Early Repolarization
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Syndrome
1. Normal varient most commonly seen in young males.
2. The early repolariztion (relaxation) of some myocardial fibers may deviate the ST upwards in a concave pattern, especially when R waves high with tall peaked T waves.
3. The J point is frequently elevated (where the QRS joins the concave ST elevation).
Differentiation from Pericarditis
» A ST/T ratio in V6 of 0.25 will allow good separation of the two entities.
Differentiation from MI
» ST segment elevation is typically less pronounced (equal to or less than 0.05mV) and the ventricular surface area is greater (more leads involved)
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