MS- Multiple Sclerosis Flashcards
What is MS?
Immunological/ neurodegenerative disease
Immune system attacked the myelin sheath around the brain, spinal cord and optic nerve (demyelination)
Chronic inflammation
Diffuse myelination to white/ gray matter and axons
Formation of plaques (scar tissue formation that reduces impulse conductivity)
What is the hypothesis of MS etiology?
Genetics (polygenetic) + environmental factors
Smoking
Lack of UV light exposure results in vitamin D deficiency
What viral infections can cause MS?
Mononucleosis
Epstein- Barr
Most common nontraumatic neurodegenerative disorder among people under the age of …?
40
What percent of the US population has MS?
1%
Where in the world are you less likely to have MS?
Near the equator
Does MS affect men or women more?
Women
True or false:
Scandinavian/ Scottish decent is more susceptible to MS
True
How many times more likely is MS in caucasians?
2x
What are the signs and symptoms of MS?
Fatigue- MOST COMMON
Motor, sensory, visual, and autonomic systems affected
Diplopia
Dysesthesia/ paresthesia- sensation
Erectile dysfunction
Gross/ fine motor incoordination
Cognitive deficits
Depression/ euphoria
Loss of visual acuity (80%)
Spasticity
Dysphagia
Vestibular dysfunction
Between what age is MS diagnosed in?
20-40
What age does onset peak?
30
What age is MS not common to be diagnosed after?
60
What are the 4 types of MS?
1) clinically isolated syndrome (CIS)
2) relapsing- remitting MS (RRMS)
3) secondary progressive MS (SPMS)
4) primary progressive MS (PPMS)
What is clinically isolated syndrome (CIS)?
Refers to 1st episode of neurologic symptoms that lasts at least 24hrs and is caused by inflammation Or demyelination
Can be either monofocal or multifocal
May or may not process to MS
If accompanied by MRI findings may be diagnosed with MS
Accurate diagnosis is important so that disease modifying therapy can start to prevent onset of MS