MS Flashcards
who gets MS
female, onset age 30-60 high risk US/europe/canada/new zealand australia (low risk africa/aisia) genetics stress trigger
Genetic + environment
most complain about ambulation and not getting PT
Relapse and Remitting
most common form
- medication
- worse (relapse) and improves (remission-degress of recovery to a degree but getting worse over tiem)
(not exacerbation which is an increase in disease activity, it is just a worsening of sx)
Relapse - progressive
varied relapse and then stabilize, relapse and stabilize (describe behavior not severity)
Chronic Progressive
(primary progressive)
no improvement: slowing of progression can happen but it progresses over time
Secondary progressive
start as more benign then becomes a straight slope of progressing
Benign
occasional sx without significant functional impairment
fulminant
rapid progressive
early severe disability and death
Dx MS
mcdonald
- attacks of:
Spatial: 2 regions
temporal: 6 months apart - lab evidence of 2 or more distinct regions
- no other better explanation
what evoked potential slows
slow conduction velocity
his view on exacerbation
exacerbation is an acute demyelinating event
exercise doesnt cause this. fatigue, temperature, stress cause worsten of sx but not an exacerbation
EDSS
most used scale to measure severity of MS
disability scale measure 8 Functional systems: pyramidal (motor), cerebellar, brainstem, sensory B&B visual cerebral and other
only measure ambulation by distance and AD**
mild: 0-3.5
mod: 4-6.5
severe: 7-9.5
fatigue in MS
primary vs secondary
primary –lassitude/motor fatigue
secondary is treatable
-infection -tx the infection (drugs inhibit immune system so susceptible to infection which incr temp)
- spasticity: E cost -tx baclophen
- ataxia: high E cost
weakness: sedentary cause disuse atrophy tx exercise
depression: tx medicine
sleep deprivation (speascticity, B&B, polyuriam,)
Polypharmacy: too many medications
6MWT MS
each minute less distance covered than in the minute before
can exercise cause exacerbation
no
it can cause fatigue
will not cause more neuro damage or increase likelihood of relapse or exacerbation
some MS sx
12 primary
6 secondary
1-FATIGUE
2-SENSORY changes: anastehsia, Lhermitte sign (posterior cord)
3-TRIGEMINAL NEURALGIA (trig nerve inflammed)
4-WEAKNESS: plaque in pyramidal, disuse
5-OPTIC NEURITIS: abrupt lose vision 2-3 days, blur vision..usually transient
6-SPASTICITY: UMN involve, worse with time
7-HEAT SENSITIVITY: transient worse sx, (wont cause permanent damage, some pts benefit from cooling before exercise)
8. ATAXIA: cerebellar involve or posterior column
9. can disdiakokinsestia, tremor, vestibulopathy, dysmetria get vertigo(–BPPV is preipheral: more common in ms)
10) PSYCH
11) BLADDER
12) SPEECH/LANGUAGE
SECONDARY
1) musculoskeletal (bc innapropriate movement patterns)
2) weakness (not the primary of demylenation but resulting disuse)
3) change in respiration (primary death: lose muscle control of respiration or deconditioned)
4) posture (positionning)
5) osteoporosis (disuse/steroids)
infections (UTI)
6) balance loss (bc primary effeects of weak/spasticity, ataxia, sensory loss, loss motor control and vision ALSO secondary of weakness and contractures)
- if fall rhomber eyes closed it bc visual dom in balance, train eyes closed
- do better on balance when they not fatigued
nystagmus in CNS vs PNS
Central: Nystagmus Direction changes Rotary or linear nystagmus and not both nystagmus can be seperate from vertigo unable to suppress with fixation
Peripheral unidirectional nystagmus rotary AND linear components nystagmus nystagmus matches with vertigo suppresses with fixation
MS drugs
A) Disease modifying:
CRAB: copaxone, rebif, avonex, betaseron
- copaxone: limit inflammatory PROPERTY of cells that cross BBB
- beta interferon: PREVENT immune cells into BBB (avonex, bataseron, rebif)
