Persistence of left atrial abnormalities despite left atrial volume normalization after successful ablation of atrial fibrillation.

ABSTRACT:

Background

Left atrial volume index (LAVI) of >34 mL/m² is the cutoff value for identifying an enlarged left atrium. The definition of left atrial (LA) reverse remodeling after atrial fibrillation (AF) ablation is undetermined. We hypothesized that patients with LA dilatation who achieve normal LA volume (LAVI<34 mL/m²) after AF ablation have better long-term outcomes than those who do not. Furthermore, we investigated whether patients with a normal LA volume can also achieve normal LA function with AF ablation.

Methods

We enrolled 140 AF patients with baseline LAVI of ≥34 mL/m², without AF recurrence for 1 year after the initial AF ablation. We acquired conventional and speckle-tracking echocardiographic parameters within 24 hour and at 1 ye

SUBMITTER: Kawakami H 

PROVIDER: S-EPMC8485788 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature