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48 Cards in this Set

  • Front
  • Back

The demyelinating disease of the CNS (brain and SC)

Multiple sclerosis

Autoimmune disease with segmental demyelination,inflammation and gliosis

Multiple sclerosis

Charcot'striad: Cardinal signs of MS


Scanning speech (mixed type of dysarthria)


Intention tremors (kinetic tremor)


Nystagmus

Multiple sclerosis

Charcot'striad: Cardinal signs of MS

Scanning speech (mixed type of dysarthria)


Intention tremors (kinetic tremor)


Nystagmus

the quick oscillation; the shaking of the eyeballs

Nystagmus

The exact etiology of MS is

Unknown (idiopathic)

MS Hallmark:

plaque formation in MRI

Multiple sclerosis risk factor:


gender

F>M


Multiple sclerosis risk factor:


age

20-40years old

Multiple sclerosis risk factor:


vitamins deficiency

Dec vitamin D level

Multiple sclerosis risk factor:

• F>M


• 20-40years old


• High SES (temperatecountries)


• Dec vitamin D level


• Smoking


• Family History

Multiple sclerosis etiology:

1. The exact etiology is Unknown (idiopathic)


2. Viral, autoimmune


3. Mixed histocompatibility complex (MHC/HLA-6) region of chromosome 6

Multiple sclerosis chromosome

chromosome 6

Multiple sclerosis risk factor:


race

white population


northern america


northern europe


scandinavian countries (sweden, denver)


new zealand


southern australia


southern canada

Multiple sclerosis aka

the great crippler of young adult

a chronic inflammation, demyelinating disease of the CNS characterized by the segmental demyelination, inflammation & gliosis

Multiple sclerosis

plaque formation (hallmark)

gliosis

Multiple sclerosis accepted theories:

1. autoimmune disease induced by a viral or other infections aent


a. herpes viruses (type 1,2,6)


b. familial? pneumonia


2. genetics

demyelination of the PNS

GBS

proliferation of the neuroglial cell or tissue within the CNS & results in glial scars (plaque)

gliosis

best diagnosis for MS:

MRI

best diagnosis for TBI:

CT scan

demyelinated areas eventually become filled with fibrous astrocytes (most abundant glial cell) & undergo a process called gliosis

Multiple sclerosis

demyelinating lesion in the white matter of the CNS

Multiple sclerosis

Plaque locations in Multiple sclerosis;

POBCCCC


Periventricular white matter


Optic Nerve (CN 1)


Brainstem


Cerebral cortex/cortex


CST


Cerebellum (cerebellar peduncle)


Cervical spinal cord (posterior white column)


Four Major Clinical Subtypes of MS

1. Relapsing-Remitting MS (RRMS)


2. Secondary-Progressive MS (SPMS)


3. Primary-Progressive MS (PPMS)


4. Progressive-Relapsing MS (PRMS)

Characterized by discrete attacks of neurological deficits (relapse) with either full or partial recovery (remission) in subsequent weeks to months.

Relapsing-Remitting MS (RRMS)

Affects approximately 85% of patients with MS at diagnosis

Relapsing-Remitting MS (RRMS)

MC MS type:

Relapsing-Remitting MS (RRMS)

Characterized by an initial relapsing-remitting course, followed by a change in clinical course with progression to steady and irreversible decline with or without continued acute attacks

Secondary-Progressive MS (SPMS)

The majority cf patients with RRMS progressed to SPMS

Secondary-Progressive MS (SPMS)

>50% of type of MS:

Secondary-Progressive MS (SPMS)

20% out of the 85% of RRMS

Secondary-Progressive MS (SPMS)

Characterized by disease progression and steady functional decline from onset

Primary-Progressive MS (PPMS)

Patients may experience modest fluctuations in neurological disability but discrete attacks do not occur (without acute attacks)

Primary-Progressive MS (PPMS)

is associated with later onset (mean age 40 years)and more equal gender distribution

Primary-Progressive MS (PPMS)

Affects approximately 10% of patients with MS

Primary-Progressive MS (PPMS)

type of MS that is associated with later onset (40 y.o)

Primary-Progressive MS (PPMS)

type/s of MS that has bad prognosis:


Secondary-Progressive MS (SPMS)


Primary-Progressive MS (PPMS)

type/s of MS that has good prognosis:

Relapsing-Remitting MS (RRMS)

types of MS according to severity:

benign MS


malignant MS

disease in which the pt. remains fully functional in all neurological system 15 years after onset

benign MS

aka "marburg's disease"

malignant MS

rapid onset & almost continual progression leading to significant disability or death with a relatively short time period after onset

malignant MS

• Characterized by a steady deterioratiorn in disease from onset (similar to PPMS) but with occasional acute attacks

Progressive-Relapsing MS (PRMS)

Intervals between attacks are characterized by continuing disease progression

Progressive-Relapsing MS (PRMS)

• Affects approximately 5% of patients with MS

Progressive-Relapsing MS (PRMS)

least common type of MS

Progressive-Relapsing MS (PRMS)