https://orcid.org/0000-0002-7059-425X
A 67-years-old gentleman had undergone left bundle branch pacing for symptomatic intra-Hisian block (Panel A). Left bundle branch potential (LBB-Po) was noted after six rapid rotations (Panel B). Additional rotations were given as the peak left ventricular activation time was not short and constant, which resulted in the disappearance of potential. As the unipolar pacing threshold was 0.3 V at 0.5 ms pulse-width and unipolar impedance 620 Ω with LBB current of injury (Type II LBB-COI), we decided to wait before considering lead repositioning for a probable septal perforation. Gradual re-appearance of LBB-Po was noted as the COI settled and final paced QRS confirmed LBB capture.
Conflict of interest: Consultant; Medtronic.
Published on behalf of the European Society of Cardiology. All rights reserved. © The Author(s) 2020. For permissions, please email: [email protected].
This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://dbpia.nl.go.kr/journals/pages/open_access/funder_policies/chorus/standard_publication_model)
