HRS Board Review 2025 New Courses (Reviewers Copy)-Cardiac Conduction System Pacing

Video Transcription

Video Summary

The lecture focused on the cardiac conduction system pacing theory and practice, emphasizing the anatomy and function of the His-Purkinje system. Key segments discussed included His bundle pacing and left bundle branch pacing, touching on how these methods can restore normal conduction and benefit patients with conduction diseases like atrioventricular (AV) nodal block, His bundle block, and bundle branch block.<br /><br />It highlighted the anatomical placement and functional outcomes of His bundle and left bundle branch pacing. His bundle pacing involves positioning electrodes at the His bundle region to enable selective or non-selective cardiac pacing, showing how it can restore conduction, especially in cases of AV nodal block or intrahisian block.<br /><br />There was also a focus on left bundle branch pacing, which acts further down the conduction system and is often aimed at left ventricular myocardial capture. The techniques and outcomes related to corrective pacing in left bundle branch block were detailed, demonstrating the advantages over traditional right ventricular (RV) pacing, particularly for heart failure patients.<br /><br />The lecture further covered clinical outcomes and guidelines for conduction system pacing, showcasing its potential to reduce risks of heart failure hospitalization and pacing-induced cardiomyopathy, and advocated for ongoing clinical trials to substantiate its efficacy further.

Keywords

cardiac conduction system

His-Purkinje system

His bundle pacing

left bundle branch pacing

atrioventricular nodal block

clinical outcomes

heart failure

pacing-induced cardiomyopathy