Remove Aortic Remove Coronary Angiogram Remove Ischemia
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An undergraduate who is an EKG tech sees something. The computer calls it completely normal. How about the physicians?

Dr. Smith's ECG Blog

This EKG is diagnostic of transmural ischemia of the inferior wall. The Queen of Hearts disagrees, diagnosing OMI with high confidence: Case Continued: The EKG was not immediately recognized by the emergency provider, who ordered a CT scan to rule out aortic dissection at 1419. Lead I also shows reciprocal ST depression.

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Diffuse Subendocardial Ischemia on the ECG. Left main? 3-vessel disease? No!

Dr. Smith's ECG Blog

Look at the aortic outflow tract. The diagnostic coronary angiogram identified only minimal coronary artery disease, but there was a severely calcified, ‘immobile’ aortic valve. Aortic angiogram did not reveal aortic dissection. What do you see? Answer below in the still shot.

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Critical Left Main

EMS 12-Lead

It should be known that each category can easily manifest the generic subendocardial ischemia pattern. In general, subendocardial ischemia is a consequence of global supply-demand mismatch that usually ameliorates upon addressing, and mitigating, the underlying cause. What’s interesting is that the ECG can only detect ischemia.

Angina 52
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90 year old with acute chest and epigastric pain, and diffuse ST depression with reciprocal STE in aVR: activate the cath lab?

Dr. Smith's ECG Blog

His response: “subendocardial ischemia. Smith : It should be noted that, in subendocardial ischemia, in contrast to OMI, absence of wall motion abnormality is common. With the history of Afib, CTA abdomen was ordered to r/o mesenteric ischemia vs ischemic colitis vs small bowel obstruction. Anything more on history?

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Hypertrophic Cardiomyopathy

EMS 12-Lead

There is ventricular hypertrophy in the absence of abnormal loading conditions, such as aortic stenosis, or hypertension, for example – of which the most common variant is Asymmetric Septal Hypertrophy. There is LBBB-like morphology with persistent patterns of subendocardial ischemia.

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A teenager with chest pain, a troponin below the limit of detection, and "benign early repolarization"

Dr. Smith's ECG Blog

CT angiogram chest: no aortic dissection or pulmonary embolism. Young people can suffer acute coronary occlusion, whether by typical atherosclerotic plaque rupture, or by coronary anomalies, coronary aneurysms, dissections, spasm, etc. No further troponins were measured.

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Which patient needs a CT scan?

Dr. Smith's ECG Blog

But it also shows a massive area of total ischemia in the LAD territory: CT shows the infarct The CT is with contrast, which increases density (which looks more white). Angiogram Door to balloon time was 120 minutes (much too long) because of time taken for a CT. Here it is: Type A Aortic Dissection Why was the troponin so elevated?