Abstract
Myocarditis/inflammatory cardiomyopathy is defined as inflammatory involvement of heart muscle with leukocytic cell infiltration and nonischemic degeneration/necrosis of myocytes.
The actual incidence of myocarditis is unknown, although the disease process is often related to infections. The commonest driver is primary viral infection, although occasionally reactivation of viral infections may be relevant. Furthermore, bacterial, fungal and protozoal infections may be implicated. Other drivers for myocarditis include autoimmune processes, drugs and toxins. Many cases, however, are ultimately designated idiopathic. The patterns for these myocarditis processes are described and the various pathophysiology is discussed.
In reality, many cases of clinical myocarditis cannot be morphologically verified by endomyocardial biopsy. Clinicians, immunologists, pathologists and those using molecular tests must combine their analyses to explore and redefine myocarditis. At present, whilst considerable progress in the understanding of this disease has been made in the last 50 years, it remains a serious challenge!
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Acknowledgment
I am grateful for a long-lasting cooperation with Dr. Sabine Pankuweit, Universitätsklinikum Giessen & Marburg, Germany, who has been very educational and always kind. Sabine has once again been of great help when preparing this chapter.
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Baandrup, U. (2013). Myocarditis/Inflammatory Cardiomyopathy. In: Suvarna, S. (eds) Cardiac Pathology. Springer, London. https://doi.org/10.1007/978-1-4471-2407-8_8
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DOI: https://doi.org/10.1007/978-1-4471-2407-8_8
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