ECG Guru - Instructor Resources

A gathering place for instructors of ECG and cardiac topics.

       

Subscribe to me on YouTube

Junctional escape rhythm

Complete AV Block With Junctional Escape Rhythm

Thu, 09/03/2015 - 23:02 -- Dawn

This ECG was taken from a 90-year-old woman.  We have no other history, unfortunately.  It is a good example of a sinus rhythm with complete AV block, also called third-degree AV block.

The defining characteristics of this rhythm include:   1) an underlying rhythm that is regular and with a physiological rate.  In other words, the P waves are not so fast that they would not be expected to conduct one-to-one.  2)  a second rhythm of regular QRS complexes that is unrelated to the P waves.

ECG Basics: Pacemaker Failure to Capture

Sun, 04/27/2014 - 17:29 -- Dawn

This ECG is taken from a patient with an implanted pacemaker who was experiencing near-syncope.  She was taken to the hospital by EMS, where the pacemaker was adjusted to obtain ventricular capture.  This ECG did not have a Lead II rhythm strip, so the 12-lead ECG is being presented.  The P waves have been marked with a "P", pacemaker spikes marked with an arrow, and the QRS complexes marked with a "J" because they are junctional.

jer5150's picture

Jason's Blog: ECG Challenge of the Week for April 7th - 14th.

At this time of posting, I currently have no clinical data for this patient.  This ECG is of interest because of its arrhythmic and nonarrhythmic elements. 

I can think of at least two possible explanations for the mechanism of this rhythm and both would benefit from being illustrated by a laddergram. 

One mechanism is rather exotic and has not been previously seen here on this website or discussed in the various FB forums.   

jer5150's picture

Jason’s blog: ECG Challenge of the Week for June 24 – July 1, 2012. Pinpoint the primary disturbance.

This patient was seen by his primary care provider (PCP) on an outpatient basis.  The PCP decided to send her patient over to me to perform a routine ECG and establish a baseline, hince the computer's statement below of "No previous ECGs available".  I printed out the above 12-lead ECG and became slightly concerned with the rhythm I was seeing.  Consequently, I also recorded six full pages of continuous rhythm (not shown here).  I don’t ordinarily resort to doing this

All our content is FREE & COPYRIGHT FREE for non-commercial use

Please be courteous and leave any watermark or author attribution on content you reproduce.

Subscribe to RSS - Junctional escape rhythm