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    Cincinnati Prehospital Stroke Severity Scale (CP-SSS)

    Predicts large vessel occlusion (LVO) and severe stroke in patients with stroke symptoms.


    Use in a hospital setting in patients with signs and symptoms of acute ischemic stroke.

    When to Use
    Why Use

    Patients in a hospital setting with signs and symptoms of acute ischemic stroke.

    • May be used to determine both severity of stroke, as quantified by NIHSS ≥15, and presence of LVO.
    • Accuracy at detecting LVO or severe stroke has not been evaluated when administered by EMS providers.
    • Acute stroke caused by LVO may be amenable to additional treatment beyond intravenous tissue plasminogen activator (tPA), including mechanical thrombectomy.
    • Benefit from mechanical thrombectomy in acute stroke from LVO is time-dependent, so early recognition may help timely mobilization of neurosurgical or endovascular care teams.
    • Based on three items from the NIH Stroke Scale (NIHSS), which is familiar to and easily administered by many emergency physicians and neurologists, as opposed to the LAMS, which is made up of three clinical items, one of which (grip strength) is not included in the NIHSS, and the RACE Scale, which includes more (six) clinical items.
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    Creator Insights
    Dr. Brian S. Katz

    About the Creator

    Brian S. Katz, MD, is a vascular neurologist at OhioHealth Riverside Methodist Hospital in Columbus, Ohio. He has authored or co-authored several studies in stroke neurology. Dr. Katz completed residency at Mayo Clinic and fellowship at the University of Cincinnati.

    To view Dr. Brian S. Katz's publications, visit PubMed

    Are you Dr. Brian S. Katz? Send us a message to review your photo and bio, and find out how to submit Creator Insights!
    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.
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