All subjects will undergo this ablation, in addition to their standard PVI and Firm ablation for sustained AF rotors.

Atrial Fibrillation

Arrhythmia

Transitional AF rotors will be mapped and ablated as part of this study. All subjects will undergo this ablation after standard PVI and Firm ablation for sustained rotors.

Firm ablation for transitional AF rotors

Sulpizio Cardiovascular Center

Inhibition of Atrial Fibrillation by Elimination of Transitional Mechanisms

In patients presenting for AF ablation, the investigator will prospectively determine whether ablation of AF-initiating sites renders AF more difficult to induce, as measured by the rapid pacing cycle length required to initiate AF during two induction attempts consisting of rapid pacing of 15 seconds duration at decreasing cycle lengths.

atrial premature complexes/fatigue

Inhibition of Atrial Fibrillation by Elimination of Transitional Mechanisms

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