outcomes and those who are likely to have miserable clinical outcomes even if given tPA.

    No
    0
    Either
    +1
    Both
    +2
    No
    0
    Yes
    +1
    <65
    0
    65-79
    +1
    ≥80
    +2
    No
    0
    Yes
    +1
    No
    0
    Yes
    +1
    0-4
    0
    5-9
    +1
    10-15
    +2
    ≥16
    +3

    Result:

    Please fill out required fields.

    Next Steps
    Evidence
    Creator Insights
    Dr. Daniel Strbian

    About the Creator

    Daniel Strbian, MD, PhD, is a practicing neurologist at the University of Helsinki Central Hospital in Finland. He is an active researcher in the field of ischemic stroke.

    To view Dr. Daniel Strbian's publications, visit PubMed

    Content Contributors
    About the Creator
    Dr. Daniel Strbian
    Content Contributors