MS Flashcards

(107 cards)

1
Q

there is an increase of MS prevalence
1. in males in the last decade
2. in northern communities
3. in children in alberta
4. in those >50yrs old in the last 10 years

A

2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is the most common nontraumatic neurolgoical disability in people of working age

A

MS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

which of the following is false about MS
1. most adults with dx say that sx started in childhood
2. it is the most common nontraumatic neurolgoical disability in people of retirement age
3. incidence is increasing in women (3;1), likely due to women entering workforce
4. the exact cause is unknown

A

2- of working age

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

3 possible mechanisms of MS

A

overactive immune disease resulting in
1. Breakdown of myelin and inadequate myelin repair
2. Degeneration / progression
3. B and T cell mediation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

list 3 possible causes of MS

A

childhood obesity, less sun exposure, smoking, environment, genes, infections (EBV/ mono)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

2 characteristics of MS

A

chronic inflammation in brain, spinal cord, optic nerves
slow degeneration, resulting in axonal loss

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what is the emerging immunopath view of MS

A

T cells active, but B cells independent in also releasing cytokines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

current immunomod tx for MS focuses on

A

preventing the demyelination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

list 3 sx of MS

A

sensory, weakness, bladder and bowel, coordination, impaired vision, depression, cognition, fatigue, heat intolerance, balance/ gait, sexual dysfunction, pain, paroxysmal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what is considered a relapse of MS

A

=>24hrs of symptoms, a clinical event of MS inflammation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what are the 4 subtypes of MS

A

relapsing-remitting
2 progressive
1 progressive
progressive relapse

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

rank the MS subtypes from least to most common

A

progressive relapse
1 progressive
2 progerssive
relapsing remitting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

______________disability doesn’t get worse between relapses but after each relapse it can end up worse than before

A

relapsing remitting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

steady progression to worse disease state after relapse-remitting subtype

A

2 progressive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

no relapses, just slow progression in MS is considered _________ subtype

A

1 progressive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Relapses occur, followed by full or partial recovery, but nerve damage continues and symptoms become increasingly disabling is _____________ subtype

A

progressive relapse

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what is MS prodrome

A

various sx with ↑ physician encounters and rx drug use
Fatigue, pain, headache, low mood, anxiety, bladder issues, infections

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what is considered radiologic isolated MS syndrome

A

no hx of MS sx but MRI looks like MS lesions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

when radiologic isolated sx is noted, 50% of pts will have a clinical event of MS within ___yrs

A

50% in 10ysr

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what is a clinically isolated sx of MS

A

1st spell of demyelintion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

the natural hx of MS includes an increase in _________, __________, _________ and decreases in _______ and ______

A

increase in axonal damage, disability, progression
decrease in inflammation, # of relapses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

the recent change to milder courses of MS is due to

A

Changes in diagnostic criteria, MS epidemiology, early + appropriate disease modifying therapies (DMT), improved general health in populations, tx of comorbidities (ex- HPTN, smoking, lipids, depression/anx)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

