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Right precordial ST depression in a patient with chest pain

Dr. Smith's ECG Blog

Computer read: "Non-specific ST abnormality, consider anterior subendocardial ischemia" There are very poor R-waves in V1-V4 suggesting old anterior MI. Firstly, subendocardial ischemia does not localize on 12-Lead ECG. But the real question at hand is: Are these precordial ST-depressions a result of subendocardial ischemia?

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What happens when you give morphine for chest pain in ACS? And what is pseudo-normalization of T-waves?

Dr. Smith's ECG Blog

This case highlights how T-waves are very important in the assessment of ischemia and dynamic changes in acute coronary syndrome. I have often seen colleagues worry about T-wave inversions as a sign of ongoing ischemia. T-wave inversions in the acute phase of ACS are usually a welcome finding, indicating reperfusion.