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Dual-Dye Optical Mapping of Hearts from RyR2R2474S Knock-In Mice of Catecholaminergic Polymorphic Ventricular Tachycardia
Published on: December 22, 2023
Arrhythmogenic right ventricular dysplasia/cardiomyopathy
Hicham Z El Masry1, Anil V Yadav
1Krannert Institute of Cardiology, Indiana University, Room E375, 1801 N. Senate Blvd, Suite E400, Indianapolis, IN 46202-1228, USA.
Insights
Arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) is a rare heart condition causing sudden cardiac death. Recent advances improve understanding of its genetic and diagnostic features, but management remains challenging.
Area of Science:
- Cardiology
- Genetics
- Pathology
Background:
- Arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) is a genetic heart disease characterized by fibrofatty replacement of cardiac myocytes.
- It often leads to ventricular tachycardia and sudden cardiac death, sometimes as the first symptom.
- Recent years have seen significant progress in understanding ARVD/C's genetic basis and diagnostic imaging features.
Purpose of the Study:
- To review the pathological and genetic underpinnings of ARVD/C.
- To highlight key diagnostic features revealed by advanced imaging techniques.
- To discuss current therapeutic challenges in managing ARVD/C patients.
Main Methods:
- Review of current literature on ARVD/C pathology and genetics.
- Analysis of diagnostic imaging characteristics.
- Evaluation of clinical management strategies and outcomes.
Main Results:
- Delineation of the genetic basis of ARVD/C.
- Identification of characteristic diagnostic imaging features.
- Recognition of challenges in genotype-phenotype correlation and sudden cardiac death prediction.
Conclusions:
- Enhanced knowledge of ARVD/C's pathology and genetics aids diagnosis.
- Despite advances, effective management and prediction of sudden cardiac death remain significant challenges.
- Further research is needed to improve genotype-phenotype characterization and therapeutic strategies for ARVD/C.
Abstract:
Arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) is a cardiac disease characterized by fibrofatty replacement of the cardiac myocytes. Patients with ARVD/C frequently present with ventricular tachycardia and many are thought to have sudden cardiac death as the initial manifestation of the disease. Over the past decade, our understanding of the disease has increased dramatically along with delineation of the genetic basis of ARVD/C and characteristic features on diagnostic imaging. The management of patients with ARVD/C remains a challenge, especially in the light of incomplete genotype-phenotype characterization, and poor predictors of sudden cardiac death. In this article, we review the pathologic and genetic basis of ARVD/C, focusing on the diagnostic features and therapeutic challenges emerging with our enhanced knowledge of this rare disease.
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