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Association of left atrial epicardial adipose tissue with electrogram bipolar voltage and fractionation: Electrophysiologic substrates for atrial fibrillation.
BACKGROUND Epicardial adipose tissue (EAdT) is metabolically active and likely contributes to atrial fibrillation (AF) through the release of inflammatory cytokines into the myocardium or through its… Expand
Multimodal Examination of Atrial Fibrillation Substrate: Correlation of Left Atrial Bipolar Voltage Using Multi-Electrode Fast Automated Mapping, Point-by-Point Mapping, and Magnetic Resonance Image…
Background Bipolar voltage mapping, as part of atrial fibrillation (AF) ablation, is traditionally performed in a point-by-point (PBP) approach using single-tip ablation catheters. Alternative… Expand
Increased rates of atrial fibrillation recurrence following pulmonary vein isolation in overweight and obese patients
- B. Sivasambu, M. Balouch, +8 authors D. Spragg
- Journal of cardiovascular electrophysiology
- 1 February 2018
Catheter ablation is common for patients with symptomatic, drug‐refractory atrial fibrillation (AF). Obesity is a known risk factor for incident AF. The impact of obesity on AF ablation outcomes is… Expand
Visualization of acute edema in the left atrial myocardium after radiofrequency ablation: Application of a novel high-resolution 3-dimensional magnetic resonance imaging sequence.
BACKGROUND Ablation-induced left atrial (LA) edema may result in procedural failure due to reversible pulmonary vein isolation. Conventional T2-weighted magnetic resonance edema imaging is limited by… Expand
Impact of rotor temperospatial stability on acute and one‐year atrial fibrillation ablation outcomes
The utility of rotor ablation using commercially available systems as an adjunct to pulmonary vein isolation (PVI) is controversial. Variable results may stem from heterogeneous practice patterns. We… Expand
Correlation of right ventricular multielectrode endocardial unipolar mapping and epicardial scar
- Jonathan Chrispin, A. Keramati, +5 authors H. Tandri
- Pacing and clinical electrophysiology : PACE
- 1 April 2018
Prior studies identified a relationship between epicardial bipolar and endocardial unipolar voltage. Whether the relationship is valid with smaller multielectrode mapping catheters has not been… Expand
Intra-Atrial Dyssynchrony During Sinus Rhythm Predicts Recurrence After the First Catheter Ablation for Atrial Fibrillation.
- Luisa A Ciuffo, Susumu Tao, +9 authors H. Ashikaga
- JACC. Cardiovascular imaging
- 17 January 2018
OBJECTIVES The purpose of this study was to evaluate the usefulness of intra-atrial dyssynchrony as a marker of underlying left atrial (LA) remodeling to predict recurrence after the first atrial… Expand
Standard Ablation Versus Magnetic Resonance Imaging–Guided Ablation in the Treatment of Ventricular Tachycardia
- Tarek Zghaib, E. G. Ipek, +11 authors S. Nazarian
- Circulation. Arrhythmia and electrophysiology
Radiofrequency ablation is an effective treatment strategy for ischemic and nonischemic cardiomyopathy-related ventricular tachycardia (VT). The role of substrate-guided ablation, performed using… Expand
Trends in Transesophageal Echocardiography Use, Findings, and Clinical Outcomes in the Era of Minimally Interrupted Anticoagulation for Atrial Fibrillation Ablation.
OBJECTIVES This study assessed trends in transesophageal echocardiography (TEE) use, rate of left atrial appendage (LAA) thrombus detection, and incidence of periprocedural cerebrovascular accident… Expand
The Extent of Left Atrial Low-Voltage Areas Included in Pulmonary Vein Isolation Is Associated With Freedom from Recurrent Atrial Arrhythmia.
BACKGROUND The extent of left atrial (LA) baseline low-voltage areas (LVA-B), which may be a surrogate for fibrosis, is associated with recurrent atrial fibrillation (AF) after ablation. This study… Expand