ST-elevation myocardial infarction
Also written as: STEMI — ST-elevation myocardial infarction
A type of heart attack characterized by complete blockage of a coronary artery, identifiable by specific electrocardiogram changes.
Full Definition
ST-elevation myocardial infarction (STEMI) represents the most severe form of acute coronary syndrome, caused by complete occlusion of a major coronary artery resulting in full-thickness myocardial necrosis. The condition is diagnosed by characteristic ST-segment elevation on electrocardiogram combined with elevated cardiac biomarkers. STEMI requires immediate reperfusion therapy, typically primary percutaneous coronary intervention within 90 minutes of first medical contact. In cardiology literature, proper hyphenation of 'ST-elevation' when used as a compound modifier is essential, and the acronym STEMI is widely accepted after first mention.
Usage
Usage note: Hyphenate 'ST-elevation' when used as compound modifier. STEMI acronym acceptable after first mention.
In Context
- "Primary percutaneous coronary intervention was performed within 60 minutes of STEMI diagnosis." — Clinical trial report
- "The incidence of ST-elevation myocardial infarction has decreased by 30% over the past decade." — Epidemiological study