B7.019 Diffuse Weakness without Numbness Flashcards
presentation of ALS
mixed UMN and LMN signs with normal sensation asymmetric weakness bulbar dysfunction -dysarthria -dysphagia
epidemiology of ALS
3-8 / 100,000 prevalence
mean onset: 56-63
male: female 1.5:1
3 year mean survival
etiology of ALS
unknown
free radical mediated oxidative stress
glutamate toxicity
treatment of ALS
riluzone
edavarone
management of ALS
multidisciplinary approach
feeding tube (PEG)
noninvasive ventilation
presentation of dermatomyositis
symmetric proximal muscle weakness normal reflexes normal sensation increased CK myopathy on EMG heliotrope rash
treatment of dermatomyositis
prednisone
azathioprine
methotrexate
IVIg
acquired myopathies
inflammatory -dermatomyositis -polymyositis -inclusion body medication (statins) endocrine
inherited myopathies
muscular dystrophy
congenital myopathies
metabolic
inclusion body myositis pattern of involvement
knees
fingers
features of myopathies
usually proximal weakness pain is not a prominent feature CK often elevated EMG myopathic features biopsy can be helpful genetic testing
presentation of spinal muscular atrophy
newborn w severe weakness unable to feed requires mechanical ventilation ocular movements and sensation intact DTRs absent
genetic testing in SMA
deletion in SMN gene chromosome 5
treatment of SMA
Neusinersen
presentation of myotonic dystrophy
prox and dist weakness upper and lower limbs thin face drooping eyelids normal reflexes normal sensation elevated CK