Aneurysm Ischemia Pericarditis 
Dr. Smith's ECG Blog
JUNE 18, 2011
The old ECG has a Q-wave with persistent ST elevation in lead III, and some reciprocal ST depression (typical for aneurysm morphology). This rules out pericarditis, which essentially never has reciprocal ST depression. This is "Persistent ST elevation after previous MI" or "LV aneurysm morphology".
Dr. Smith's ECG Blog
FEBRUARY 29, 2016
Normal RBBB, no evidence of ischemia. This may be permanent and may be associated with echocardiographic dyskinesis (aneurysm). LV aneurysm is common in completed, full thickness (transmural) MI, which is what we have here. Here is the patient's previous ECG (Figure 2): Previous ECG. R-waves of of normal height.
Dr. Smith's ECG Blog
MARCH 11, 2016
More likely, the patient had crescendo angina, with REVERSIBLE ischemia for 48 hours that only became potentially irreversible (STEMI) at that point in time. During the 48 hours of angina, such reversible ischemia often leads to myocardial stunning with akinesis of the myocardial wall that puts it at risk for thrombus. Re-occlusion 2.
Dr. Smith's ECG Blog
JANUARY 9, 2023
Repeat CT angio chest (not CT coronary, unclear what protocol) showed possible LAD aneurysm and thrombus. Finally, coronary angiography was performed (at least 5 days after presentation) which confirmed LAD aneurysm with large thrombus burden, TIMI 0 flow, thrombectomy performed. Pericarditis? No further cath details available.
Dr. Smith's ECG Blog
MARCH 11, 2019
You do NOT see this in normal variant STE, nor in pericarditis. The only time you see this without ischemia is when there is an abnormal QRS, such as LVH, LBBB, LV aneurysm (old MI with persistent STE) or WPW." Here is the patient's troponin I profile: These were interpreted as due to demand ischemia, or type II MI.
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