• Department of Ophthalmology, The Second Affiliated Hospital of Jiamusi University, Jiamusi 154002, China;
Qi Yanxiu, Email: Mengqi99@sina.com
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Objective To investigate the relationship between stromal cell-derived factor-1 (SDF-1), internal carotid artery stiffness index, and non-arteritic anterior ischemic optic neuropathy (NAION) with macular edema (ME). Methods A retrospective study. A total of 202 patients with NAION diagnosed by ophthalmic examination in Department of Ophthalmology , the Second Affiliated Hospital of Jiamusi University from January 2023 to January 2025 were included in the study. Based on the presence or absence of ME, the patients were divided into the NAION+ME group and the NAION group, with 94 and 108 cases respectively. A prediction model was constructed based on the influencing factors. To comprehensively evaluate the predictive value of SDF-1 and carotid artery stiffness index for NAION with ME, a multidimensional analytical approach was employed. The diagnostic performance of individual and combined markers was assessed by constructing receiver operating characteristic (ROC) curves and calculating the area under the curve (AUC).Multivariate logistic regression analysis was performed to determine their independent predictive value. Stratified subgroup analyses were conducted to explore predictive differences across various populations. Cox proportional hazards regression models were established to evaluate long-term predictive value. Restricted cubic spline (RCS) analysis was applied to reveal potential nonlinear dose-response relationships. Mediation effect models were constructed to analyze the mediating role of carotid artery stiffness index in the association between SDF-1 and NAION with ME. Results In the NAION+ME group, systolic blood pressure (t=6.066), body mass index (t=2.804), disease duration (t=2.552), intraocular pressure (t=2.574), high-density lipoprotein (t=2.729), fasting blood glucose (t=2.022), glycosylated hemoglobin (t=7.235), SDF-1 (t=14.319), and internal carotid artery stiffness index (t=2.633) were higher than those in the NAION group, while diastolic blood pressure was lower (P<0.05). ROC curve analysis showed that the AUC of SDF-1 combined with internal carotid artery stiffness index in predicting the risk of adverse prognosis was 0.894 [95% confidence interval (CI) 0.803-0.945], with a sensitivity of 87.98% and a specificity of 95.69%. Logistic regression analysis demonstrated significant independent correlations between SDF-1 levels (OR=1.682, 95%CI 1.156-1.986), internal carotid artery stiffness index (OR=1.826, 95%CI 1.369-2.648), and the risk of ME in NAION patients (P<0.05). Subgroup analysis revealed that elevated SDF-1 and internal carotid artery stiffness index were associated with a higher risk of NAION with ME (Pfor trend<0.05). RCS analysis demonstrated a nonlinear dose-response relationship between the continuous changes in SDF-1 and internal carotid artery stiffness index and the risk of NAION with ME (P<0.05). Mediation effect model analysis showed that internal carotid artery stiffness index played a mediating role between SDF-1 and the risk of NAION with ME. Conclusions SDF-1 and internal carotid artery stiffness index are independent risk factors for ME in NAION patients. The combined detection of these two indicators holds significant value in predicting disease progression.

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