Myocardial infarction

Acute myocardial infarction (AMI or MI), commonly known as a heart attack, is a serious, sudden heart condition usually characterized by varying degrees of chest pain or discomfort, weakness, sweating, nausea, vomiting, and arrhythmias, sometimes causing loss of consciousness. It occurs when a part of the heart muscle is injured, and this part may die because of sudden total interruption of blood flow to the area. It is often a life-threatening medical emergency which demands both immediate attention and activation of the emergency medical services.

See also

• Dressler's syndrome
• Coronary heart disease
• Hibernating myocardium
• Reperfusion
• Stunned myocardium
• Ventricular remodeling
• Cardiac arrest