Related Experiment Video
Updated: Jul 14, 2026

Tachycardia-Induced Cardiomyopathy As a Chronic Heart Failure Model in Swine
Published on: February 17, 2018
[Permanent junctional reciprocating tachycardia (PJRT) and dilated cardiomyopathy]
Ivan Malcić1, Bruno Buljević, Wilhelm Kaltenbrunner
1Klinika za pedijatriju, Medicinski fakultet i KBC Zagreb. ivanmalcic@hotmail.com
Abstract:
We present 14-year-old girl with permanent junctional reciprocating tachycardia which was refractory to medicamentous therapy, who also had dilated cardiomyopathy. She underwent successful radiofrequent catheter ablation of accessory pathway after wich the histologic changes in the myocardium were observed in the form of compensatory hypertrophy of cardiac muscle (cardiac remodelling). The question of cause and consequence appeared: whether the arrhythmia is a consequence of dilated cardiomyopathy, or it is tachycardia- induced cardiomyopathy. This particular issue is discussed in this article. Based on the diagnostic procedure and complete recovery of myocardium after catheter ablation of accessory pathway, it is obvious that the tachycardia was due to tachicardiomyopathy, i.e. cardiomyopathy caused by permanent reciprocating junctional tachycardia.
More Related Videos
09:36Dual-Dye Optical Mapping of Hearts from RyR2R2474S Knock-In Mice of Catecholaminergic Polymorphic Ventricular Tachycardia
Published on: December 22, 2023
12:45Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
Published on: December 11, 2017
Related Concept Videos
Cardiomyopathy II: Dilated Cardiomyopathy
Cardiomyopathy I: Introduction and Classification
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Dysrhythmias III: Characteristics of Dysrhythmias
Cardiomyopathy V: Interprofessional Care
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias