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Acute OMI or "Benign" Early Repolarization?

Dr. Smith's ECG Blog

Note that as many as 7% of patients with acute coronary syndrome have chest pain reproducible on palpation [Lee, Solomon]. which reduces the pre-test probability of acute coronary syndrome by less than 30% [McGee]. The note also says "slight lateral ST elevations noted, likely early repolarization since unchanged compared to 2014."

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Is OMI an ECG Diagnosis?

Dr. Smith's ECG Blog

The ECG is just a test: a Bayesian approach to acute coronary occlusion If a patient with a recent femur fracture has sudden onset of pleuritic chest pain, shortness of breath, and hemoptysis, the D-dimer doesn’t matter: the patient’s pre-test likelihood for PE is so high that they need a CT. But does this matter?

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Occlusion myocardial infarction is a clinical diagnosis

Dr. Smith's ECG Blog

For the same reason, you should not delay coronary angiography because pain resolves with morphine. Both the outdated 2014 AHA/ACC guidelines and the updated 2023 ESC guidelines recommend immediate invasive management of patients with uncontrolled chest pain. So I would be worried about inferior OMI. At midnight.

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REBEL Cast Ep114: High Flow O2, Suspected ACS, and Mortality?

REBEL EM

Background: Historically, we have treated acute coronary syndrome with supplemental oxygen regardless of the patient ’ s oxygen saturation. More recent evidence, however, demonstrates that too much oxygen could be harmful ( AVOID Trial ) by causing coronary vasoconstriction and increasing oxidative stress. Low O2 protocol: 3.1%

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Acute artery occlusion -- which one?

Dr. Smith's ECG Blog

Thanks in part to rapid bedside diagnosis, the patient was able to avoid emergent coronary angiography. Consider the following: We become attuned to looking for acute coronary occlusion in patients who present with acute symptoms to the ED ( E mergency D epartment ). What do you do clinically when the ECG looks like this?

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"A patient just arrived as a transfer for NSTEMI."

Dr. Smith's ECG Blog

I quickly reviewed the patient’s records and saw that she was a 53 year old woman with a history of BMI 40, but no other identifiable risk factors for coronary artery disease. In this patient with stuttering symptoms and rising troponin, there is no other option but to perform emergent coronary angiography. Hers is shown below.

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SGEM#192: Sometimes, All You Need is the Air that You Breathe

The Skeptics' Guide to EM

Studies have shown that oxygen can cause vasoconstriction, increase blood pressure and decrease coronary artery blood flow ( Kones et al AM J Med 2011). Oxygen supplementation in non-hypoxemic patients with acute myocardial infarction has been a hot topic since the publication of the AVOID-trial ( Stub et al Circulation 2014).