Decreased anxiety after catheter ablation for paroxysmal atrial fibrillation is associated with augmented parasympathetic reactivity to stress.

Median HF scores during initial rest ( Figure 2 B, rest) and at task at 1M and 3M after ablation tended to be lower than those before ablation, but the difference did not reach statistical significance (HF at rest: 121.3 [25.1–566.9] ms 2 at Pre, 14.7 [5.6–86.9] ms 2 at 1M, 18.4 [10.4–44.6] ms 2 at 3M; HF at task: 67.3 [24.8-158.9] ms 2 at Pre, 12.3 [5.5-35.1] ms 2 at 1M, 19.5 [8.2-126.5] ms 2 at 3M).

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