Neuro exam 2 Flashcards
(193 cards)
Theories for development of MS
environment (away from equator)
genetic (twins)
autoimmune (attack CNS)
viral/microbial
Pathophysiology of MS
demyelination (decrease oligodendrocytes)
inflammatory response (t-cell breakdown BBB)
both
Primary symptoms of MS
visual complaints/optic neuritis
gait problems and falls
paresthesia
pain, spasticity, weakness, ataxia, speech
Secondary symptoms of MS
recurrent UTI, urinary calculi
decubiti and osteomyelitis
osteoporosis
respiratory infections
poor nutrition
depression
Tertiary symptoms of MS
financial
person/social
vocational
emotional
What is expanded disability status scale (EDSS)
0 no disability 10 death from MS
Factors for MS that are reported to aggravate symptoms or lead to acute attack
infections
anemia
fever
sleep deprivation
stress
malnutrition
childbirth
organ dysfunction
exertion
Diagnosis of MS
MRI (lesions)
CSF (IgG elevations)
What is an MS attack classified as
new symptoms lasting at least 24 hours and separated from other symptoms by at least 30 days
What is relapsing-remitting (RRMS)
no disease progression between relapses
clearly defined disease relapses
What is secondary progressive (SPMS)
develops after initial RRMS course
50% of RRMS pt develop it
What is primary progressive (PPMS)
disease progression from onset, with continuous worsening
What is progressive-relapsing (PRMS)
progressive disease from onset
continuing progression between relapses
Favorable prognosis of MS
<40 yo
female
optic neuritis or sensory symptoms
low attack frequency
relapsing/remitting disease course
Unfavorable prognosis of MS
> 40 yo
male
motor or cerebellar symptoms
high attack frequency
progressive disease course
What is mild MS
do not produce functional decline and may not require any tx
some clinicians may use PO steroids
What is moderate MS
functional ability is affected
high dose corticosteroids shorten duration of acute exacerbations
What is severe MS
manifested by hemiplegia, paraplegia, quadriplegia
no response to steroid therapy
plasma exchange every other day x7 treatments
Optic neuritis tx for MS
visual loss, blurring, hazy vision
onset of symptoms sudden and progressive
lesions on optic nerve
IV methylprednisolone
What do corticosteroids do for MS
improve recovery by decrease edema, BBB abnormality, IgG synthesis
Methylprednisolone (500-1000) 3-10 days duration
Avonex: MOA, indications
interferon 1a
suppress t cell proliferation
decrease BBB permeability
for RRMS (non-FDA: SPMS)
Avonex: warnings, ADRs
depression, seizures, albumin allergy
flu-like, inj rxn, leukopenia, depression
decrease of 1 pt EDSS
Betaseron: MOA, indications
interferon 1b
suppress t cell proliferation
decrease BBB permeability
RRMS, SPMS w/ relapses
(non-FDA: SPMS w/out replases)
Betaseron: warnings, ADRs
depression, seizures, albumin allergy
flu-like, inj rxn, leukopenia, depression