Elevated liver fibrosis-4 index predicts recurrence after catheter ablation for atrial fibrillation in patients with heart failure

JOURNAL OF INTERVENTIONAL CARDIAC ELECTROPHYSIOLOGY(2023)

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摘要
Background The fibrosis-4 (FIB-4) index is a noninvasive scoring system that is used to assess the progression of liver fibrosis. This study aimed to assess whether the FIB-4 index is associated with recurrent atrial fibrillation (AF) after catheter ablation in patients with and without heart failure (HF). Methods We included 1,184 patients who underwent initial AF catheter ablation between 2016 and 2021. The patients were classified into low-risk (< 1.3), intermediate-risk (1.3–2.67), and high-risk (> 2.67) groups based on their FIB-4 indices at baseline. The patients were divided into HF ( n = 552) and non-HF groups ( n = 632); the HF group was further divided into paroxysmal AF (PAF) and non-PAF groups. AF recurrence after catheter ablation was then compared among the groups. Results In the non-HF group, no significant differences in recurrence after ablation were observed between the low-( n = 219), intermediate-( n = 364), and high-risk ( n = 49) groups. In contrast, in the HF group, the intermediate-( n = 341) and high-risk ( n = 112) groups had significantly higher recurrence rates than the low-risk group ( n = 99) (log-rank test, p = 0.005). This association remained significant after multivariate analysis (hazard ratio [HR]:1.374; p = 0.027). The FIB-4 index increased incrementally as the brain natriuretic peptide levels and severity of tricuspid regurgitation increased. The FIB-4 index was an independent predictor of recurrence in the non-PAF HF group (HR:1.498; p = 0.007) but not in the PAF group. Conclusions The FIB-4 index may be a useful predictor of AF recurrence after catheter ablation in patients with HF, particularly in those with non-PAF.
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关键词
Catheter ablation,Atrial fibrillation,Heart failure,Fibrosis-4 index,Non-paroxysmal atrial fibrillation
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