Abstract:Objective To investigate the relationship between serum microRNA-27a (miR-27a) and nuclear factor-kappa B (NF-κB) and the therapeutic efficacy of endovascular embolization in patients with aneurysmal subarachnoid hemorrhage.Methods A retrospective analysis was conducted on medical records of 162 patients with aneurysmal subarachnoid hemorrhage who underwent endovascular treatment in Zaozhuang Municipal Hospital from April 2021 to April 2023. Based on the efficacy assessment results conducted two weeks after the operation, patients were divided into effective and ineffective groups. Serum levels of miR-27a and NF-κB were compared between the two groups to screen factors affecting the therapeutic efficacy of endovascular embolization in patients with aneurysmal subarachnoid hemorrhage. The value of serum miR-27a and NF-κB for assessing the therapeutic efficacy of endovascular embolization in patients with aneurysmal subarachnoid hemorrhage was analyzed.Results Among the 162 patients with aneurysmal subarachnoid hemorrhage, 62 cases showed significant improvement, 78 cases were effective, and 22 cases were ineffective. The two groups of patients were compared in terms of sex composition, age, body mass index, family history of hypertension, aneurysm diameter, aneurysm neck width, aneurysm location, time from onset to endovascular embolization, Hunt-Hess grade, and levels of vascular endothelial growth factor, nitric oxide synthase, and endothelin-1, and they were not different between the groups based on the χ2/ t test (P > 0.05). In the ineffective group, the proportions of patients with Fisher grades Ⅲ to Ⅳ on brain CT and relative mRNA expressions of NF-κB and serum miR-27a were higher than those in the effective group (P < 0.05). The multivariable Logistic regression analysis demonstrated that the Fisher grade on brain CT [O^R = 4.513 (95% CI: 1.801, 11.304)], NF-κB mRNA levels [O^R = 4.406 (95% CI: 1.759, 11.036) ], and serum miR-27a levels [O^R = 4.491 (95% CI: 1.793, 11.248) ] were factors affecting ineffective endovascular embolization therapy in patients with aneurysmal subarachnoid hemorrhage (P < 0.05). The receiver operating characteristic (ROC) curve analysis showed that the sensitivities of serum miR-27a, NF-κB, and their combination in predicting the efficacy of endovascular embolization therapy in patients with aneurysmal subarachnoid hemorrhage were 0.679 (95% CI: 0.541, 0.759), 0.603 (95% CI: 0.529, 0.714), and 0.725 (95% CI: 0.641, 0.816), with the specificities being 0.771 (95% CI: 0.681, 0.863), 0.842 (95% CI: 0.752, 0.937), and 0.961 (95% CI: 0.814, 0.998), and the areas under the curves being 0.746 (95% CI: 0.631, 0.854), 0.735 (95% CI: 0.629, 0.851), 0.851 (95% CI: 0.772, 0.958), respectively.Conclusions The abnormal expressions of serum miR-27a and NF-κB are associated with the therapeutic response of patients with aneurysmal subarachnoid hemorrhage to endovascular embolization. The combined detection of serum miR-27a and NF-κB can enhance the predictive value for the therapeutic efficacy of endovascular embolization in patients with aneurysmal subarachnoid hemorrhage.