Expanded Disability Status Scale: Difference between revisions
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The EDSS | The EDSS quantify disability of MS patient based on neurological assessment by categorizing sign and symptoms in eight functional systems (FS). Furthermore, it comprises the ability to execute activities of daily living (ADL) and ambulatory function. | ||
An overall score can be given on an ordinal scale ranging from 0 (normal neurological examination) to 10 (death due to MS). Scores from 0 to 4.0 are determined by FS scores, which means that in this range the EDSS is essentially a measure of impairment. Scores from 4.0 higher basically address disability. Ambulatory function and the use of walking aids heavily determine the range of 4.0–7.0, and scores between 7.0 and 9.5 are largely determined by the ability to carry out ADL. | An overall score can be given on an ordinal scale ranging from 0 (normal neurological examination) to 10 (death due to MS). Scores from 0 to 4.0 are determined by FS scores, which means that in this range the EDSS is essentially a measure of impairment. Scores from 4.0 higher basically address disability. Ambulatory function and the use of walking aids heavily determine the range of 4.0–7.0, and scores between 7.0 and 9.5 are largely determined by the ability to carry out ADL. | ||
Revision as of 10:49, 29 February 2024
Purpose[edit | edit source]
A neurologist John Kurtzke in 1983 designed a scale called Expanded Disability Status Scale (EDSS) as an advance from his previous 10 step Disability Status Scale (DSS). It is used to evaluate disability in multiple sclerosis and monitoring changes in the level of disability over time[1].
Technique[edit | edit source]
The EDSS quantify disability of MS patient based on neurological assessment by categorizing sign and symptoms in eight functional systems (FS). Furthermore, it comprises the ability to execute activities of daily living (ADL) and ambulatory function.
An overall score can be given on an ordinal scale ranging from 0 (normal neurological examination) to 10 (death due to MS). Scores from 0 to 4.0 are determined by FS scores, which means that in this range the EDSS is essentially a measure of impairment. Scores from 4.0 higher basically address disability. Ambulatory function and the use of walking aids heavily determine the range of 4.0–7.0, and scores between 7.0 and 9.5 are largely determined by the ability to carry out ADL.
First of all, EDSS holds high intra- and inter-rater variability [10, 11, 17–19]. This can be explained by the subjective nature of the neurological examination itself on which the EDSS is largely based, particularly in the lower EDSS range. Also, complex and ambiguous scoring rules for the FS probably explain some of the variability. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5336539/
https://www.youtube.com/watch?v=j9UCoLNu6_A&t=13s
https://www.youtube.com/watch?v=v9sFiM_lkJ4
Evidence[edit | edit source]
Resources[edit | edit source]
References[edit | edit source]
- ↑ Expanded Disability Status Scale (EDSS) [Internet]. multiple sclerosis trust. 2020 [cited 2024 Feb 29].
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