Definition of Myocardial infarction
Myocardial infarction: A heart attack. Abbreviated MI.
The term "myocardial infarction" focuses on the myocardium (the heart muscle) and the changes that occur in it due to the sudden deprivation of circulating blood. The main change is necrosis (death) of myocardial tissue.
The word "infarction" comes from the Latin "infarcire" meaning "to plug up or cram." It refers to the clogging of the artery.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 8/28/2013
Medical Dictionary Definitions A - Z
Search Medical Dictionary
Healthy Heart Resources
- Early Care for Your Premature Baby
- What to Eat When You Have Cancer
- When to Take More Pain Medication