ECG and Pacing Criteria for Differentiating Conduction System Pacing from Myocardial Pacing.

ABSTRACT: During His-Purkinje conduction system (HPS) pacing, it is crucial to confirm capture of the His bundle or left bundle branch versus myocardialonly capture. For this, several methods and criteria for differentiation between non-selective (ns) capture - capture of the HPS and the adjacent myocardium - and myocardial-only capture were developed. HPS capture results in faster and more homogenous depolarisation of the left ventricle than right ventricular septal (RVS) myocardial-only capture. Specifically, the depolarisation of the left ventricle (LV) does not require slow cell-to-cell spread of activation from the right side to the left side of the interventricular septum but begins simultaneously with QRS onset as in native depolarisation. These phenomena greatly influence QRS complex morphol

SUBMITTER: Jastrzebski M 

PROVIDER: S-EPMC8576513 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature