Related Experiment Video
Updated: Mar 16, 2026

Dual-Dye Optical Mapping of Hearts from RyR2R2474S Knock-In Mice of Catecholaminergic Polymorphic Ventricular Tachycardia
Published on: December 22, 2023
Premature ventricular contraction-induced cardiomyopathy: an emerging entity
Cao Thach Tran1, Hugh Calkins1
1a Division of Cardiology , Johns Hopkins University School of Medicine , Baltimore , MD , USA.
Frequent premature ventricular contractions (PVCs) can lead to reversible cardiomyopathy. Both medication and catheter ablation are effective treatments for PVCs, potentially resolving heart muscle dysfunction.
Area of Science:
- Cardiology
- Electrophysiology
Background:
- Growing evidence links frequent premature ventricular contractions (PVCs) to reversible cardiomyopathy over the last 10-15 years.
- Observational studies form the primary basis for current understanding of this association.
Purpose of the Study:
- To review the association between PVCs and cardiomyopathy development.
- To discuss risk factors and treatment modalities for PVC-induced cardiomyopathy.
Main Methods:
- Literature review of published studies on PVCs and cardiomyopathy.
- Analysis of current evidence regarding risk factors and treatments.
Main Results:
- Pharmacological therapy can suppress PVCs and often resolves cardiomyopathy.
- Catheter ablation is an effective treatment, comparing favorably to antiarrhythmic drugs.
Conclusions:
- Frequent PVCs may contribute to heart failure development.
- Physicians should consider PVCs as a potential factor in heart failure patients.
- Successful treatment of PVCs can lead to excellent patient outcomes.
Related Concept Videos
Cardiomyopathy I: Introduction and Classification
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Cardiomyopathy II: Dilated Cardiomyopathy
Cardiomyopathy IV: Restrictive Cardiomyopathy
Mitral Valve Prolapse I: Introduction
Cardiomyopathy V: Interprofessional Care

