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  • Title: Measurements of maximum respiratory pressures in polymyositis and dermatomyositis.
    Author: Martin L, Chalmers IM, Dhingra S, McCarthy D, Hunter T.
    Journal: J Rheumatol; 1985 Feb; 12(1):104-7. PubMed ID: 3981494.
    Abstract:
    Measurements of maximum respiratory pressures and routine pulmonary function tests were performed in 8 patients with polymyositis (PM) and 2 patients with dermatomyositis (DM). Serial measurements of routine pulmonary function tests in 8 patients remained unchanged. Maximum respiratory pressures were decreased initially in 7 patients with proximal muscle weakness and clinically active muscle disease and improved with corticosteroid therapy in the 5 patients who were followed serially. In 3 patients with clinically stable disease the maximum respiratory muscle power was normal. Serial measurements of maximum respiratory pressures have been of value in monitoring patients with PM and DM.
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