2- Myopathies Flashcards
The aetiology of polymyalgia rheumatica (PMR) is unknown. True/False?
True
List clinical features of PMR
Hip and shoulder pain
Morning stiffness lasting longer than 1hr
Improvement with movement/throughout the day
Which arteritic condition is associated with PMR?
Giant cell arteritis
PMR responds really well to what treatment?
Low-dose steroid (prednisolone)
What is the most common form of systemic vasculitis in adults?
Giant cell arteritis
List clinical features of GCA
Jaw claudication Visual disturbance Headache Tender scalp Systemic features
What is the definitive test for diagnosing GCA?
Temporal artery biopsy
How do polymyositis and dermatomyositis differ?
Essentially the same but dermatomyositis has skin changes
Polymyositis is more common in men. True/False?
False
Women 2:1 men
Is muscle weakness in polymyositis symmetrical?
Yes
List clinical features of polymyositis
Proximal muscle weakness
Myalgia
Difficulty with stairs
Dysphagia (poor prognostic sign)
By how much is CK usually raised in polymyositis?
10x
Which autoantibodies are associated with polymyositis?
ANA
Anti-Jo-1
Anti-SRP
What is the definitive diagnostic test for polymyositis?
Muscle biopsy
Outline treatment for polymyositis
Prednisolone 40mg
Immunosuppression