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What Lies Beneath

EMS 12-Lead

Question 1: What is the rhythm? Beat 1 : Sinus, narrow QRS complex. The assumption is that a premature complex discharged prior to Beat 1, which prolonged its respective refractory period in the same manner as Beat 5. The coronary angiogram revealed no critical stenosis, or acute plaque ulceration.

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How important are old ECGs in Non-obvious cases of potential OMI?

Dr. Smith's ECG Blog

We who know ischemic ECGs know that really when T-wave inversion is specific for coronary thrombosis that it indicates reperfusion of the artery, not active occlusion. Learning Point: 1. For examples of this phenomenon — See My Comment in the February 14, 2018 — July 21, 2020 — and December 22, 2022 posts in Dr. Smith's ECG Blog ).

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Inotropes and Vasopressors: Doses, indications, contraindications and effects

ECG & Echo Learning

Most agents exhibit both vasopressor and inotropic effects (Figure 1). Below follows a drug manual for use in the CCU (coronary care unit), ICU (intensive care unit) or ER (emergency room). μg/kg/min + + + ++ Low dose dopamine stimulates D1 receptors and induces vasodilation in coronary, renal, cerebral and mesenteric vessels.

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Chest pain and shock: Is there a right ventricular OMI on this ECG? And should he undergo trancutaneous pacing?

Dr. Smith's ECG Blog

We recorded an ECG in which V1-V3 were put in the position of V4R-V6R, and V4-6 were placed in V7-9 to (academically) confirm posterior OMI. 1 mg of Atropine was given and the heart rate increased transiently to 60. Atropine usually works in junctional rhythm with a narrow complex 9. What to do? RVMI explains part of the shock.

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A 58 year old with Weakness and more than 4 mm ST Elevation in V3

Dr. Smith's ECG Blog

The coronaries were clean (this is not the gold standard, however, as some patients with ischemic ST elevation may have clean coronaries). ACTUAL CORONARY ANATOMY: Dominance: Right LM: A 5 mm vessel which bifurcates into the LAD and LCx coronary artery. QRSV2 = 16 RAV4 = 14 Value = 20.24 (The cutoff of 18.2

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Is this a STEMI? No, not by definition! Why not? Why is this Important?

Dr. Smith's ECG Blog

A 40-something male presented with dyspnea and left arm numbness, and perhaps some chest tightness, for 1 1/2 hours. My Comment , by K EN G RAUER, MD ( 10/24/2018 ): = Important teaching points are made in this post by Dr. JACC 2016;67:1531. Here is his triage ECG: There is massive STE in V3-V6, and also STE in II, III, aVF.

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Acute OMI or "Benign" Early Repolarization?

Dr. Smith's ECG Blog

Written by Willy Frick A man in his 50s with a history of hypertension, dyslipidemia, type 2 diabetes mellitus, and prior inferior OMI status post DES to his proximal RCA 3 years prior presented to the emergency department at around 3 AM complaining of chest pain onset around 9 PM the evening prior. ECG 1 What do you think? Grines, C.

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