Effective and fast characterization of a complex atrial flutter in patient with previous atrial surgery and ablation procedure: The importance of new ultra–high‐density mapping tools

Figures

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  FIGURE 1. Persistent atrial flutter with concentric coronary sinus activation (375 ms atrial cycle length)

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  FIGURE 2. Lumipoint™ algorithm allows identification of a specific electrogram (EGM) characteristic such as double potentials (yellow circle), visualizing it within thousands of EGMs available. Gray tags identify previous atriotomy points

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  FIGURE 3. Previous complete cavotricuspid‐isthmus isolation

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  FIGURE 4. The radiofrequency ablation points (red tags) performed from the pre‐existent right atriotomy to the tricuspid valve

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  FIGURE 5. The presence of double potentials represented in the orange graph (trend tool)

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  FIGURE 6. Atrial flutter interruption during radiofrequency catheter ablation