Cardiomyopathy and rapid progressive interstitial pneumonia (IP) are potentially fatal complications in polymyositis/dermatomyositis. We experienced a dermatomyositis patient with multiple adverse prognostic factors, complicating rapid progressive IP, macrophage activation syndrome… Click to show full abstract
Cardiomyopathy and rapid progressive interstitial pneumonia (IP) are potentially fatal complications in polymyositis/dermatomyositis. We experienced a dermatomyositis patient with multiple adverse prognostic factors, complicating rapid progressive IP, macrophage activation syndrome (MAS), and cardiomyopathy. IP and MAS improved with strong immunosuppressive therapy, despite which cardiomyopathy developed. Therefore, we applied intravenous high‐dose immunoglobulin therapy (IVIg), and cardiac function improved dramatically. This is the first report to present the effectiveness of IVIg for cardiomyopathy in dermatomyositis.
               
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