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    Modified Rankin Scale for Neurologic Disability

    Measures the degree of disability or dependence in the daily activities of people who have suffered a stroke or other causes of neurological disability.
    When to Use
    Pearls/Pitfalls
    Why Use

    The mRS can help users determine the degree of disability in patients who have suffered a stroke.

    The Modified Rankin Scale (mRS) assesses disability in patients who have suffered a stroke and is compared over time to check for recovery and degree of continued disability. A score of 0 is no disability, 5 is disability requiring constant care for all needs; 6 is death.

    • The mRS has been used in clinical research for over 30 years and is a common standard for assessing functional outcomes in patients with stroke.
    • Multiple studies have shown that the mRS correlates with physiological indicators such as stroke type, lesion size and neurological impairment as assessed by other stroke evaluation scales.

    Points to keep in mind:

    • There is criticism that the mRS contains subject components that results in variability and bias that lowers the score’s reliability.
    • The use of structured interviews when assessing the mRS appears to result in improved interrater reliability though this effect is not completely consistent.

    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 mRS is a widely used measure to assess the functional outcomes for patients who have suffered a stroke. It can also provide a common language for describing the degree of disability.

    No symptoms at all
    0
    No significant disability despite symptoms; able to carry out all usual duties and activities
    +1
    Slight disability; unable to carry out all previous activities, but able to look after own affairs without assistance
    +2
    Moderate disability; requiring some help, but able to walk without assistance
    +3
    Moderately severe disability; unable to walk and attend to bodily needs without assistance
    +4
    Severe disability; bedridden, incontinent and requiring constant nursing care and attention
    +5
    Dead
    +6
    A standardized interview also exists to try to reduce subjectivity or variability in score assignments. See the “About” section for more information.

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    Creator Insights
    Dr. John van Swieten

    About the Creator

    John van Swieten, MD, PhD, is a professor in the Department of Neurology at Erasmus University Medical Center in Rotterdam. His research has focused on several aspects of dementia, especially frontotemporal dementia (FTD), and he has studied clinical, genetic and pathological aspects of FTD in a large nation-wide cohort over the last 15 years.

    To view Dr. John van Swieten's publications, visit PubMed

    Are you Dr. John van Swieten? 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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