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Catheter ablation in patients with atrial fibrillation and dilated cardiomyopathy

Frontiers in Cardiovascular Medicine

Introduction Catheter ablation is an effective and safe strategy for treating atrial fibrillation patients. Nevertheless, studies on the long-term outcomes of catheter ablation in patients with dilated cardiomyopathy are limited. Among the catheter ablation group, 58.7% ( n  = 27) had persistent atrial fibrillation.

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Bi-atrial arrhythmogenic substrate in patients with hypertrophic obstructive cardiomyopathy

HeartRhythm

Atrial fibrillation (AF) in patients with hypertrophic obstructive cardiomyopathy (HOCM) may be caused by a primary atrial myopathy. Whether HOCM-related atrial myopathy affects mainly electrophysiological properties of the left atrium (LA) or also the right atrium (RA) has never been investigated.

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Assessing the impact of atrial fibrillation on symptoms and quality of life in hypertrophic cardiomyopathy

Journal of Cardiovascular Electrophysiology

Abstract Introduction In hypertrophic cardiomyopathy (HCM), atrial fibrillation (AF) has historically been regarded to have a deleterious impact on clinical course, strongly associated with progressive heart failure (HF) symptoms. Results Among the 218 patients, 50 (23%) had a history of AF and comprise the primary study cohort.

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Prognostic Value of Low Voltage Area Burden in Atrial Fibrillation

HeartRhythm

The EHRA/HRS/APHRS/SOLAECE Expert Consensus on Atrial Cardiomyopathies published in 2017 defined atrial cardiomyopathy as β€œany complex of structural, architectural, contractile, or electrophysiological changes affecting the atria.”1

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Genetic Atrial Cardiomyopathies: Common Features, Specific Differences, and Broader Relevance to Understanding Atrial Cardiomyopathy

Circulation: Arrhythmia and Electrophysiology

Circulation: Arrhythmia and Electrophysiology, Ahead of Print. Atrial cardiomyopathy is a condition that causes electrical and contractile dysfunction of the atria, often along with structural and functional changes.

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Hypertrophic Cardiomyopathy and Ventricular Preexcitation in the Young: Cause and Accessory Pathway Characteristics

Circulation: Arrhythmia and Electrophysiology

Circulation: Arrhythmia and Electrophysiology, Volume 16, Issue 11 , Page e012191, November 1, 2023. BACKGROUND:The cause of hypertrophic cardiomyopathy (HCM) in the young is highly varied. Atrioventricular AP (true AP) were distinguished from fasciculoventricular fibers (FVF) using standard invasive electrophysiology study criteria.

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Epicardial arrhythmogenic substrate in long QT syndrome

HeartRhythm

The advent of transseptal puncture has enabled the study of atrial fibrillation mechanisms, while epicardial access has enabled exploration of the epicardium in ventricular arrhythmias (ventricular tachycardia/ventricular fibrillation [VF]).1,2