Public forum - Last update 14.12.2015
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14.12.2015 - Topic: Visual (optic) Functions
Could you please clarify the difference between FS 5 and 6 in visual functions?
To score an FS of 5 you either have;
- one eye with a visual acuity less than 20/200 (0.1) and the other more than 20/60 (0.33).
- alternatively one eye fulfilling the definition of FS 4 plus acuity of the "better" eye of 20/60 (0.33) or less.
To score an FS of 6 you would need;
- one eye as it is described in the "first" definition of FS 5
- but the other ("better") eye must be 20/60 (0.33) or less.
06.02.2015 - Topic: Cerebellar Functions
I have a patient with moderate hemiparesis (pyramidal score 3) who is unable to tandem walk because of weakness, but does not appear ataxic. How would I score tandem walk and the EDSS step in the Cerebellar category?
If there are no other signs of ataxia you should score a 2 for Tandem walk and for the cerebellar FS score a 2X
X indicates problems with cerebellar scoring due to interfering paresis
26.08.2014 - Topic: Brainstem Functions
What would an isolated bilateral internuclear ophthalmoplegia score?
A unilateral complete internuclear ophthtalmoplegia (INO) would result in a brainstem FS 3, actually because of sustained nystagmus. You cannot get a higher FS score if there is only extraocular movement impairment or nystagmus, so a bilateral INO still scores a 3.
26.08.2014 - Topic: Sensory Functions
If a person has absent vibration sense in both toes but present in both ankles, this would presumably score a 3 (marked - complete loss). But what would it score on the FSS? A 1 (mild decrease in one or two limbs) or a 3 ("essentially lost vibration in one or two limbs") - ie does the FSS score refer to distal loss or overall limb loss?
The FS score refers to distal loss of vibration sense, so in this case it would be a 3, because of marked reduction of vibration in two limbs.
15.08.2014 - Topic: General requests
What are the requirements for performing EDSS? Does the investigator have to be a neurologist or can they just be a physician not specialised in neurology? Can nurses perfom EDSS?
We strongly recommend that EDSS is performed by a neurologist or a neurologist in training. For certain studies other requirements may be defined by the sponsor.
15.08.2014 - Topic: Ambulation
In a prior question (under the Ambulation section in the public forum) with a person who needed to touch the wall AFTER walking 110 meters and then completing the total of 500 meters, without further aid or rest, you suggested the EDSS is 5.5. Did he not also walk 390 meters without assistance for an EDSS of 4.5? The question I also raise is, if a person has two performances, do you score the better or worse one?
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