Non-ST-Segment-Elevation Myocardial Infarction [NSTEMI]
The milder form of the 2 types of heart attack, an NSTEMI does not produce an ST-segment elevation on an electrocardiogram. See also STEMI
Cardiac
Myocarditis
A rare condition in which the heart muscle becomes inflamed as a result of infection, toxic drug poisoning, or diseases like rheumatic fever, diphtheria, or tuberculosis.
Myocardium
The muscular wall of the heart. It contracts to pump blood out of the heart and then relaxes as the heart refills with returning blood.