Prevalence of other connective tissue diseases in idiopathic inflammatory myopathies

2019 ◽  
Vol 39 (10) ◽  
pp. 1777-1781 ◽  
Author(s):  
Adam Maundrell ◽  
Susanna Proudman ◽  
Vidya Limaye
2015 ◽  
Author(s):  
Frederick W Miller ◽  
Adam Schiffenbauer

The idiopathic inflammatory myopathies (IIMs), also known as myositis syndromes, are a collection of heterogeneous disorders that share the common feature of chronic muscle inflammation of unknown cause. These disorders may occur in adults or children and are sometimes associated with other connective tissue disorders and a variety of cancers. A combined clinical, laboratory, and pathologic evaluation is needed to establish the diagnosis of these acquired systemic connective tissue diseases to rule out the many disorders that mimic IIMs. This module reviews the classification of IIMs, including polymyositis, dermatomyositis, inclusion body myositis, myositis associated with other connective tissue diseases and cancer, and antisynthetase syndrome. The epidemiology; etiology, genetics, and environmental factors; pathophysiology and pathogenesis; diagnosis; differential diagnosis; treatment; and prognosis of IIMs are discussed. Tables describe the criteria for polymyositis, dermatomyositis, and inclusion body myositis; well-characterized subgroups of the IIMs in adults and children; presentation of polymyositis; differential diagnosis of muscle weakness or pain; features that assist in discriminating IIMs from other myopathies; goals for managing IIMs; and key factors for achieving adequate corticosteroid response in IIMs. Figures demonstrate skin findings in IIMs, muscle pathology of IIMs, magnetic resonance imaging of three patients with different IIMs, and treatment approaches to the management of myositis patients. This review contains 4 highly rendered figures, 8 tables, and 80 references.


2015 ◽  
Author(s):  
Frederick W Miller ◽  
Adam Schiffenbauer

The idiopathic inflammatory myopathies (IIMs), also known as myositis syndromes, are a collection of heterogeneous disorders that share the common feature of chronic muscle inflammation of unknown cause. These disorders may occur in adults or children and are sometimes associated with other connective tissue disorders and a variety of cancers. A combined clinical, laboratory, and pathologic evaluation is needed to establish the diagnosis of these acquired systemic connective tissue diseases to rule out the many disorders that mimic IIMs. This module reviews the classification of IIMs, including polymyositis, dermatomyositis, inclusion body myositis, myositis associated with other connective tissue diseases and cancer, and antisynthetase syndrome. The epidemiology; etiology, genetics, and environmental factors; pathophysiology and pathogenesis; diagnosis; differential diagnosis; treatment; and prognosis of IIMs are discussed. Tables describe the criteria for polymyositis, dermatomyositis, and inclusion body myositis; well-characterized subgroups of the IIMs in adults and children; presentation of polymyositis; differential diagnosis of muscle weakness or pain; features that assist in discriminating IIMs from other myopathies; goals for managing IIMs; and key factors for achieving adequate corticosteroid response in IIMs. Figures demonstrate skin findings in IIMs, muscle pathology of IIMs, magnetic resonance imaging of three patients with different IIMs, and treatment approaches to the management of myositis patients. This review contains 4 highly rendered figures, 8 tables, and 80 references.


2015 ◽  
Author(s):  
Frederick W Miller

The idiopathic inflammatory myopathies (IIMs), also known as myositis syndromes, are a collection of heterogeneous disorders that share the common feature of chronic muscle inflammation of unknown cause. These disorders may occur in adults or children and are sometimes associated with other connective tissue disorders and a variety of cancers. A combined clinical, laboratory, and pathologic evaluation is needed to establish the diagnosis of these acquired systemic connective tissue diseases to rule out the many disorders that mimic IIMs. This module reviews the classification of IIMs, including polymyositis, dermatomyositis, inclusion body myositis, myositis associated with other connective tissue diseases and cancer, and antisynthetase syndrome. The epidemiology; etiology, genetics, and environmental factors; pathophysiology and pathogenesis; diagnosis; differential diagnosis; treatment; and prognosis of IIMs are discussed. Tables describe the criteria for polymyositis, dermatomyositis, and inclusion body myositis; well-characterized subgroups of the IIMs in adults and children; presentation of polymyositis; differential diagnosis of muscle weakness or pain; features that assist in discriminating IIMs from other myopathies; goals for managing IIMs; and key factors for achieving adequate corticosteroid response in IIMs. Figures demonstrate skin findings in IIMs, muscle pathology of IIMs, magnetic resonance imaging of three patients with different IIMs, and treatment approaches to the management of myositis patients. This review contains 4 highly rendered figures, 8 tables, and 80 references.


