MS, Parkinsons, Stroke Flashcards

1
Q

What is Multiple Sclerosis and what does it result in?

A

Autoimmune disease where T-cells of the immune system attacks myelin in CNS causing:

  • Inflammation
  • Degeneration of myelin = lesion
  • Scar tissue = Sclerotic plaque
  • Conduction of impulses is altered and slower
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2
Q

Which types of MS are there?

A
  • Relapse-remitting MS: Peeks of autoimmune responses in CNS causing symptoms during peeks but normal functions in between
  • Secondary progressive MS: Peeks but with progressive function loss (do not go back to normal in between)
  • Primary progressive MS: Exponentially worsening after first appearance with no recovery in between
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3
Q

Name some risk factors for MS

A
  • Genetics
  • Gender: women more affected
  • Lack of sun exposure (lower vitamine D)
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4
Q

What symptoms are present in MS?

A

Symptoms depend on location of the lesions and plaques

  • Sensory:
    1. Numbness
    2. Fatigue
    3. Pain
    4. Parasthesia (tingeling sensation)
  • Motor:
    1. Poor balance and coordination, and clumsiness (cerebellum)
    2. Poor motor control like inhibited gait, increased muscle tone, and shaking (upper motor neuron)
  • Autonomic (ex. medulla):
    1. Vessel dialation
    2. Heat regulation
    3. Bladder
    4. Respiratory and cardiac rhythm affected
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5
Q

MS cosequences:

A
  • Contractures
  • Spasticity
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6
Q

How is MS diagnosed?

A
  • Must have at least to plaques/lesion seperated in time and location
  • MRI to confirm diagnosis, show active MS or not, and exclude other diagnosis
  • Cerebralspinal fluid
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7
Q

What are the goals with treatment of MS?

A
  • Restrict acess for immune system by slowing down demyelinsation
  • Maintain and improve functional status by symptomatic treatment since there is no cure:
    1. Maintain ROM
    2. Improving quality of life
    3. Decrease symptoms like depression, pain, and fatigue
    4. Prevent consequences (spasticity and contractures)
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8
Q

Explain treatment options for MS

A
  • Medication like immune suppressant to inhibit T-cells and slow down progression
  • Mobility exercises to reduce contractures and worsening of spasticity, but it increases inflammation
  • Physical activity to reduce mental problems and pain
  • Orthotics to maintain ROM, prevent contractures, and help walking with less energy cost and pain
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9
Q

What is parkinson and its pathophysiology?

A

Degenerative disease of CNS affecting grey and white matter resulting in function loss

  • Degeneration due to insufficient protheinsynthesis when adapting to changes which causes dopamine deficiency
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10
Q

How does parkinson progress and which functions are affected?

A
  • Stage 1-2 is quite slow progression and usually asymptomatic
  • Stage 3-4 great severety of symptoms
  • Motor functions related to basal nucleis - VAR: Voluntary movements, Autonomic movements, Reflexive movements
  • Autonomic motorfunctions becom dependant on cortical controle instead (have to think to do)
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11
Q

Which symptoms are present in parkinsons?

A

It depends on affected area

  • Debute symptoms - CPO:
    1. Changes in smell and sight
    2. Problems with orthostatic hypotension (low blood pressure when standing up)
  • Clinical symptoms - THR:
    1. Tremor - initially asymmetric and resting tremor
    2. Hypokinesia - less activity of motor functions causing slurred speach, reduced mimicking, shuffling gait with no arm swing
    3. Rigidity - stiffness, cogwheel phenomenon
  • Later stages IDDC:
    1. Increased salvation
    2. Difficulties swallowing
    3. Dementia and depression
    4. Constipation
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12
Q

Name some common consequences of parkinsons

A
  • Balance problems due to reduced control of posture
  • Abnormal gait pattern = shorter step length, no arm swing, narrow gait due to reduced ROM of trunk and pelvis
  • Contractures
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13
Q

Explain briefly how parkinsons can be diagnosed

A
  • Clinically observing symptoms ex. writing with hypokinesia - bid letters first then smaller
  • Imaging tests to exclude other diagnosis
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14
Q

How is parkinsons treated?

A
  • Mainly pharmacological to increase dopamine levels like L-DOPA (can get through blood-brain barrier)
  • Rehabilitative treatment to prevent contractures by ROM exercises with or without orthotics
  • Surgical treatments like cut off tracts and transplantation of dopamine producing neurons
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15
Q

What is stroke?

A
  • Cerebrovascular disease caused by inhibited oxygen and glucose supply resulting in different symptoms depending on affected brain artery
    Collective name describing symptoms when brain tissue is damaged due to inhibited oxygen and glucose supply
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16
Q

What causes stroke?

A
  • Infarction = obstruction of blood supply resulting in tissue damage/death
    ex. due to thrombosis
  • Brain hemorrhage = burst of blood vessel causing bleeding
    1. Intracerebral - within brain tissue
    2. Subarachnoid = in subarachnoid area
  • TIA: Reduction of blood flow that will be restored within minutes/hours and is a risk factor for stroke
    (basically a stroke but not…)
17
Q

What kind of risk factors increases risk for stroke?

A

Hemorrhage:

  • Hypertension

Infarction:

  • Hypertension
  • Type II diabetes (obsisity, physical inactivity)
  • Smoking

Other:

  • Age (eldery are at higher risk)
  • Alcohol consumption
  • Artherosclerotic development
18
Q

Explain symptoms for stroke

A
  • Cerebellum: dizziness, instability, balance problems
  • Subarachnoid: sudden sharp headache
  • Carotid artery (frontal blood supply):
    1. Aphesia (Wernicks and Broccas area)
    2. Counterlateral symptoms (opposite side of injury) - hemipares meaning paralysis of one side
  • Perception neglect of counter lateral side
19
Q

What are the consequences of stroke?

A
  • Usually leave patient with permanent impairments
  • Anterolateral part of circle of Willis - personality and motor functions impaired
  • Posterior part of circle of Willis - vision impairments
  • Death or risk for new stroke
  • Immobilization
  • Spasticity
20
Q

How can stroke be diagnosed?

A
  • CT can show hemorrhage
  • MRI can show how many times a person has had a stroke
  • General conditions
  • Vital parameters like ECG and glucose level
21
Q

How can stroke be treated?

A
  • Acute:
    1. Infarction - dissolve blood clot
    2. Hemorrhage - fix the lesion
  • Rehabilitation:
    1. Early mobilization
    2. Stimulation of brain plasticity
    3. Orthotic devices to ease mobilization
  • The goal is to prevent/reduce complications and maintain/improve functional status