Which segment is primarily analyzed to diagnose an ST-elevation myocardial infarction (STEMI)?
ST segment
A ST-elevation myocardial infarction (STEMI) is diagnosed primarily by analysing the ST segment: significant elevation (≥ 1 mm, or ≥ 2 mm in V2–V3 for men) in two or more contiguous leads, often with reciprocal ST depression, meets universal STEMI criteria.
The P wave, PR interval and T wave are not the primary diagnostic criteria for STEMI, though T-wave hyperacuity may precede ST elevation.
Hence, ST segment.
Similar Questions
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Important Questions from Introduction to Cardiovascular Diseases
Which ECG change is most commonly associated with myocardial ischemia?
A patient presents with chest pain and ST elevation in leads II, III, and aVF. According to the universal definition of MI, which coronary artery is most likely involved, and what is the ECG diagnosis?
Which ECG change is most characteristic of an acute myocardial infarction?
What is a typical ECG finding in patients with cerebral infarct?
In the context of CVS monitoring, which finding in myxedema patients could be explained by their ECG pattern?
