Unipolar-voltage-based evaluation of left atrial tissue properties and ablation outcome in patients with atrial fibrillation.

ABSTRACT:

Aims

The relationship between local unipolar voltage (UV) in the pulmonary vein (PV)-ostia and left atrial wall thickness (LAWT) and the utility of these parameters as indices of outcome after atrial fibrillation (AF) ablation remain unclear.

Methods and results

Two-hundred seventy-two AF patients who underwent AF ablation were enrolled. Unipolar voltage of PV-ostia was measured using a CARTO system, and LAWT was measured using computed tomography. The primary endpoint was atrial tachyarrhythmia (ATA) recurrence including AF. The ATA recurrence was documented in 74 patients (ATA-Rec group). The UV and LAWT of the bilateral superior PV roof to posterior and around the right-inferior PV in the ATA-Rec group were significantly greater than in patients without ATA recurrence (AT

SUBMITTER: Kamioka M 

PROVIDER: S-EPMC10422692 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature