Polymyositis and Dermatomyositis

Question 1

what is polymyositis

Answer 1

autoimmune myopathies characterized by edema, inflammation, degeneration of proximal muscles
- affects proximal muscles: shoulder and pelvic girdle, neck, pharynx
- symmetrical

Question 2

what is dermatomyositis

Answer 2

term is used if PM has the characteristic skin rash
- sclerodactyly and interstitial lung diseases are common

Question 3

onset

Answer 3

variable
- can be severe requiring feeding tube and ventilatory assistance

Question 4

etiology

Answer 4

unknown
0 autoimune reaction affecting muscle tissue with degeneration and regeneration, fiber atrophy, inflammatory infiltrates, drug induced

Question 5

medial management

Answer 5

corticosteroids and immunosuppressants

Question 6

REd flag

Answer 6

additional muscle fiber damage may result with too muscle exercise; contractures and pressure injuries may result from prolonged rest and inactivity

Question 7

PT management

Answer 7

• fatigue management and conservation of energy
• aerobic and low level resistance exercise with no fatigue or overload
• skin protection/ positioning