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Myocarditis is defined as inflammation of the myocardium. Myocarditis can progress to inflammatory cardiomyopathy when there are associated ventricular remodeling and cardiac dysfunction due to chronic inflammation. [6] [7] Symptoms can include shortness of breath, chest pain, decreased ability to exercise, and an irregular heartbeat. [1]
In 1983, an incidence of myocarditis of 1 per 10 000 was reported among Finnish military personnel. [4] Among US military service members vaccinated between December 2002 and March 2003 with Dryvax smallpox vaccine 18 cases of probable myopericarditis were reported, which was an incidence of 7.8 per 100 000 over 30 days.
Pericarditis is the inflammation of the pericardium; Myocarditis is the inflammation of the heart muscle; Endocarditis is the inflammation of the endocardium; Pancarditis, also called perimyoendocarditis, is the inflammation of the entire heart: the pericardium, the myocardium and the endocardium
Pericarditis refers to inflammation of the thin sac surrounding the heart. The most common symptom is sharp chest pain, which is felt in the middle or left side of the chest or sometimes in the ...
Symptoms typically include sudden onset of sharp chest pain, which may also be felt in the shoulders, neck, or back. [1] The pain is typically less severe when sitting up and more severe when lying down or breathing deeply. [1] Other symptoms of pericarditis can include fever, weakness, palpitations, and shortness of breath. [1]
Infective endocarditis is an infection of the inner surface of the heart (endocardium), usually the valves. [1] Signs and symptoms may include fever, small areas of bleeding into the skin, heart murmur, feeling tired, and low red blood cell count.
The onset of purulent pericarditis is usually acute, with most individuals presenting to a medical facility approximately 3 days following the onset of symptoms. [4] As a subtype of pericarditis, purulent pericarditis often presents with substernal chest pain that is exacerbated by deep breathing and lying in the supine position. [5]
The claim: Study shows myocarditis and pericarditis only appear after COVID-19 vaccination, not after COVID-19 infection. A June 24 Facebook post (direct link, archive link) shows an image of ...