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Updated: Feb 11, 2026

Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
Published on: July 20, 2022
Atrial fibrillation in patients with inherited cardiomyopathies
Cynthia Yeung1, Andres Enriquez1, Laiden Suarez-Fuster1
1Kingston General Hospital, Queen's University, Kingston, ON, Canada.
Insights
Atrial fibrillation (AF) complicates inherited cardiomyopathies, worsening outcomes. Managing AF in these patients is challenging due to disease-specific factors and cardiac changes.
Area of Science:
- Cardiology
- Genetics
- Electrophysiology
Background:
- Inherited cardiomyopathies frequently present with or develop atrial fibrillation (AF).
- The unique pathophysiology of each cardiomyopathy influences AF development and maintenance.
- AF signifies a critical disease stage, increasing morbidity and mortality.
Purpose of the Study:
- To review the current understanding of AF in inherited cardiomyopathies.
- To explore the prevalence, pathophysiology, risk factors, and treatment of AF.
- To focus on hypertrophic cardiomyopathy, arrhythmogenic right ventricular dysplasia/cardiomyopathy, familial dilated cardiomyopathy, and left ventricular non-compaction cardiomyopathy.
Main Methods:
- Literature review of current information on AF in inherited cardiomyopathies.
- Analysis of disease-specific defects and cardiac chamber changes.
- Examination of treatment challenges in this patient population.
Main Results:
- AF is a common complication with significant prognostic implications.
- Pathogenesis of AF is multifactorial, involving genetic defects and structural heart changes.
- AF management is complex and requires tailored approaches.
Conclusions:
- AF significantly impacts the clinical course and prognosis of inherited cardiomyopathies.
- Understanding the interplay between cardiomyopathy type and AF is crucial for effective management.
- Further research is needed to optimize AF treatment strategies in these complex patients.
Abstract:
Atrial fibrillation (AF) often complicates the course of inherited cardiomyopathies and, in some cases, may be the presenting feature. Each inherited cardiomyopathy has its own peculiar pathogenetic characteristics that can contribute to the development and maintenance of AF. Atrial fibrillation may occur as a consequence of disease-specific defects, non-specific cardiac chamber changes secondary to the primary illness, or a combination thereof. The presence of AF can denote a turning point in the progression of the disease, promoting clinical deterioration and increasing morbidity and mortality. Furthermore, the management of AF can be particularly challenging in patients with inherited cardiomyopathies. In this article, we review the current information on the prevalence, pathophysiology, risk factors, and treatment of AF in three different inherited cardiomyopathies: hypertrophic cardiomyopathy, arrhythmogenic right ventricular dysplasia/cardiomyopathy, familial dilated cardiomyopathy, and left ventricular non-compaction cardiomyopathy.
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