Remove Coronary Angiogram Remove Physiology Remove Tachycardia
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What Lies Beneath

EMS 12-Lead

From afar, there is gross tachycardia, cadence irregularities, and narrow QRS complexes that may, or may not, be Sinus in origin; and finally – a cacophony of wide complexes that might very well be ventricular in origin. McLaren : We’ve answered the first question – Sinus Tachycardia with episodic runs of wide QRS (RBBB morphology) and PVC’s.

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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. Learning points 1] Acute Coronary Syndrome has many shades of clinical manifestation.

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Diffuse Subendocardial Ischemia on the ECG. Left main? 3-vessel disease? No!

Dr. Smith's ECG Blog

The diagnostic coronary angiogram identified only minimal coronary artery disease, but there was a severely calcified, ‘immobile’ aortic valve. Aortic angiogram did not reveal aortic dissection. 3) Anemia, or poisons of hemoglobin such as methemoglobin or CO 4) Fixed coronary stenosis that limits flow. Circulation.