Myopericarditis

Myopericarditis is a combination of both myocarditis and pericarditis appearing in a single individual, namely inflammation of both the pericardium and the heart muscle. It can involve the presence of fluid in the heart.

Naming

When ventricular function is normal, the term myopericarditis is used. Cases with impaired function are labeled perimyocarditis, though the two terms are often used interchangeably. Both will be reflected on an ECG.

In a different naming scheme, inflammation that is predominantly pericarditis with some myocardial involvement is called myopericarditis, while predominant myocarditis with some pericardial involvement is called perimyocarditis.

Triggers

The appearance of myopericarditis is associated with infections such as acute tonsillitis, pneumonia, and gastroenteritis.

The ACAM2000 smallpox vaccine has been known to cause myopericarditis in some people.