Falkenberg: MS Flashcards
What is this?
lesions in the CNS due to demyelination which cause scarring and areas of inflammation
multiple sclerosis
What happens in MS? What’s the pathology?
destruction of myelin –> axonal damage –> formation of plaques, scars, lesions –>
areas of inflammation –>
infiltration of macrophages & T-cells
In MS, there is a destruction of (blank) as well as destruction of (blank).
myelin; axons
What can cause MS?
Genetic
Autoimmune disease
Infectious
Environmental
MS is the most common neurological disease of young adults. What is the usu age of onset? More common in males or females?
20-40yrs; female:male is 2:1
There is a strong genetic factor to MS. Pts w a first degree relative are at (blank) risk of developing MS
10-20x
Common symptoms of MS?
visual disturbances vertigo limb weakness optic neuritis *lesions in optic nerve numbness fatigue ** usu #1 complaint pain
Some disease patterns in MS
relapsing-remitting (75%)
secondary progressive (SPMS)
primary progressive (10-15%)
progressive-relapsing (PRMS)
Describe the relapsing-remitting pattern of MS.
periods of increased and decreased disability across time
*ex: weakness in L leg last for a week to a month, & then goes away - cycle
The geographic distribution of MS is interesting. Specifically where you lived the first 15yrs of your life. Where are most common areas w MS?
Northern America
Canada
Early MS may be inflammatory, and later may be (blank).
degenerative
*moreso inflammatory when it’s relapsing-remitting, then progresses to degenerative
How to diagnose MS?
H&P
neuro exam & MRI *lesions separated by time & space (lesions in different places cause diverse symptoms that come and go in new locations)
Spinal tap
McDonald criteria
What will you see on an MRI if a pt has MS?
lesions that are changing over time
- likely to be in the optic nerve
- located around the ventricles
- can be in cerebellum, etc
What will you find when you do a spinal tap on a pt w MS?
oligoclonal bands
*increased IgG causes an inflammatory response
**spinal taps done if you really aren’t sure about the diagnosis
What is the treatment for MS?
to manage/decrease severity of acute attacks: steroids manage symptoms **fatigue modify disease course improve physical function psychosocial support