Introduction
Carotid artery stenosis, depression, stroke, Cerebral oxygen
CAROTID ARTERY STENOSIS, STROKE
Carotid artery stenosis is a major reason of stroke in elderly, accounting for about 20% of all cases and leads to high mortality and heavy economic burden [Cerebral oxygen saturation (SrOPropofol is frequently used intravenously for the induction of sedation during general anesthesia, which is often associated with hemodynamic depression. Previous studies have shown that anesthesia induction with propofol decreased the CBF as CMROHence, we tested the hypothesis that remimazolam will maintain CBF and SrO