Dr. Smith's ECG Blog

DECEMBER 7, 2023

Learning Points: Type 1 MI is the type we are most familiar with: rupture of atherosclerotic plaque with production thrombus or platelet fibrin aggregates. Buller, C. Starovoytov, A., Robinson, S., Vuurmans, T., Humphries, K., & & Mancini, G. Spontaneous coronary artery dissection. But not all OMI is atherosclerotic in nature.

SCAD 124

SCAD Ischemia Coronary Artery Disease Cardiomyopathy 124

Dr. Smith's ECG Blog

NOVEMBER 4, 2022

Methods STEMI activations between January 2014 and April 2018 at the University of Arizona Medical Center were identified. Systematic Assessment of the ECG in Figure-1: My Descriptive Analysis of ECG findings in Figure-1 is as follows: Sinus tachycardia at ~110/minute. A normal PR interval. No chamber enlargement.

Ischemia 52

Ischemia STEMI Stenosis Chest Pain 52

Dr. Smith's ECG Blog

DECEMBER 16, 2024

This was ruptured plaque with thrombus. The Initial ECG in Case #1: The ECG in Figure-1 shows sinus tachycardia at ~110/minute with markedly increased QRS amplitude and marked chest lead ST elevation. We have often made the point in Dr. Smith's ECG Blog that in general it is not common to see tachycardia with an uncomplicated MI.

Chest Pain 105

Chest Pain STEMI Aortic Ultrasound 105

Dr. Smith's ECG Blog

MARCH 8, 2025

In my review of the literature, there are many articles which purport to demonstrate an acutely increased risk of plaque rupture from emotional stress, but I could not find any credible case reports that were not at least as likely to be takotsubo. Mechanisms of plaque formation and rupture. Coronary plaque disruption.

Cardiomyopathy 75

Cardiomyopathy Myocardial Infarction Defibrillator Bradycardia 75