Remove Critical Care Remove Ischemia Remove STEMI
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Tachycardia must make you doubt an ACS or STEMI diagnosis; put it all in clinical context

Dr. Smith's ECG Blog

He was rushed by residents into our critical care room with a diagnosis of STEMI, and they handed me this ECG: There is sinus tachycardia with ST elevation in II, III, and aVF, as well as V4-V6. At first glance, it seems the patient is having a STEMI. Then ACS (STEMI) might be primary; this might be cardiogenic shock.

STEMI 52
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De Winter's T-waves are Not a Stable ECG condition. Upright T-waves in Posterior OMI are Distinct from de Winter's waves.

Dr. Smith's ECG Blog

Prehospital ECG: Obvious anterolateral STEMI (Proximal LAD occlusion) The cath lab was activated prehospital by the medics. Perhaps they indicate an open artery with minimal flow and severe subendocardial ischemia, but not total subepicardial ischemia. Interventionalist at the Receiving Hospital: "No STEMI, no cath.

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A "normal ECG" on a busy night

Dr. Smith's ECG Blog

We brought the patient into one of our critical care rooms and immediately got more history while recording this repeat ECG: The STE in I has greatly diminished or entirely disappeared. He wrote in his note that "The EKG showed early repolarization in I, V2-V3 but no clear STEMI pattern." We activated the cath lab.

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A female in her 60s who was lucky to get expert ECG interpretation

Dr. Smith's ECG Blog

Submitted and written by Alex Bracey, with edits by Pendell Meyers and Steve Smith: I was walking through the critical care section of the ED when I overheard a discussion about the following ECG. 3) STEMI criteria failed to identify this acute coronary occlusion, like many others. What do you think?

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Opiate overdose, without chest pain or shortness of breath. Cognitive dissonance.

Dr. Smith's ECG Blog

This EKG was recorded as part of a standing order for critical care. 2 days later This is a typical LVH pattern, without ischemia Patient underwent 4 vessel CABG. He had been smoking an opiate and suddenly collapsed. He was ventilated with BVM on arrival. He awoke with naloxone. He denied any CP or SOB.

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STEMI with Life-Threatening Hypokalemia and Incessant Torsades de Pointes

Dr. Smith's ECG Blog

Here is his ED ECG: There is obvious infero-posterior STEMI. What are you worried about in addition to his STEMI? Comments: STEMI with hypokalemia, especially with a long QT, puts the patient at very high risk of Torsades or Ventricular fibrillation (see many references, with abstracts, below). Crit Care Med.

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A 40-Something male with a "Seizure," Hypotension, and Bradycardia

Dr. Smith's ECG Blog

There is an obvious inferior STEMI, but what else? Besides the obvious inferior STEMI, there is across the precordial leads also, especially in V1. This STE is diagnostic of Right Ventricular STEMI (RV MI). In fact, the STE is widespread, mimicking an anterior STEMI. EKG is pictured below: What do you think?