ECG: ST segment abnormalities

Question 1

What criteria must be met on ECG to identify true ST elevation?

Answer 1

> 1mm ST elevation in at least 2 continguous leads (e.g. 2 anterior leads)

V2-V3 require 2mm

N.B. 1mm is 1 small box vertically

Question 2

What are causes of ST elevation?

Answer 2

1. STEMI
2. Benign early repolarisation
3. Pericarditis
4. Vasospam (Prinzmetal angina)
5. Pulmonary embolism
6. LV aneurysm
7. LV hypertrophy
8. LBBB