Figure 1. Autonomic alterations pre‐ and post‐pulmonary vein isolation in the study cohort.

Pictured are median and interquartile ranges of the daytime heart rate (A), nighttime heart rate (B), and the SD of the average normal‐to‐normal intervals (C). Date of ablation is noted as time zero on the y‐axis, with a range of −91 days before ablation, and +366 days post‐ablation. SDANN indicates SD of the average normal‐to‐normal intervals.