A Rare Case of Non-Ischemic Dilated Cardiomyopathy Revealing Inclusion Body Myositis

Inclusion body myositis is the most common inflammatory myopathy after age 50. Unlike polymyositis and dermatomyositis, in which cardiac involvement is relatively common, current evidence indicates that inclusion body myositis is not associated with cardiac disease such as dilated cardiomyopathy. We report the observation of a 57-year-old patient known to be type 2 diabetic under treatment, admitted with acute congestive heart failure. the paraclinical examinations carried out were in favor of inclusion body myositis complicated by heart failure and dilated cardiomyopathy, the patient was treated with boluses of corticosteroids and immunosuppressants as well as treatment of heart failure, this attitude has improved his symptoms as well as his quality of life. The interest of this work is to underline the importance of diagnosis and early treatment in the management of myositis complicated by cardiovascular manifestations, particularly dilated cardiomyopathy.