Dermatomyositis (DM) and polymyositis (PM) are systemic inflammatory myopathies, which represent the largest group of acquired and potentially treatable causes of skeletal muscle wea...
PM is distinguished from DM by the absence of rash
Patients with PM present with muscle pain and proximal muscle weakness
DM presents with skin rash, muscle pain, and ...
Transport with elevation of head of bed
Intubation and mechanical ventilation as required
Nasogastric (NG) suction to prevent aspiration
Profound muscle weakness
Weakened cough mechanisms
Well-appearing patients ...
The diagnosis of an inflammatory myopathy is largely clinical supported by selected lab testing and muscle biopsy
Most patients improve with therapy, and many make a full functional...
Amato AA, Barohn RJ. Evaluation and treatment of inflammatory myopathies. J Neurol Neurosurg Psychiatry. 2009;80:1060–1068.
Casciola-Rosen L, Mammen AL. Myositis autoantibo...
M33.20 Polymyositis, organ involvement unspecified
M33.90 Dermatopolymyositis, unspecified, organ involvement unspecified
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