Electrocardiographic predictors of successful resynchronization of left bundle branch block by His bundle pacing.

ABSTRACT:

Background

His bundle pacing (HBP) is an alternative to biventricular pacing (BVP) for delivering cardiac resynchronization therapy (CRT) in patients with heart failure and left bundle branch block (LBBB). It is not known whether ventricular activation times and patterns achieved by HBP are equivalent to intact conduction systems and not all patients with LBBB are resynchronized by HBP.

Objective

To compare activation times and patterns of His-CRT with BVP-CRT, LBBB and intact conduction systems.

Methods

In patients with LBBB, noninvasive epicardial mapping (ECG imaging) was performed during BVP and temporary HBP. Intrinsic activation was mapped in all subjects. Left ventricular activation times (LVAT) were measured and epicardial propagation mapping (EPM) was perform

SUBMITTER: Arnold AD 

PROVIDER: S-EPMC8607473 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature