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Pacemaker Failure to Capture | Reference Guide


EKG Strip

ecg rhythm strip for reference guide


EKG Features

Rate: Slow or normal
Rhythm: Irregular
P Wave:
PR Interval:
QRS:
Indicated by the presence of a pacing spike, but a waveform will not immediately follow it.
Pacemaker failure to capture occurs when the pacemaker does not depolarize the myocardium. On a rhythm strip, this can be observed as pacemaker impulses (spikes) which are not followed by p waves and QRS complex.
External Source:



Authors and Reviewers

Authored by Thomas O'Brien
EKG tracings reviewed by Dr. Pedro Azevedo, MD, Cardiology
Medically reviewed by Dr. Jonathan Keroes, MD, Cardiology
Last Update: 11/8/2021

Sources



Return to EKG Reference Guide Index


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