There are two QRS complexes that become wide in a right bundle branch block pattern. This can occur at fast heart rates when the right bundle has not yet had a chance to recover from it's ...
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Second-Degree Heart Block: Mobitz Type 1 OverviewWith Mobitz type 1 second-degree heart block, the PR intervals get longer, and QRS waves are delayed and then dropped, which happens cyclically and adopts a regular pattern. For instance ...
This ECG shows a wide-complex tachycardia in a right bundle branch block pattern going quite fast (heart rate about 150 BPM). Note the morphology of the QRS complex in lead V6. There is a RS ...
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