Open AccessIs 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) - medicine , left bundle branch block , bundle , right bundle branch block , cardiology , left and right , anatomy , electrocardiography , heart failure , materials science , composite material , structural engineering , engineering
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.