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Atrial fibrillation (AF) is the most common cardiac arrhythmia. The Maze III ablation pattern consists of creating lines of conduction block in both atria to prevent multiple wavelets. In this work we simulated the Maze III pattern in a tridimensional (3D) model of human remodeling atria and evaluated its efficacy for termination of an AF episode. To carry out the study, an episode of AF was generated...
Atrial tachycardias are the most common cardiac arrhythmias in clinical practice, which induce changes in atrial properties that help to perpetuate them. These changes are called “atrial remodeling”. Recent studies have shown that rapid ectopic activity principally on the pulmonary veins can trigger reentrant mechanisms and lead to atrial tachycardias. However, the influences of ectopic foci location,...
Structural remodeling plays an important role in the genesis and maintenance of atrial arrhythmias. In this work, the influence of atrial dilatation on the generation of reentrant activity trigger by an ectopic beat applied at different locations of the left atrium was studied. We have developed two 3D models of human atria: a model with electrical remodeling only, and a model with electrical and...
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