Management of patients with suspected (peri-)myocarditis and inflammatory dilated cardiomyopathy

Inflammatory cardiomyopathy and myocarditis are considered acquired forms of dilated cardiomyopathy. Whereas consensus documents on the diagnosis of myocarditis and perimyocarditis do exist, guidelines on the specific treatment have been established only for the management of pericardial diseases, which at least partly can be applied in analogy to myocarditis. Presently, feasible clinical pathways are available, which can lead to a correct diagnosis and specific treatment. This is illustrated with two cases of fulminant myocarditis, in one with successful diagnosis and treatment of a cardiac sarcoid and another one in which diagnostic nihilism led to a lethal outcome in giant cell myocarditis at necropsy. A case of active parvo Big-positive myocarditis demonstrates the role of immunoglobulin treatment under these conditions.