Related Experiment Video
Updated: May 9, 2026

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
Radiofrequency catheter ablation for dyssynchrony-induced dilated cardiomyopathy in an infant
Elena N Kwon1, Kerri A Carter, Ronald J Kanter
1Division of Pediatric Cardiology, Department of Pediatrics, Virginia Commonwealth University, Richmond, Va, USA.
Abstract:
The relationship between accessory pathway-mediated ventricular preexcitation and left ventricular dyssynchrony-induced dysfunction has been described in patients with Wolff-Parkinson-White (WPW) syndrome in the absence of sustained supraventricular tachycardia (SVT). Supraventricular tachycardia in infants is usually successfully suppressed with antiarrhythmic medications, but catheter ablation has ultimately been required as definitive treatment in medically resistant cases. Catheter ablation has not been described in young infants for dyssynchrony-related dilated cardiomyopathy in the absence of SVT. We describe a case of an infant with WPW who did not have sustained supraventricular tachycardia, but who developed rapid progression of ventricular dysfunction after birth. Preexcitation could not be medically suppressed but was successfully ablated. This was followed by complete resolution of ventricular dysfunction within 2 months.
More Related Videos
06:57Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction
Published on: January 31, 2019
08:42Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China
Published on: February 11, 2022
Related Concept Videos
Cardiomyopathy II: Dilated Cardiomyopathy
Disturbances in Heart Rhythm
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
Cardiomyopathy V: Interprofessional Care
Dysrhythmias VI: Management of Dysrhythmias
Cardiomyopathy IV: Restrictive Cardiomyopathy
Cardiomyopathy III: Hypertrophic Cardiomyopathy