AI Insight
Four major international cardiac societies have collaboratively developed and published the Fifth Universal Definition of Myocardial Infarction, representing the first globally unified classification system for heart attacks. This new definition was presented at the European Society of Cardiology Congress 2026 and aims to standardize how different types of myocardial infarction are identified and categorized worldwide.
Why it matters
A universal definition enables healthcare providers across different countries and healthcare systems to diagnose and treat heart attacks more consistently and effectively. This standardization should improve patient outcomes through better classification, enhance communication among medical professionals internationally, and help patients better understand their specific type of heart attack.
Understand the Science
When a myocardial infarction, such as a heart attack, occurs, being able to classify its type can improve diagnosis and treatment. For the first time, a universal definition of myocardial infarction has been developed and published by four major cardiac societies: the European Society of Cardiology (ESC), the American College of Cardiology (ACC), the American Heart Association (AHA) and the World Heart Federation (WHF). The Fifth Universal Definition of Myocardial Infarction was presented at ESC Congress 2026 on Aug. 30.