Abstract:Objective To observe the expression and clinical significance of serum soluble intercellular adhesion molecule-1 (sICAM-1) and vascular endothelial growth factor (VEGF) in patients with vascular dementia (VD) caused by ischemic stroke (IS).Methods The clinical data of 112 IS patients in our hospital from January 2020 to June 2021 were retrospectively analyzed. 31 IS patients with VD were assigned to the VD group, and the remaining 81 patients were assigned to the Non-VD group. In addition, 55 healthy patients who underwent physical examination in this hospital during the same period were selected as the healthy group. The levels of serum sICAM-1 and VEGF in the three groups were compared. The clinical data of the two groups were compared, and the logistic regression analysis method was used to analyze the influencing factors of VD after IS. The ROC curve was drawn to analyze the predictive value of serum sICAM-1 and VEGF alone and in combination on the occurrence of VD after IS.Results Compared with the healthy group, the serum sICAM-1 and VEGF levels in the Non-VD group and the VD group were increased (P < 0.05). Compared with the Non-VD group, the serum sICAM-1 level in the VD group was increased (P < 0.05), of which the serum VEGF level was decreased (P < 0.05). Compared with the Non-VD group, smoking, hypertension, and the NIHSS score in the VD group were increased (P < 0.05). Logistic regression analysis showed that smoking [O^R = 1.881 (95% CI: 1.521, 2.242) ], hypertension [O^R = 7.043 (95% CI: 4.123, 9.963) ], high NIHSS score [O^R = 4.674 (95% CI: 2.379, 6.969) ], frontal cerebral infarction [O^R = 2.396 (95% CI: 1.985, 2.808) ], serum sICAM-1 [O^R = 4.591 (95% CI: 2.379, 6.802) ] and VEGF levels[O^R = 4.889 (95% CI: 2.147, 7.631) ] were all risk factors for VD after IS (P < 0.05). ROC results showed that the best cut-off points for serum sICAM-1 and VEGF to predict the occurrence of VD after IS were 365.41 ng/L and 216.52 pg/mL, respectively. The AUC of VD after the detection of IS was 0.754, 0.793, and 0.793, 0.868.Conclusion In patients with VD caused by IS, there is a high expression of serum sICAM-1 and a low expression of VEGF. The detection of the two alone or in combination has a high predictive value for the occurrence of VD after IS.