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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. [5]
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
Complications can include cardiac tamponade, myocarditis, and constrictive pericarditis. [1] [2] Pericarditis is an uncommon cause of chest pain. [9] About 3 per 10,000 people are affected per year. [2] Those most commonly affected are males between the ages of 20 and 50. [10] Up to 30% of those affected have more than one episode. [10]
The study only documented myocarditis and pericarditis, rare inflammatory heart conditions, in the vaccinated group, but the incidences were very rare − 27 cases per million after the first dose ...
Myocarditis has been reported to be a major cause of sudden cardiac death (SCD) in infants, adolescents, and young adults, but the reported rates show wide variation (1 to 14 percent) among young people depending on differences in SCD definition and classification/ definition of myocarditis post-mortem as well as heterogeneity of study populations.
The Centers for Disease Control and Prevention is monitoring reports of myocarditis and pericarditis after the mRNA COVID-19 vaccination. The rare cases have most frequently involved adolescents ...
Depending on severity, dosing is between 300 and 800 mg every 6–8 hours for days or weeks as needed. An alternative protocol is aspirin 800 mg every 6–8 hours. [14] Dose tapering of NSAIDs may be needed. In pericarditis following acute myocardial infarction, NSAIDs other than aspirin should be avoided since they can impair scar formation.
All COVID-19 vaccines from the three manufacturers have been linked to an increased risk of inflammation of heart muscle, or pericarditis or myocarditis—most of the studies involving the risk ...