Remove Biomarkers Remove Pericarditis Remove STEMI
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Occlusion myocardial infarction is a clinical diagnosis

Dr. Smith's ECG Blog

Recall from this post referencing this study that "reciprocal STD in aVL is highly sensitive for inferior OMI (far better than STEMI criteria) and excludes pericarditis, but is not specific for OMI." The ESC states that patients with suspected ACS should go to the cath lab in <2 hours "regardless of ECG or biomarker evidence of MI!!"

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Chest pain followed by 6 days of increasing dyspnea -- what happened?

Dr. Smith's ECG Blog

.: 50% of LAD STEMI have Q-waves by one hour. The exception is with postinfarction pericarditis , in which a completed transmural infarct results in inflammation of the subepicardial myocardium and STE in the distribution of the infarct, and which results in increased STE and large upright T-waves. So it is not necessarily subacute.