MS Flashcards
what is MS
progressive, ronic infalmmation degeration of the myelin of the CNS
destruction of the mylein sheath and the axons
what are the contributing factors to MS
inflammation
autoimmune
infection
enviromental
what is the peak age for MS
20 - 50
is MS more prevalent in men or women
women - white women
what is the life expectancy of someone with MS
normal
Increased risk for MS
affected family member
viral agents
vit D def
smoking
what are the three factors that contribute mostly to MS
genes
environment
autoimmune response
what is the pathophysiology of MS
abnormal autoimmune responses that attacks - inflammatory cascade
myelin
oligodendrytes
CNS nerve fibers
what does demyelination do
this slow the neural transmission and causes rapid nerve fatigue
I can also cuase a a conduction block
what patho factor contribute to the relapsing-remitting forms of the disease
the decrease in the inflammatory attack
what happens with chronic disease and myelination
there is less remyleination between the attacks that results in axon and cell death
what Certain areas are susceptible to demyelination
optic nerve
periventricular white matter
spinal cord - corticospinal and DCML
cerebellar peducles
where is periventricular white matter located
white matter located immediately adjacent to the CFS filled ventricles of the brain
what is the most common disease course for MS
Relapsing-Remitting
how is Relapsing-Remitting MS characterized
attacks with period of remission
active - replase period
not active - remission period
what kind of MS will those intially with Relapsing-Remitting transition to
Secondary Progressive
what does Secondary Progressive look like
starts off with relapsing remitting disease form and then progresses to irreversible worsening of neurological function
who do we characterize secondary progressiev MS
as ‘active’ or ‘not active’ or ‘with progression’ or ‘without progression’
what is the least common type of MS
primary progressive
primary progressive characterized as
continuous worsening of disease without distinct attacks
progressive disablity from onset
what is the Clinically Isolated Syndrome
he first episode of inflammatory demyelination
when will Clinically Isolated Syndrome be diagnosed as MS
when the secound episode occurs
active - Clinically Isolated Syndrome
if a anothere episode occurs
no active - Clinically Isolated Syndrome
if there are no other episode after the first instance