This result should be correlated with fMRI in other to confirm whether BDNF could be used in periprocedural monitoring and assessment of functional neurocognitive outcome in carotid stenting. The result went in line with the discussed studies for lower BDNF levels in atherosclerosis and endothelial dysfunction, and low levels in cerebral hypoperfusion [24]. Here, BDNF is linked to atherosclerosis.