Rheumato ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 5-16
Author(s):  
Francesca Oliviero ◽  
Paola Galozzi ◽  
Elisabetta Zanatta ◽  
Mariele Gatto ◽  
Paolo Spinella ◽  
...  

The aim of this review is to identify and discuss randomized clinical trials conducted in patients with connective tissue diseases, including systemic lupus erythematosus, idiopathic inflammatory myopathies, vasculitis, Sjögren’s syndrome, and systemic sclerosis. Although limited, the results obtained with bioactive compounds, namely n-3 polyunsaturated and short-chain fatty acids, demonstrate that dietary intervention and nutritional counseling might have an important role as adjuvant therapy in patients with connective tissue diseases, particularly in the light of the comorbidities which characterize these conditions.


Biomolecules ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 111
Author(s):  
Aleksandra H. Opinc ◽  
Joanna S. Makowska

Idiopathic inflammatory myopathies are a group of rare connective tissue diseases with a well-documented association with malignancy. The mechanisms underlying the increased risk of neoplasms in the course of myositis are not fully understood. The Pubmed database has been thoroughly screened for articles concerning cancer-associated myositis (CAM). The article summarizes the current state of knowledge on the epidemiology and pathogenesis of CAM. Furthermore, it analyses potential risk and protective factors for developing CAM, with particular emphasis on the association with distinct serological profiles. The review summarizes recommendations proposed so far for the management of CAM and presents a novel scheme for cancer screening proposed by the authors. Moreover, promising areas requiring further research were indicated.


2020 ◽  
pp. 4537-4546
Author(s):  
Ingrid E. Lundberg ◽  
Hector Chinoy ◽  
Robert Cooper

The idiopathic inflammatory myopathies are a heterogenous group of disorders characterized by muscle weakness, inflammation in muscle tissue, and with frequent extramuscular involvement. Autoantibodies are common, supporting the notion of these disorders being autoimmune. Typically, inflammatory cell infiltrates are found in muscle biopsies. Other organs are frequently involved such as skin, lungs, joints, gastrointestinal tract, and the heart. These heterogenous disorders can be subclassified based on clinical and histopathological features, or by autoantibody specificities. The idiopathic inflammatory myopathies have traditionally comprised polymyositis (PM), dermatomyositis (DM), juvenile DM, PM/DM overlapping with another connective tissue disease, and inclusion body myositis. More recently a subgroup with similar clinical features but with no or scarce inflammation and with pronounced muscle fibre necrosis has been identified and termed immune-mediated necrotizing myopathy.


2016 ◽  
Vol 10 (1) ◽  
pp. 141-149 ◽  
Author(s):  
Suparaporn Wangkaew ◽  
Songkiet Suwansirikul ◽  
Kantawut Aroonrungwichian ◽  
Nuntana Kasitanon ◽  
Worawit Louthrenoo

Objectives: To compare the muscle pathology findings among subgroups of idiopathic inflammatory myopathies (IIM) patients, and to determine the correlations of muscle biopsy scores with muscle power and creatine kinase (CK). Methods: The medical records of IIM patients consisting of the demographic data, clinical parameters and laboratory conducted were retrospectively reviewed. Their initial muscle biopsies were reviewed, and four domains were scored: inflammation, vascular, muscle, and connective tissue. Results: Ninety-five IIM patients (28 patients with idiopathic polymyositis (PM) 9 idiopathic dermatomyositis (DM), 5 DM associated with malignancy, and 53 PM/DM associated with connective tissue disease) with median (IQR: Q1, Q3) disease duration of 1.2 (0.5, 3.1) months were included. No significant differences in initial muscle pathology findings and muscle pathology score among the subgroups were found. Muscle degeneration and endomysial fibrosis scores were negatively correlated with muscle power (r=-0.23 and-0.24, respectively, p<0.05) and positively correlated with CK (r=0.27 and 0.39, respectively, p<0.01). No significant correlation was detected either inflammation or vasculitis scores with muscle power and CK levels. Conclusion: In this study, muscle biopsy cannot be used to differentiate among subgroups of IIM patients. In addition, we found only modest correlation of muscle biopsy scores with muscle power and CK. Further study is necessary to confirm our findings.


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