Medical Abbreviation
MI
MI is a medical abbreviation with more than one meaning — most commonly Myocardial infarction. Its meaning depends on the clinical context.
What does MI mean?
| Meaning | Context | Field |
|---|---|---|
| Myocardial infarction | Heart attack | Cardiology |
| Mitral insufficiency | Heart valve problem (mitral regurgitation) | Cardiology |
Why it matters
Within cardiology, MI almost always means myocardial infarction (heart attack), but it has historically also meant mitral insufficiency. Modern notes favour "MR" for the valve problem.
Frequently asked questions
Does MI mean heart attack?
Usually yes. MI most commonly means myocardial infarction (heart attack), though historically it could also mean mitral insufficiency.
Related abbreviations
Study reference only — not medical advice. Always consult qualified sources and supervisors for clinical decisions.