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Cardiology Teaching Package

A Beginners Guide to Normal Heart Function, Sinus Rhythm & Common Cardiac Arrhythmias

ECG Changes Associated with Myocardial Injury

Previously we discussed the two categories for myocardial injury that existed prior to 2001:

Below are rhythm strip examples of specific ECG changes:

Image: ST Elevation

ST Elevation

Image: ST Depression

ST Depression

Image: T Wave Invesion

T Wave Invesion

Image: Flat T Wave

Flat T Wave

It is now possible to identify a third condition that is a smaller myocardial infarction but with ECG changes consistent with unstable angina. The two conditions can now be differentiated by a Troponin blood test.

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