Left bundle fascicular versus left bundle trunk pacing: A comparison of their electrical synchrony parameters.

ABSTRACT:

Background

Variation in human left bundle branch (LBB) anatomy has a significant effect on the sequence of left ventricular depolarization. However, little is known regarding the electrophysiological characteristics of pacing different LBB fascicles.

Objective

We aimed to analyse the different electrocardiographic characteristics of LBB pacing (LBBP) attending to the site of pacing at the LBB system.

Methods

In 200 consecutive patients with confirmed LBBP, we distinguished left bundle trunk capture (LBTP) from any LB fascicular pacing (LBFP) based on the presence of LB potentials and paced QRS morphologies. We compared them regarding procedure, LBBP criteria and electrical synchrony parameters.

Results

One hundred and seventy-three patients with LBFP were compa

SUBMITTER: Estevez Paniagua A 

PROVIDER: S-EPMC11480846 | biostudies-literature | 2024 Sep-Oct

REPOSITORIES: biostudies-literature