later start of disease modifying therapies after MS onset, results in

A

increased LT disability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

list 3 MS red flags

A

New neurologic sx (tingling, weakness, balance issues, dizziness, double vision, loss of vision)
Signs of infection
Intolerance to medication, medication SEs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
how to quicken recovery from MS relapse
steroids IV/PO
26
what is classified as an MS relapse
>24hrs of inflammation/ demyelination sx
27
4 steps in treating MS relapse
1. screen for UTI and infections 2. stop inflammation with rest, IV methylprednisolone or PO prednisone 3. counsel on coping strategies 4. sx management 5. prevent more inflammation
28
what steroids are used for tx of MS relapse
IV methylprednisolone 1g daily F3-5d PO prednisone 650mg BID F3d (give sleep aid)
29
is there a difference between PO and IV high dose steroids (prednisone) for MS?
no- PO is less expensive and more convenient
30
what are disease modifying therapies
LT tx to modify disease course, delay accumulation of disability- no direct impact on sx
31
Early intensive therapy sees a reduced 5yr rate of disability compared to___________
escalation therapy
32
list the conventional escalation treatment ladder
watchful waiting immunomodulators IRT higher efficacy tx
33
list the early top down tx series
higher efficacy IRT watchful waiting retreat and/ or immunomodulators
34
patients with milder MS, lower risk of progression should use the ________ strategy, starting with the following tx first
escalation immunomodulators, teriflunomide
35
in pts with some RF or poor responders to immunomodulaors (high risk of progression), the ________ should be used, starting with the following meds
escalataion Natalixumab fingolimod/ sphingosine 1 phosphate inhibitors Alemtuzumab, ocrelizumab Cladribine Ofatumumab
36
in pts with aggressive disease, _________ strategy should be used with the following meds used first
De-escalation strategy Alemtuzumab Ocrelizumab Cladribine Ofatumumab
37
what are the 3 immunomodulator maintenance therapies for MS
BIFN, GA, DMF
38
BIFN MOA
↓peripheral activation of T cells, stops lymphocytes from crossing BBB
39
GA MOA
↓peripheral activation of T cells, modulates immune system to T2 state, ↓ central inflammatory cascade in brain
40
BIFN and GA efficacy
~33% relapse reduction
41
BIFN SEs
flu like sx, liver effects, leukopenia
42
GA SEs
rash, panic reaction
43
DMF metabolic byproduct + the SE associated with the byproduct
nicotinic acid- facial flushing
44
how to treat facial flushing from DMF
ASA pre treatment
45
DMF efficaacy
50% relapse reduction
46
teriflunomide MOA
Antimetabolite- interferes with de novo synthesis of pyrimidines, blocks cell replication in rapidly dividing cells, inhibits proliferation of activated T and B cells in periphery
47
name the 4 immunosuppressive/ maintenance tx for MS
teriflunomide natalizumab sphingosine-I-phosphate inhibitors B cell depleters
48
teriflunomide is generally used for ____________
those that are milder with MS or older pts
49
teriflunomide itnx
CYP2C8i, amiodarone, live vaccines, immunosuppressants
50
in women on teriflunomide, if they want to get pregnant, what must be done?
stop teri washout with colestyramine or activated charcol
51
natalizumb MOA
Anti Trafficking agent: stops lymphocytes from crossing BBB and attacking the myelin blocks a4 integrin subunit with VCAM-1 at BBB (can’t adhere and roll through blood vessel walls)
52
natalizumab intx
ßIFN, immunosuppressives
53
which drug requires stratification for JC virus 1. teriflunomide 2. natalizumab 3. ocrelizumab 4. alemtuzumab
2
54
which MS meds can be used in pregnancy?
BIFN, GA natalizumab
55
natalizumab AEs include
infusion reactions rebound effect if stopped suddenly increase in liver enzymes rare severe brain infections from JC virus reactivation
56
-imod class
Sphingosine-I-phosphate inhibitors
57
Sphingosine-I-phosphate inhibitors MOA
inhibits migration of T cells from lymphoid tissues and target organs including CNS antitrafficking, maintenance
58
sphingosine -I-phosphate inhibitors interact with
antiarrhythmics, immunosuppressants, BB, drugs that ↑ QT interval (ex- antidepressants), avoid live vaccines
59
which med decreases HR with first dose 1. siponimod 2. natalizumab 3. ofatumumab 4. BIFN
10- sphingosine -i-phosphate inhibitors
60
what is the only tx approved for secondary progressive MS
Siponimod
61
Sphingosine-I-phosphate inhibitor SEs
