(Reuters Health)—Young and middle-aged adults with polymyositis-dermatomyositis are more likely to have arrhythmias in general, and supraventricular arrhythmias in particular, than matched controls without these rare rheumatic conditions, a U.S. study suggests.1 Researchers examined retrospective data on adults hospitalized between 2016 and 2018, including 32,085 patients with polymyositis-dermatomyositis and 320,850 age-matched controls. Overall, both women…
Myositis Management: Clinical Trials Provide New Insights into Treatment Options
Advancements in the treatment of myositis are on their way, according to Hector Chenoy, PhD, FRCP, who outlined the latest clinical trials during the 2021 ACR State-of-the-Art Clinical Symposium.
Case Report: A Rare But Severe Complication of Dermatomyositis
Dermatomyositis is an uncommon autoimmune condition involving skeletal muscle characterized by subacute onset of progressive weakness, intramuscular inflammatory infiltrates and the presence of myositis-specific autoantibodies.1 Immune-mediated myopathies may exert some pathogenic effects on the muscle tissue by targeting the microvasculature.1 Capillary inflammation, fragility and loss may contribute to heightened bleeding events in these patients. Here,…
Case Report: Rapidly Progressive Interstitial Lung Disease in a 6-Year-Old
Clinically amyopathic dermatomyositis (CADM), a rare subset of dermatomyositis (DM), is an autoimmune disease characterized by cutaneous findings of typical DM without evidence of myositis. Childhood presentation of CADM is rare, and not many studies describe the epidemiology of juvenile CADM.1,2 Although lung disease is rare among patients with juvenile DM, a few reports have…
Case Report: Mycosis Fungoides in Dermatomyositis
Dermatomyositis (DM) is an idiopathic inflammatory myopathy involving proximal muscle weakness and skin rash. An associated increased risk of malignancy is well established.1 The most frequent malignancies are related to the ovary, endometrium, lung, gastrointestinal tract, prostate, breast and lymphatics.2 On rare occasions, DM has been reported with certain types of non-Hodgkin’s lymphoma, specifically cutaneous…
Myositis & the Heart: New Perspectives on the Pathogenesis & Management of Cardiac Involvement in Myositis
Experts discuss the diagnosis and treatment of myositis-related cardiovascular disease.
A Combined Immunosuppressive Regimen for ILD MDA5-Positive Dermatomyositis
Interstitial lung disease accompanied by anti-melanoma differentiation-associated gene 5 positive dermatomyositis is often rapidly progressive and associated with poor prognosis. In this study, a combined immunosuppressive regimen of high-dose glucocorticoids, tacrolimus and intravenous cyclophosphamide proved more effective than treatment with high-dose glucocorticoids and stepwise addition of an immunosuppressant in a historical control group.
The Care & Treatment of Myositis: Creatinine Kinase Level Isn’t Gospel & Other Recommendations
During a session at the 2019 ACR/ARP Annual Meeting, Lisa Christopher-Stine, MD, MPH, provided valuable recommendations and practical insights into the care and treatment of myositis patients…
Myositis-Specific Antibodies Identified
The idiopathic inflammatory myopathies (IIM) encompass eight categories: 1) dermatomyositis (DM) in adults, 2) juvenile dermatomyositis, 3) amyopathic DM, 4) cancer-associated DM, 5) polymyositis, 6) immune-mediated necrotizing myopathy, 7) inclusion body myositis, and 8) overlap myositis.1 These categories help classify the myopathies based on clinical and histologic features. The incidence of IIM is estimated at…
Case Report: Tumor Treatment Unleashes Autoimmunity
Immune checkpoint inhibitors (ICIs) targeting the cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) or programmed cell death protein 1 (PD-1) axes have revolutionized therapy and improved survival in advanced cancers. However, these immune system modulators also lead to immune-related adverse events (IRAEs).1,2 In clinical trials, IRAEs mainly involved the gastrointestinal tract, skin, endocrine glands, liver and lung,…