Introduction to multiple sclerosis Flashcards
(11 cards)
describe the prevalence of MS
- women twice as likely to develop MS than men
- MS more common in Caucasian population
- diagnosis usually occurs 20-30years
- 5-10% of these experience symptoms before 16 - MS symptoms present in children but often missed
give examples of the main symptoms of MS
- fatigue
- cognitive impairment
- depression and anxiety
- optic neuritis
- dysphagia
- weakness
- spasms
- ataxia
- diarrhoea or constipation
- incontinence
what is benign MS
no disability with a return to normal between attacks
what is relapsing-remitting MS
unpredictable attacks which may possibly leave permenent deficits followed by periods of remission
what is primary progressive MS
steady increase in disability without attacks
what is secondary progressive MS
Initial relapsing-remitting MS that suddenly begins to decline without periods of remission
what is progressive relapsing MS
steady decline since disease onset with superimposed attacks
what are the pathological changes in EDSS in MS
- inflammation
- new waves of lymphocytes entering CNS
- blood brain barrier disturbance
- new active CNS lesions
- initial demyelination in active lesions
what are the pathological changes in brain volume atrophy measures in MS
- trapped inflammation
- meningeal inflammatory agregates
- slow expansion of pre existing lesions
- subpial cortical demyelination
- diffuse white matter injury
- brain atrophy
what are the primary causes of MS
- inflammatory/neurodegenerative pathology of MS leads to
- cytokine production
- functional effects on limbic system
- neuron loss, oligodendrocyte loss, synaptic degeneration
- lost connectivity, delayed processing
- hypothalamic lesions, autonomic lesions
- increased brain activation
- altered endocrine function
what are the secondary causes of MS
- comorbidities
- other symptoms
- treatment side effects