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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] A meta-review from 2022 shows that the overall risk for myopericarditis after receiving a COVID-19 vaccine is low. [6]
Figure A shows the location of the heart and a normal heart and pericardium (the sac surrounding the heart). The inset image is an enlarged cross-section of the pericardium that shows its two layers of tissue and the fluid between the layers. Figure B shows the heart with pericarditis.
The sign is often best visualized in lead II and lateral precordial leads. In addition, Spodick's sign may also serve as an important distinguishing electrocardiographic tool between the acute pericarditis and acute coronary syndrome. The presence of a classical Spodick's sign is often a giveaway to the diagnosis. [citation needed]
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.
It supports this diagnosis if it shows at least two of the following abnormalities: a) an increased signal in T2-weighted images; b) an increased global myocardial early enhancement ratio between myocardial and skeletal muscle in enhanced T1 images and c) one or more focal enhancements distributed in a non-vascular pattern in late enhanced T1 ...
Postpericardiotomy syndrome (PPS) is an immune phenomenon that occurs days to months (usually 1–6 weeks [1]) after surgical incision of the pericardium (membranes encapsulating the human heart). [2]
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 ...
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