Relationship between serum angiopoietin-like 4 levels and recurrence of atrial fibrillation.
OBJECTIVE
To investigate the association between serum angiopoietin-like 4 (ANGPTL4) levels and recurrence of atrial fibrillation (AF) after catheter ablation.


METHODS
This retrospective study recruited patients with AF undergoing catheter ablation and they were divided into two groups (new-onset AF group and recurrent AF group). Demographic, clinical, and laboratory parameters were collected.


RESULTS
A total of 192 patients with AF were included, including 69 patients with recurrence of AF. Serum ANGPTL4 levels were lower in patients with recurrent AF than in those with new-onset AF. Serum ANGPTL4 levels were positively correlated with superoxide dismutase and peroxisome proliferator-activated receptor γ, and negatively correlated with the CHA2DS2-VASC score, left atrial diameter, and levels of brain natriuretic peptide, malondialdehyde, high-sensitivity C-reactive protein, and interleukin-6. The receiver operating characteristic curve showed that the best cut-off for recurrent AF was serum ANGPTL4 levels  < 19.735 ng/mL, with a sensitivity and specificity of 63.9% and 74.5%, respectively. Serum ANGPTL4 levels were significantly associated with recurrence and new onset of AF (odds ratio, 2.241; 95% confidence interval, 1.081-4.648).


CONCLUSIONS
Serum ANGPTL4 levels are lower in patients with recurrent AF than in those with new-onset AF, and are associated with cardiac hypertrophy, oxidative stress, and inflammation.
['Ning|Zhongping|Z|https://orcid.org/0000-0001-5851-1223', 'Li|Xinming|X|', 'Zhu|Xi|X|', 'Luo|Jun|J|', 'Wu|Yingbiao|Y|']
D000075803:Angiopoietin-Like Protein 4 D042682:Angiopoietins D001281:Atrial Fibrillation D017115:Catheter Ablation D006801:Humans D012008:Recurrence D012189:Retrospective Studies D012307:Risk Factors D016896:Treatment Outcome
angiopoietin-like 4 Atrial fibrillation catheter ablation peroxisome proliferator-activated receptor γ cardiac hypertrophy inflammation