Remove Embolism Remove SCAD Remove STEMI
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50 yo with V fib has ROSC, then these 2 successive ECGs: what is the infarct artery?

Dr. Smith's ECG Blog

This certainly looks like an anterior STEMI (proximal LAD occlusion), with STE and hyperacute T-waves (HATW) in V2-V6 and I and aVL. How do you explain the anterior STEMI(+)OMI immediately after ROSC evolving into posterior OMI 30 minutes later? This caused a type 2 anterior STEMI.

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1 hour of CPR, then ECMO circulation, then successful defibrillation.

Dr. Smith's ECG Blog

This is a troponin I level that is almost exclusively seen in STEMI. So this is either a case of MINOCA, or a case of Type II STEMI. If the arrest had another etiology (such as old scar), and the ST elevation is due to severe shock, then it is a type II STEMI. I believe the latter (type II STEMI) is most likely.