Remove AFIB Remove Cardiogenic Shock Remove Tachycardia
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Chest discomfort, Sinus Tachycardia, Q-waves, ST Elevation, and Intermittent Wide Complex Tachycardia. Activate the Cath Lab?

Dr. Smith's ECG Blog

Because of the tachcardia, I would expect her to be very poor left ventricular function and maybe Cardiogenic shock. Still Irregular Blood pressure during these rhythms was adequate; there was no shock. The patient spontaneously converted back to sinus tachycardia. Later, I obtained more clinical history.

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Arrhythmia? Ischemia? Both? Electricity, drugs, lytics, cath lab? You decide.

Dr. Smith's ECG Blog

The axiom of "type 1 (ACS, plaque rupture) STEMIs are not tachycardic unless they are in cardiogenic shock" is not applicable outside of sinus rhythm. 2) Tachycardia to this degree can cause ST segment changes in several ways. Sometimes you must correct the rhythm to see what lies underneath. Is this inferor STEMI?

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Noisy, low amplitude ECG in a patient with chest pain

Dr. Smith's ECG Blog

We can see enough to make out that the rhythm is sinus tachycardia. Tachycardia is unusual for OMI, unless the patient is in cardiogenic shock (or getting close). The April 6, 2023 post — excessive baseline artifact misdiagnosed as AFib ( instead of sinus rhythm with AV Wenckebach — as in Figure-4 in this post ).

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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

With the history of Afib, CTA abdomen was ordered to r/o mesenteric ischemia vs ischemic colitis vs small bowel obstruction. An elderly man with sudden cardiogenic shock, diffuse ST depressions, and STE in aVR Literature 1. A slightly prolonged QTc ( although this is difficult to assess given the tachycardia ).