ST-elevation Myocardial Infarction

ST-elevation myocardial infarction (STEMI) is a term used to describe a transmural myocardial infarction that benefits from immediate percutaneous intervention. According to the fourth universal definition, STEMI is defined as new ST-elevation at the J-point in two contiguous leads with the cut-point ≥1 mm in all leads other than leads V2-V3 where the following cut-points apply:

  1. ≥2 mm in men ≥40 years
  2. ≥2.5 mm in men < 40 years, or
  3. ≥1.5 mm in women regardless of age

Anatomic distribution of the 12-lead ECG.



  1. Thygesen K, Alpert JS, Jaffe AS, et al. Fourth Universal Definition of Myocardial Infarction (2018).; 2018.