- Tysabri: BLOCK inflammatory cells cross BBB
- -can cause PML
Gilenya: prevent WBC leaving lymph nodes
B) Second order:
Mitoxantrone: sepress immmune
STEROIDS: limit inflammation process
C) Sx
Spasticity:
Baclophen: spasticity (specificity issue)
Zanaflex: Tizanidine: decr spasticity but lose tone elsewhere (specificity issue)
Dantrium: NMJ
Fatigue:
Ampyra: potasium channel blocker to improve nerve conduction
Provigil: act like missing myelin
Baclofen
Tizanidine
Dantrolene
Baclofen: spasticity of spinal origin (not as effective if cerebral origin)
i. Maximal dose effect: 80-100mg: after that patient gets drowsy and lethargic
ii. Past that amount get Drowsiness, lethargy
1. If not getting relief from spasticity at 80-100mg use a baclofen pump
iii. Act on level of CNS
Tizanidine, clonidine: (second order medication for spasticity, less effective but less drowsiness issue)
i. For Spasticity
ii. pain reducing effects
iii. Act on level of CNS
Dantrolene: (third order drug, works at PNS: NMJ, not at CNS)
–acts as the level of contractile unit, not the CNS
it works on the peripheral nervous system, the NMJ. If person has too much drowsiness with baclofen it is good to give them dantrolene.
The problem is it has a more global effect: reduce the tone in other muscles too (so get the spastic muscle to normal and get low tone in the other muscles): this happens to a greater extent than it does with the other medications
copaxone
: limit inflammatory PROPERTY of cells that cross BBB
beta interferon:
PREVENT immune cells into BBB (avonex, bataseron, rebif)
Tysabri
: BLOCK inflammatory cells cross BBB
–can cause PML
Gilenya
: prevent WBC leaving lymph nodes
Mitoxantrone
: sepress immmune
STEROIDS
: limit inflammation process
Ampyra
: potasium channel blocker to improve nerve conduction
against fatigue
Provigil
: act like missing myelin
against fatigue
if see exacerbation what may it be
UTI
MS BANDING
pain
feel like band pressing you around the middle
feel like being squeezed –but neuro cause
given neurontin / gabapentin
do TNES,
PT/OT: posture, gait, neiro affect ortho too , dont want compensations
does exercise help MS patients
yes
and not exacerbate
he found in his study that cooling helped them walk farther (before and during can cool them)
aquatic therapy good (study didnt show increased gait, did have strength increase)
how to exercise with MS
intermittent: we dont want the fatigue to come on but need amt for progress
**vital signs not always accurate indicator of fatigue
get more dose if more rest breaks: volume
MMT can be misleading, first few reps are strong then begin to deteriorate
strengthened with rest breaks and improved without fatigue
**THEY CAN EXERCISE (only pseudoexacerbations can occur): can get fatigue and thermosensitive so do cooling for more volume of exercise INTERMITTENT
is berg good for MS
no get fatigued later in day and fall;
a main cause of lack of fitness in MS
lack of training
Cerebellum
afferent
efferent
Afferent: from somatic, proprioceptors, visual, vestibular, auditory, motor and nonmotor cerebral cortex
Efferent: brainstem, midbrain, cerebral cortex
Paleocerebellum
input from spinocerebellar/cuneocerebellar/trigemninalcerebellar tracts with SOMATOSENSORY information from LIMBS and FACE
input from sensory and motor cortices
*unconscious proprioception
lesion of the spinocerebellum results in overshooting when reaching for something reach past object: abnormality in maintaining the muscle tone (ie in a rebound test)
abnormality in maintaining the muscle tone
Neocerebellum
input from: sensory, premotor, motor cortex
voluntary movement: planning and timing (skilled movements, more presice with practice)
**if lose hard to acquire lost skills in PT
(control of rapid movements, sudden movements (throw a ball and he quickly reacts to catch it) precise movement control motor planning) dysmetria disdiadokinesia