Comparing outcomes after pulmonary vein isolation in patients with systolic and diastolic heart failure.

Similarly, in a retrospective study of the UC San Diego Ablation Registry comparing the recurrence of atrial arrhythmias between patients with HFpEF and those with HFrEF, Aldaas et al 14 reported a trend toward increased recurrence in the HFpEF subgroup, although the difference also did not reach statistical significance.

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