Remove Bradycardia Remove STEMI Remove Tachycardia
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Tachycardia, fever to 105, and ischemic ST Elevation -- a Bridge too Far

Dr. Smith's ECG Blog

A prehospital ECG was recorded (not shown and not seen by me) which was worrisome for STEMI. Here was his initial ED ECG: There is sinus tachycardia at a rate of about 140 There is profound ST Elevation across all precordial leads, as well as I and aVL. A near 60 year old male called 911 for increasingly severe fever and SOB.

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Cath Lab occupied. Which patient should go now (or does only one need it? Or neither?)

Dr. Smith's ECG Blog

A prehospital “STEMI” activation was called on a 75 year old male ( Patient 1 ) with a history of hyperlipidemia and LAD and Cx OMI with stent placement. The two cases were considered: Patient 1 was recognized by the ED provider and the cardiologist as having resolved “STEMI”. He wrote most of it and I (Smith) edited. It was stented.

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From The Vault: RBBB

EMS 12-Lead

We have borderline sinus bradycardia with 1 ° AVB and occasional PACs. If this was a tachycardia at a rate of 150, it might appear to be a narrow complex tachycardia, when in fact, it would be a wide complex tachycardia! ECG diagnosis: Borderline sinus bradycardia, 1st degree AVB, RBBB, and occasional PACs.

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What are these hyperacute T waves, with STE and T-wave inversion in aVL, and STD in inferior leads?

Dr. Smith's ECG Blog

See many examples of Pseudo STEMI due to hyperkalemia at these two posts: Acute respiratory distress: Correct interpretation of the initial and serial ECG findings, with aggressive management, might have saved his life. But the rate is ~130/minute — which is a bit fast for sinus tachycardia. The patient was treated.

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Distractions

EMS 12-Lead

The shortened PR-interval, specifically, proved to be quite beguiling as it swept crews down a differential diagnosis of intermittent accessory pathway syndrome – insomuch as a “syndrome” of recurrent tachycardia to account for the patient’s symptoms. To which the lead paramedic replied, “Not cardiac; his symptoms are atypical. Is this OMI?

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Diffuse ST depression, and ST elevation in aVR. Left main, right?

Dr. Smith's ECG Blog

My L IST includes the following: i ) LVH with strain; ii ) Ischemia; iii ) Digoxin use; iv ) HypoKalemia and/or HypoMagnesemia; v ) Tachycardia; and , vi ) Any combination of i-thru-v. In my experience, Ive seen U waves not only with low K+/low Mg++ but also in patients with bradycardia, LVH, and sometimes in normal subjects.

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How will you save this critically ill patient? A fundamental and lifesaving ECG interpretation that everyone must recognize instantly.

Dr. Smith's ECG Blog

There was concern that the rhythm might represent ventricular tachycardia, so lidocaine was given and one attempt at cardioversion was performed. See our other countless hyperkalemia cases below: General hyperkalemia cases: A 50s year old man with lightheadedness and bradycardia Patient with Dyspnea. A Very Wide Complex Tachycardia.