[MND] Multiple Sclerosis Flashcards
Multiple Sclerosis is an
autoimmune disease resulting in demyelination of central nervous system (CNS) neurons (their axons) resulting in delays or blocks in neural transmissions
Primary progressive MS can be described
Progressive and cumulative neurological deficit and disability
Benign MS can be described as
One or two relapses and remissions resulting in full recovery and no disability
Secondary Progressive can be described as
Recurrent relapses and remissions developing into progressive deterioration. Disability increases.
Relapsing-Remitting MS can be described as
Recurrent relapses and remission resulting in complete or partial recovery
Epidemiology: MS
- 1 case per 1000 in NZ
- Onset commonly occurs between the ages of 20 and 40 years
- Affects women 3 times more frequently than men
Talk about the distribution of plaques in MS
Pathological examination of the brain and spinal cord reveals characteristic plaques of MS which are predominantly in the white matter
The lesions are random throughout the cerebral hemispheres, the brain stem, the cerebellum and the spinal cord
Talk about remyelination in MS
A repair process which can occur following an acute inflammatory demyelinating episode / early stages of MS but appears thinner than the original myelin. It may allow functional recovery but oligodendrocytes are unable to rebuild it completely
Repeated attacks can cause a build up of
scar-like plaque around the damaged axons which blocks nerve conduction permanently
MS is characterised by a loss of oligodendrocytes which
gives off a number of processes which ensheath surrounding axons (insulation), enveloping the axon producing/resulting in a myelin segment
Lesions located in the brain stem can affect speech resulting in
Dysarthria (articulating speech)
Affects on the musculoskeletal system include
weakness, spasms, ataxia
The are the two most common symptoms of MS?
- Presentation of visual loss (usually unilateral)
- Neurological deficits (weakness, numbness, unsteadiness, slurred speech, nystagmus, intention tremor)
Diagnosis?
Based on presenting signs and symptoms in combination with:
1) MRI
2) Lumbar Puncture (for cerebrospinal fluid)
3) Evoked Potentials (tests can include visual, brain stem, auditory, somatosensory evoked potentials)
Maintaining and increasing range of motion, maintaing and encouraging weight-bearing and encouraging postural stability can be considered
Some primary aims of physiotherapy