Zusammenfassung der Ressource
The inflammatory myopathies
- benign acute myositis
- assumed post-viral phenomenon
- often follows an upper resp tract infection
- runs a self-limiting course
- pain &
weakness in
the affected
mm
- CPK usually raised
- dermatomyositis
- systemic illness
- probably due to an angiopathy
- onset 5-10 years old
- acute
- typically insidious
- fever
- misery
- eventually
symmetrical mm
weakness
- mainly proximal
- pharyngeal mm
involvement
- swallowing
affected
- heliotrope (violaceous) rash
- characteristic
- eyelids
- extensor
surfaces of
e.g.
- elbow
- periorbital
oedema
- subcutaneous
calcification
- Ix
- raised ESR, CRP possibly
- muscle biopsy
- inflammatory
cell infiltrate
& atrophy
- Mx
- physiotherapy
- prevent
contractures
- corticosteroids
- mainstay of Rx
- continue @
tailored dose for
2 years
- immunosuppressants
- methotrexate
- ciclosporin
- mortality= 5-10%