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Acute non-fulminant myocarditis has a less distinct onset in contrast to fulminant myocarditis, and evolves over days to months. [16] [17] While the symptoms of acute myocarditis overlap with those of fulminant myocarditis, they do not typically occur at rest, and treatment does not require the use of mechanical circulatory support. [17]
Cardiomyopathy is a group of primary diseases of the heart muscle. [1] Early on there may be few or no symptoms. [1] As the disease worsens, shortness of breath, feeling tired, and swelling of the legs may occur, due to the onset of heart failure. [1]
Viral cardiomyopathy occurs when viral infections cause myocarditis with a resulting thickening of the myocardium and dilation of the ventricles. These viruses include Coxsackie B and adenovirus, echoviruses, influenza H1N1, Epstein–Barr virus, rubella (German measles virus), varicella (chickenpox virus), mumps, measles, parvoviruses, yellow fever, dengue fever, polio, rabies, and the ...
(Reuters) -The U.S. Centers for Disease Control and Prevention said on Thursday it had received reports of eight cases of myocarditis, a type of heart inflammation, in children aged 5-11 years who ...
Or, it may be the late sequelae of acute viral myocarditis, such as with Coxsackie B virus and other enteroviruses [14] possibly mediated through an immunologic mechanism. [15] Specific autoantibodies are detectable in some cases. [16] Other causes include: Chagas disease, due to Trypanosoma cruzi.
Nature, 2024, Myocarditis associated with COVID-19 vaccination. MedrXiv, May 20, OpenSAFELY: Effectiveness of COVID-19 vaccination in children and adolescents. Thank you for supporting our journalism.
Eosinophilic myocarditis is often viewed as a disorder that has three progressive stages. The first stage of eosinophilic myocarditis involves acute inflammation and cardiac cell necrosis (i.e. areas of dead cells); it is dominated by symptoms characterized as the acute coronary syndrome such as angina, heart attack and/or congestive heart failure.
Endocardial fibroelastosis (EFE) is a rare heart disorder usually occurring in children two years old and younger. [1] It may also be considered a reaction to stress, not necessarily a specific disease. [2] It should not be confused with endomyocardial fibrosis. [citation needed]