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Updated: Jun 26, 2026

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

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

Published on: December 11, 2017

Twiddling in cardiac resynchronization therapy: 'when length matters'.

Miguel A Arias¹, Alberto Puchol, Marta Pachón

¹Cardiac Arrhythmia and Electrophysiology Unit, Department of Cardiology, Hospital Virgen de la Salud, Planta Semisótano, Avda. Barber 30, 45004 Toledo, Spain. maapalomares@secardiologia.es

Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology

|January 29, 2009

Summary

This summary is machine-generated.

A 75-year-old woman experienced pectoral stimulation after cardiac resynchronization therapy. Lead dislodgement and coiling occurred, but the longer left ventricular lead remained stable.

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Area of Science:

Cardiology
Medical Devices
Implantable Devices

Background:

Cardiac resynchronization therapy (CRT) is a treatment for heart failure.
Successful CRT implantation was performed on a 75-year-old woman.
Pectoral stimulation is a potential complication following device implantation.

Observation:

Two weeks post-implantation, the patient presented with continuous right pectoral stimulation.
Chest radiography revealed retraction and dislodgement of the right atrial and right ventricular leads.
The three leads were observed to be coiled around the device generator.

Findings:

Despite significant lead dislodgement and coiling of the right atrial and ventricular leads, the left ventricular lead remained unaffected.
The left ventricular lead's extended length, intended for implantation maneuverability, contributed to its stability.

Implications:

This case highlights a rare complication of CRT lead dislodgement.
Lead length may play a role in lead stability and resistance to dislodgement.
Further investigation into lead design and implantation techniques may be warranted to prevent such complications.