Summary ECG assesment of myocardial ischemia and myocardial infarction

ECG Myocardial ischemia and infarction
ECG example with ST elevation




Ischemia (4 signs)
1. Hyperacute T waves (early sign)




2. ST-segment elevation/depression




3. Q waves

, 4. T wave inversion




• 4 signs of ischemia should be present in 2 contiguous (side-by-side) leads




1. ST Elevation and depression
Which part is ischemic

Myocardial part ST Elevation ST Reciprocal Depression
Inferior STEMI • II • I
• III • aVL
• aVF
Lateral STEMI • I • III
• aVL • aVR
• V5
• V6
Anterior STEMI • V2 • II
• V3 • III
• V4 • aVF