What is a myocardial infarction?

Option B

Myocardial infarction (MI) (colloquially known as a heart attack) results from interruption of myocardial blood flow and resultant ischaemia and is a leading cause of death worldwide.

MI is mainly due to underlying coronary artery disease. When the coronary artery is occluded, the myocardium is deprived of oxygen. Prolonged deprivation of oxygen supply to the myocardium can lead to myocardial cell death and necrosis.