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  • Title: Is It Complete Left Bundle Branch Block? Just Ablate the Right Bundle.
    Author: Ali H, Lupo P, Foresti S, De Ambroggi G, Epicoco G, Fundaliotis A, Cappato R.
    Journal: Ann Noninvasive Electrocardiol; 2017 Mar; 22(2):. PubMed ID: 27440741.
    Abstract:
    Complete left bundle branch block (LBBB) is established according to standard electrocardiographic criteria. However, functional LBBB may be rate-dependent or can perpetuate during tachycardia due to repetitive concealed retrograde penetration of impulses through the contralateral bundle "linking phenomenon." In this brief article, we present two patients with basal complete LBBB in whom ablating the right bundle unmasked the actual antegrade conduction capabilities of the left bundle. These cases highlight intriguing overlap between electrophysiological concepts of complete block, linking, extremely slow, and concealed conduction.
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