A Study on the Relationship Between Individualized Low Voltage Regions in Left Atrium and the Mechanism of Atrial Fibrillation in Persistent Atrial Fibrillation Under Ultra-High-Resolution Mapping

In the non-pulmonary vein ablation group, pulmonary vein isolation was not allowed, but the left atrial low-voltage area was treated first, and then the ablation route that terminated the reentry ring was treated.

In the group treated with only pulmonary vein ablation route, only potential isolation of pulmonary vein was performed, and bidirectional block was the end point.