Top 5 ECGs You Must Know

Written by Clay Smith.

Top 5 ECG Posts

We want to promote great #FOAMed, and one of the finest medical blogs out there is Dr. Smith's ECG Blog (no relation...alas).  This features some of his top posts and highlights 5 ECG patterns you must know.


ST Depression

Think ST depression only means ischemia?  This post explores 5 patterns of ST depression you need to know.  What do you think about this ECG?

 From Dr. Smith's ECG Blog, smaller than original.  Click image to go to source.  In accordance with Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).

From Dr. Smith's ECG Blog, smaller than original.  Click image to go to source.  In accordance with Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).


Subtle Change - Big Problem

Would you recognize acute LAD occlusion?  It would have ST elevation, right?  Know this pattern with no ST elevation.  This ECG is more subtle.

 From Dr. Smith's ECG Blog, smaller than original.  Click image to go to source.  In accordance with Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).

From Dr. Smith's ECG Blog, smaller than original.  Click image to go to source.  In accordance with Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).


Don't Get Fooled

Wide, bizarre, brady and blocks - one diagnosis unifies all these. Can you guess after looking at these two ECGs?

 From Dr. Smith's ECG Blog, smaller than original.  Click image to go to source.  In accordance with Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).

From Dr. Smith's ECG Blog, smaller than original.  Click image to go to source.  In accordance with Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).

 From Dr. Smith's ECG Blog, smaller than original.  Click image to go to source.  In accordance with Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).

From Dr. Smith's ECG Blog, smaller than original.  Click image to go to source.  In accordance with Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).


Pattern Recognition

This is a pathognomonic ECG that if we haven't trained our minds to see, we will miss; and people could get hurt.  Read the whole post, because there is discussion of another pathognomonic entity you need to know as well.

 From Dr. Smith's ECG Blog, smaller than original.  Click image to go to source.  In accordance with Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).

From Dr. Smith's ECG Blog, smaller than original.  Click image to go to source.  In accordance with Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).


LBBB and Pacemaker

If they have LBBB or a pacemaker, you can't read acute changes...WRONG.  Check these cases out.  First is dyspnea, fatigue, bradycardia s/p atropine.  Second is a different patient.

 From Dr. Smith's ECG Blog, smaller than original.  Click image to go to source.  In accordance with Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).

From Dr. Smith's ECG Blog, smaller than original.  Click image to go to source.  In accordance with Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).

 From Dr. Smith's ECG Blog, smaller than original.  Click image to go to source.  In accordance with Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).

From Dr. Smith's ECG Blog, smaller than original.  Click image to go to source.  In accordance with Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).


Go to the Source

Please click on the ECGs to go to the original source.  Dr. Smith unpacks the significance of these tracings and teaches you what you need to know to read them with excellence.  There is so much there.  Take 15 minutes and immerse your mind in electrocardiography.

If you know of great free open access medical education resources you think we should feature, please add comments to this post on the JournalFeed site.

Disclaimer: All the ECG tracings in this post were used by permission in accordance with Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).  All are from Dr. Smith's ECG Blog, modified to be smaller than the originals.  All images link to the original blog.

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