Why the study?
Does the presence of non-pulmonary vein foci increase the risk of atrial fibrillation recurrence in patients undergoing a second catheter ablation for paroxysmal atrial fibrillation?
Does the presence of non-pulmonary vein foci increase the risk of atrial fibrillation recurrence in patients undergoing a second catheter ablation for paroxysmal atrial fibrillation?
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The presence of non-pulmonary vein foci, particularly when unmappable, is a significant predictor of atrial fibrillation recurrence following a second catheter ablation procedure.
Nearly half of the patients had non-PV AF foci at the second CA session. AF recurred after the second CA session in approximately 30%, with most recurrences happening within 1 year. The presence of non-PV AF foci significantly increased the AF recurrence risk after a second CA. When non-PV AF foci were unmappable, the AF recurrence rate was extremely high.
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Takigawa et al. (2015) studied this question.
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