Heart symbol
This article is part of a series.
Physical examination
Imaging techniques
Stress testing
Tilt testing
Cardiac catherization
Cardiac arrhythmias
Congenital heart disease
Endocardial disease
Heart failure
Ischaemic heart disease
Pericardial diasease
Valvular heart disease
Vascular disease
Cardiology portal

A myocardial infarction (MI) or acute myocardial infarction (AMI), commonly known as a heart attack, is a medical condition in which the blood supply is cut off to an area of heart muscle, due to a blockage in one of the coronary arteries. If the blood supply is not re-established within a certain period of time, the area of the heart deprived of blood will die resulting in cardiac failure. Myocardial infarction is one of the common causes of cardiac arrest.