Remove 2010 Remove STEMI Remove Stenosis
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Doctor, should we activate the hospital's "STEMI alert"?

Dr. Smith's ECG Blog

They wanted to know if I would like them to activate the outside hospital's "STEMI alert." But of course, this is not a STEMI by definition as it does not meet STEMI criteria. The STEMI guidelines do state that hyperacute T-waves "may indicate early acute myocardial infarction" but do not discuss it as a "STEMI equivalent."

STEMI 52
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Guidelines would (erroneously) say that this patient who was defibrillated and resuscitated does not need emergent angiography

Dr. Smith's ECG Blog

First high sensitivity troponin I = 4 ng/L (nearly below the limit of detection) Angiogram: --Culprit is 99 % stenosis in the proximal ostial LAD --LCX is a large OM with a large lateral segment, the lateral segement has a diffuse 90% disease in the ostial proximal segment of it. This is FAR LESS than all other studies of shockable arrest.

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Cardiac arrest, defibrillated, diffuse ST depression and ST Elevation in aVR. Why?

Dr. Smith's ECG Blog

The estimated left ventricular ejection fraction is 58 % Aortic stenosis, mild, 9.0 We found that 38% of out of hospital ventricular fibrillation was due to STEMI. Correlation of STEMI in Resuscitated Non-traumatic out-of-hospital Cardiopulmonary Arrest patients with Initial Rhythm and Cardiac Catheterization Findings (Abstract 580).

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A "normal ECG" on a busy night

Dr. Smith's ECG Blog

He wrote in his note that "The EKG showed early repolarization in I, V2-V3 but no clear STEMI pattern." See far below for data on 24 troponin T in STEMI and NSTEMI, and correlation with infarct size. This difficulty results in high lateral OMI being the most commonly missed OMIs by the misguided STEMI criteria.