Is It Complete Left Bundle Branch Block? Just Ablate the Right Bundle | Zendy

Ali Hussam | Zendy; Lupo Pierpaolo | Zendy; Foresti Sara | Zendy; De Ambroggi Guido | Zendy; Epicoco Gianluca | Zendy; Fundaliotis Angelica | Zendy; Cappato Riccardo | Zendy

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Is It Complete Left Bundle Branch Block? Just Ablate the Right Bundle

Author(s) -

Ali Hussam,

Lupo Pierpaolo,

Foresti Sara,

De Ambroggi Guido,

Epicoco Gianluca,

Fundaliotis Angelica,

Cappato Riccardo

Publication year - 2017

Publication title -

annals of noninvasive electrocardiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.494

H-Index - 48

eISSN - 1542-474X

pISSN - 1082-720X

DOI - 10.1111/anec.12386

Subject(s) - left bundle branch block , medicine , bundle , cardiology , bundle of his , tachycardia , bundle branch block , electrocardiography , electrical conduction system of the heart , heart failure , materials science , composite material

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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