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Download ECG Quiz 24
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Transcript
A 70 year old man comes to the clinic with this ECG. What is the diagnosis? Answer: Complete heart block with LBBB pattern. He actually has a pacemaker in which is difficult to tell from this ECG so the LBBB is because of the pacemaker lead. You can tell its complete heart block with the following rules 1. Regular P-P interval 2. Regular R-R interval 3. The PR interval is variable There is a small pacing spike just before the QRS visible in V2. Usually pacemakers in people with sinus rhythm have an atrial lead and a ventricular lead in order to keep AV synchrony so its weird why this doesn’t occur in this ECG. You would treat this dysynchrony by checking the pacemaker and altering the settings so that it will detect and pace the atria then sequentially pace the ventricle.
