Journal of Southern Medical University ›› 2025, Vol. 45 ›› Issue (8): 1663-1671.doi: 10.12122/j.issn.1673-4254.2025.08.11

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Elevated advanced glycation endproducts is a risk factor for stenosis after primary arteriovenous fistula surgery

Tianhong LI1,2(), Xinfang QIN1, Lili WEI1, Huixin BI1,2()   

  1. 1.Department of Nephrology, First Affiliated Hospital of Guilin Medical University, Guilin 541000, China
    2.Department of Nephrology, Fifth Affiliated Hospital of Southern Medical University, Guangzhou 510999, China
  • Received:2024-12-24 Online:2025-08-20 Published:2025-09-05
  • Contact: Huixin BI E-mail:1216657063@qq.com;26988436@qq.com
  • Supported by:
    National Natural Science Foundation of China(81960679)

Abstract:

Objective To investigate the effect of serum advanced glycation endproducts (AGEs) on stenosis after first autologous arteriovenous fistula (AVF) in patients with end-stage renal disease (ESRD). Methods Patients with ESRD undergoing standard native arteriovenous fistula (AVF) for the first time in the Department of Nephrology, Affiliated Hospital of Guilin Medical University from February to June 2022 were prospectively enrolled. The preoperative general data, clinical examination results and ultrasound data of the operated limbs were collected. The patients with and without stenosis within 2 months after the operation were compared for preoperative serum AGEs levels detected using ELISA and the clinical parameters. Logistic regression analysis was used to analyze the independent risk factors of AVF stenosis, and the sensitivity and specificity of AGEs for predicting postoperative stenosis were analyzed using receiver-operating characteristic (ROC) curve. Results Of the 94 patients enrolled, 34 had postoperative arteriovenous stenosis and 60 had no stenosis. The number of diabetic patients differed significantly between stenosis group and non-stenosis group (P<0.001). Serum AGEs levels, which were negatively correlated with serum phosphorus level (P<0.05), were significantly higher in stenosis group than in non-stenosis group (Z=-2.837, P=0.005). Serum AGE level was an independent risk factor for postoperative stenosis after AVF (OR=1.251, 95% CI:1.096-1.423, P<0.001). For predicting AVF stenosis, the area under the ROC curve (AUC) of AGEs was 0.677 (P=0.007, 95% CI: 0.572-0.770), with a specificity of 90.00% and a sensitivity of 52.94% at the optimal cut-off value of 8.43 µg/mL; AGEs combined with fibrinogen had an AUC of 0.763 (P<0.001, 95% CI: 0.664-0.844), with a specificity of 73.33% and a sensitivity of 70.59% at the optimal cut-off value of 0.30. Conclusions Elevated serum AGEs level is an independent risk factor for postoperative AVF stenosis, and its combination with fibrinogen has a better efficacy for predicting postoperative AVF stenosis.

Key words: advanced glycation end products, arteriovenous fistula stenosis, end-stage renal disease, fibrinogen