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Alternating QRS Morphologies and PR Intervals After Transcatheter Aortic Valve Replacement.


ABSTRACT: Alternating bundle branch block pattern on electrocardiogram (ECG) is a concerning finding with important prognostic implications. This ECG challenge explores the electrophysiological mechanism of a case of alternating bundle branch block with alternating PR intervals. (Level of Difficulty: Beginner.).

SUBMITTER: Kulkarni VT 

PROVIDER: S-EPMC8312116 | biostudies-literature |

REPOSITORIES: biostudies-literature

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