Rebound effect Avoid in pregnancy and BF (teratogenic) Liver eff, low WBCs, infections (shingles- vaccinate prior to initiation) Eye- macular edema
62
SEs specific to fingolimod
basal cell carcinoma bradycardia HPTN
63
B cell depletors for MS include
ocrelizumab, ofatumumab
64
B cell depleters MOA
bind to CD20 on surface of B cells = lysis
65
B cell depleters intx
immunosuppressants, live vaccines
66
what is the 1st tx for active primary progressive MS
ocrelizumab
67
B cell depleter efficacy
Prevent 60% relapses + most new MRI lesions
68
B cell depleter SEs
Infusion rxn (ocrelizumb) Infections (zoster) Cardiac events Cancers (breast) Can’t use in pregnancy
69
4 phases of immune reconstitution tx for MS
0. abnormal immune system at baseline 1. reduction phase after giving agent 2. repopulation phase 3. reconstitution phase
70
what is a major pro of immune reconstitution tx
can hit hard in the beginning then let the immune system grow back = not immunocomp in LT
71
what are 2 immune reconstitution meds
alemtuzumab cladribine
72
alemtuzumab MOA
Humanized monoclonal Ab, targets CD52 (lymphocytes and monocytes) = T cell physis by antibody mediated cytotoxicity and complement cell lysis
73
alemtuzumab works in the 1. CNS 2. periphery 3. BBB
2
74
alemtuzumab is used mainly 1. for those with aggressive MS 2. as a gentler agent for older pts 3. for pts with milder course of MS 4. 2+3
1
75
how many infusions of alemtuzumab is usually used
2, some require a 3rd or 4th
76
alemtuzumab infusion schedule
Consecutive infusion for 5 days 1st yr, then 3 days 2nd yr
77
alemtuzumab AEs
Infusion reaction, rash, HA Rare carotid dissection/ stroke Infections (zoster) Delayed autoimmune disorder Thyroid papillary ca
78
which therapy can not be used in BF 1. BIFN 2. GA 3. Natalizumab 4. alemtuzumab
4
79
pts on alemtuzumab may get pregnant ____ after infusion
>4mths
80
cladribine MOA
immune cell depleting agent (sustained reduction of T and B lymphocytes), immune reconstitution tx, works in periphery
81
a senior pt has a mod course of MS and has failed immunomodulators. they refuse injections and would like a tx that is PO. what is the best option 1. alemtuzumab 2. cladribine 3. teriflunomide 4. fingolimod
2
82
cladribine SEs
opportunistic infections until immune system grows back nausea, HA, cold sores ,rash, fever, hair thinning, abd pain, flu and flu like sx
83
pts may get pregnant _____ after cladribine
=>6mths
84
sx of MS are 1. highly variable 2. usually MS specific 3. affect M>F 4. come and go with all subtypes
1
85
how to treat fatigue in MS
Amantadine Non Sedating antidepressants (citalopram, wellbutrin) 4-aminopyridine (Fampridine = fampyra) Dextroamphetamine (adderall XR)
86
how to treat gait changes in MS
Multidisciplinary, exercise Fampridine (sustained form of 4-amino-pyridine)
87
fampridine is a
potassium channel blocker that strengthens signal down the nerve + improves walking speed
88
how to treat spasticity in MS (nonpharm)
stretching splinting exercise/ yoga
89
pharm tx for spasticity in MS
baclofen, tizanidine, BZDs, gabapentin, dantrolene, botox injections, cannabinoids, phenol injections (most have withdrawal/ tolerance) Baclofen pump
90
what should be monitored in treating spasticity in MS with meds like baclofen, BZDs, phenol injections, botox, etc
sedation, weakness, cognitive slowing, can worsen gait/ transfers
91
a spastic bladder is
small and tight
92
flaccid bladder is
large, difficult to empty
93
medications for bladder dysfunction in MS include
solifenacin/ darifenacin mirabegron oxybutynin agents amitriptyline DDAVP nasal spray tolterodine botox injections
94
what may be used to treat large and flaccid bladder (nonpharm)
catherizataion
95
what is dyssynergia
bladder and sphincter contraction
96
which drug has hx with psoriatic arthritis
DMF
97
which drug causes facial flushing
DMF
98
which MS agent is an antimetabolite that interferes with pyrimidine synthesis + T and B cells in periphery
teriflunomide
99
which of the following inhibits T and B cells in the periphery 1. BIFN 2. GA 3. teriflonomide 4. all of the above
3 only 1 + 2 are T cell inhibitors only
100
DMF formulation
PO
101
teriflunomide formulation
PO
102
which MS drug is blocks a4 integrin subunit with VCAM-1 at the BBB
natalizumab
103
which MS drug can reactivate JC virus
natalizumab
104
-mods are
sphingosine-i-phosphate inhibitors
105
which class of MS drugs decreases HR with first doses
sphingosine-i-phosphate inhibitors
106
what ist he 1st tx for active primary progressive MS
ocrelizumab
107
can you use alemtuzumab while breastfeeding
no