His-bundle Pacing to Left Bundle Branch Pacing: Evolution of His-Purkinje Conduction System Pacing
1Geisinger Heart Institute, Geisinger Commonwealth School of Medicine, Wilkes Barre, PA, USA.
Insights
His-bundle pacing (HBP) is a viable alternative to traditional pacing. This report explores pacing the left bundle branch area when standard HBP is not feasible, offering a new option for cardiac resynchronization therapy.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Devices
Background:
- His-bundle pacing (HBP) is an advanced technique for cardiac pacing.
- It is increasingly used for patients needing cardiac resynchronization therapy (CRT), especially those with left bundle branch block (LBBB).
- Standard HBP may face challenges like high pacing thresholds or His bundle disease.
Observation:
- The feasibility of pacing the left bundle branch (LBB) area distal to the conduction block is examined.
- This approach targets specific electrical pathways in the heart's conduction system.
Findings:
- Pacing in the LBB area distal to block presents a potential solution when conventional HBP is unsuccessful.
- This strategy may improve CRT outcomes in select patient groups.
Implications:
- This technique expands the options for His-bundle pacing and CRT.
- It offers a promising alternative for patients with complex conduction abnormalities.
- Further research is warranted to establish the long-term efficacy and safety of this pacing strategy.
Abstract:
His-bundle pacing (HBP) constitutes an excellent alternative to right ventricular pacing. Recently, several studies have reported on the success and efficacy of HBP in patients with left bundle branch block requiring cardiac resynchronization therapy. Nonetheless, HBP may not always be feasible due to high capture thresholds or disease in the distal His bundle. The present report discusses the utility and feasibility of pacing in the left bundle branch area located distal to the site of conduction block.
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