B7.019 Diffuse Weakness without Numbness Flashcards

1
Q

presentation of ALS

A
mixed UMN and LMN signs with normal sensation
asymmetric weakness
bulbar dysfunction
-dysarthria
-dysphagia
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2
Q

epidemiology of ALS

A

3-8 / 100,000 prevalence
mean onset: 56-63
male: female 1.5:1
3 year mean survival

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3
Q

etiology of ALS

A

unknown
free radical mediated oxidative stress
glutamate toxicity

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4
Q

treatment of ALS

A

riluzone

edavarone

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5
Q

management of ALS

A

multidisciplinary approach
feeding tube (PEG)
noninvasive ventilation

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6
Q

presentation of dermatomyositis

A
symmetric proximal muscle weakness
normal reflexes
normal sensation
increased CK
myopathy on EMG
heliotrope rash
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7
Q

treatment of dermatomyositis

A

prednisone
azathioprine
methotrexate
IVIg

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8
Q

acquired myopathies

A
inflammatory
-dermatomyositis
-polymyositis
-inclusion body
medication (statins)
endocrine
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9
Q

inherited myopathies

A

muscular dystrophy
congenital myopathies
metabolic

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10
Q

inclusion body myositis pattern of involvement

A

knees

fingers

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11
Q

features of myopathies

A
usually proximal weakness
pain is not a prominent feature
CK often elevated
EMG myopathic features
biopsy can be helpful
genetic testing
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12
Q

presentation of spinal muscular atrophy

A
newborn w severe weakness
unable to feed
requires mechanical ventilation
ocular movements and sensation intact
DTRs absent
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13
Q

genetic testing in SMA

A

deletion in SMN gene chromosome 5

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14
Q

treatment of SMA

A

Neusinersen

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15
Q

presentation of myotonic dystrophy

A
prox and dist weakness
upper and lower limbs
thin face
drooping eyelids
normal reflexes
normal sensation
elevated CK
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16
Q

genetic testing in myotonic dystrophy

A

increased number of CTG trinucleotide repeats in DMPK gene chromosome 19

17
Q

diagnosis of myotonic dystrophy

A
most common muscular dystrophy in adults
proximal and distal weakness
frontal balding, temporal wasting, ptosis
muscle myotonia
cardiac arrhythmias
DM
cataracts
18
Q

presentation of MG

A

double vision and drooping eyelids
mild proximal weakness
normal sensation
preserved reflexes

19
Q

treatment of MG

A

edrophonium