Presence and stability of rotors in atrial fibrillation

Complexity of Atrial Fibrillation Electrograms Through Nonlinear ...

During AF activity initiated by the ectopic activity, it was observed the generation of two rotors of stable activity during 5 s of simulation. One was located ...

Understanding and treating atrial fibrillation - YouTube

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Stability of Conduction Patterns in Persistent Atrial Fibrillation

Conduction pattern stability was assessed using Mean Phase. Coherence (MPC) of atrial electrograms. Stability was defined as the presence of several consecutive ...

Temporal stability of rotors and atrial activation patterns in persistent ...

Results: The dominant activation pattern was simultane- ous presence of multiple narrow wavefronts (26%). ... Temporal stability of the atrial fibrillation cycle ...

Dynamical anchoring of distant arrhythmia sources by fibrotic ...

Rotors are functional reentry sources identified in clinically relevant cardiac arrhythmias, such as ventricular and atrial fibrillation.

Cardiac fibrillation: From ion channels to rotors in the human heart

Mother rotors and fibrillatory conduction: a mechanism of atrial fibrillation. ... Presence of left-to-right atrial frequency gradient in paroxysmal but not ...

PIIS2214027121001172.pdf - Erasmus University Rotterdam

KEYWORDS Atrial fibrillation; Atrial fibrillation source; Catheter ablation; ... Presence and stability of rotors in atrial fibrillation: evidence and.

Atrial Fibrillation - Cleveland Clinic Center for Continuing Education

Atrial fibrillation rotors represent an emerging concept as a sustaining mechanism for AF involving spiral waves detected by spectral analysis of dominant ...

Clinical Arrhythmias - Radcliffe Cardiology

Computational AF mapping demonstrated the presence of rotors ... fibrillation: stable atrial fibrillation rotors and focal sources relate poorly to fractionated ...

Attraction of Rotors to the Pulmonary Veins in Paroxysmal Atrial ...

Maintenance of paroxysmal atrial fibrillation (AF) by fast rotors in the left atrium (LA) or at the pulmonary veins (PVs) is not fully ...

Beyond pulmonary vein isolation for persistent atrial fibrillation

... rotor modulation (FIRM) technology[29] suggested the presence of ... Stability of rotors and focal sources for human atrial fibrillation ...

Highest Dominant Frequency and Rotor Positions are Stable ...

However, the propagation patterns that result from the inverse problem resolution during atrial fibrillation (AF) and serve as a basis for rotor identification ...

Rotor mapping and ablation to treat atrial fibrillation - Academia.edu

This approach provides evidence that the mechanisms sustaining human AF are deterministic, largely due to stable electrical rotors and focal sources in either ...

Abbott Announces Positive Clinical Results with FIRM-Guided Rotor ...

During a FIRM-guided rotor ablation procedure for atrial fibrillation, physicians use Abbott's proprietary technology to identify and visualize ...

Ionic and substrate mechanisms of atrial fibrillation - SciELO México

Further optical mapping studies in isolated normal sheep hearts in the presence of acetylcholine (ACh) reveals that rotors localized to the left atrium (LA) ...

Targeting the Substrate in Ablation of Persistent Atrial Fibrillation

Evaluation of the activation patterns of atria in AF has been another avenue of research. Focal Impulse and Rotor Modulation (FIRM) mapping and forms of Body ...

Rotors and Turbulence in Ventricular Fibrillation - Role of Inward ...

Rotors and Ventricular Fibrillation in the Human Heart ... During VF, there may be a wide spectrum of rotor behaviors. ... Under appropriate conditions, even in the ...

Cardiac fibrillation: From ion channels to rotors in the human heart

Importantly, although human data support the idea that rotors are a crucial mechanism for fibrillation maintenance in both atria and ventricles, ...

Ablating atrial fibrillation_ A translational science perspective for ...

A stable or meandering rotor with peripheral wavebreak is equivalent to mother rotor fibrillation, whereas spiral wave breakup is equivalent to ...

The Spatiotemporal Stability of Dominant Frequency Sites in ... - PLOS

We previously reported that stable rotors were observed in in-silico human atrial fibrillation (AF) models, and were well represented by dominant frequency (DF) ...