Junctional bradycardia EKG examples
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mugilan Poongkunran M.B.B.S [2]
Overview
Marked sinus bradycardia or SA node exit block can result in an escape AV nodal or junctional bradycardia with narrow QRS complex at a rate of 40-60 beats per minute.
EKG Examples
Shown below is an EKG with a nodal escape rhythm. Note the lack of P or P' waves. Often the P' wave is hidden in the QRS as the nodal escape conducts down to the ventricle and up to the atrium in a fashion such that the QRS and P' wave occur simultaneously.
Copyleft images obtained courtesy of ECGpedia, http://en.ecgpedia.org.
Example of junctional escape rhythm / junctional bradycardia on telemetry:
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