Correlation of the peak oxygen consumption and ventilatory aerobic threshold by cardiopulmonary exercise testing with atrial fibrillation recurrences after ablation in patients with paroxysmal atrial fibrillation.

Background: The cardiopulmonary function is hypothesized to be associated with atrial fibrillation/atrial tachyarrhythmia (AF/AT) recurrence after AF ablation.

Purpose: To clarify the relationship between the cardiopulmonary function after successful ablation and AF/AT recurrence.

Methods: We examined 31 patients with paroxysmal AF who underwent AF ablation.