Heart & Circulation

Myocardial infarction

Also called: Heart attack · MI

What does Myocardial infarction mean?

Death of heart-muscle tissue caused by prolonged interruption of blood supply, most often from a blocked coronary artery.

⚠ This term can describe a potentially urgent or life-threatening condition. This definition is educational and should not be used to decide whether emergency care is needed.

U.S. National Library of Medicine
Understanding Medical Words ↗ National Cancer Institute
Cancer Terms Dictionary ↗ CDC
Vaccine Glossary ↗

This is a plain-language Healthway explanation, not an individual diagnosis. The meaning of a term can change with the clinical context in which it appears.