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Related Experiment Video

Updated: Jan 1, 2026

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

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Published on: December 11, 2017

Selective left bundle branch pacing for pediatric complete heart block.

Shunmuga Sundaram Ponnusamy¹, Giridhar Muthu¹, Dasarath Bopanna¹

¹Department of Cardiology, Velammal Medical College Hospital and Research Institute, Madurai, India.

Indian Pacing and Electrophysiology Journal

|December 24, 2019

Summary

Selective left bundle branch pacing offers a physiological alternative to traditional right ventricle pacing for bradycardia. This approach synchronizes ventricular contractions, mitigating risks associated with chronic right ventricle pacing.

Keywords:

Congenital CHB LV synchrony Left bundle pacing Left ventricular activation time Physiological pacing

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Area of Science:

Cardiology
Electrophysiology
Medical Devices

Background:

Right ventricle (RV) pacing is the traditional approach for symptomatic bradyarrhythmias.
Chronic RV pacing is linked to deleterious effects on cardiac function.
Physiological pacing strategies aim to improve outcomes by mimicking natural cardiac conduction.

Observation:

A case report details a 13-year-old child with congenital complete heart block.
Selective left bundle branch pacing was successfully performed using a 4.1 F pacing lead.
This technique directly paces the left bundle branch, a component of the heart's natural conduction system.

Findings:

Selective left bundle branch pacing provides a physiological pacing solution.
This method ensures synchronized ventricular contraction, unlike traditional RV pacing.
The procedure was effective in managing congenital complete heart block in the pediatric patient.

Implications:

Left bundle branch pacing represents a promising alternative to RV pacing.
This technique may prevent adverse remodeling and heart failure associated with RV pacing.
Further research into physiological pacing is warranted for managing bradyarrhythmias.