Abbreviations
Index of consciousnesselectroencephalogrampostoperative cognitive dysfunctionenhanced recovery after surgerybispectral indexAmerican Society of AnesthesiologistsMini-Mental State ExaminationMontreal Cognitive Assessmentend-tidal carbon dioxidepulse pressure variationpatient-controlled intravenous analgesiaC-reactive proteinglial fibrillary acidic proteinbody mass indexcentral nervous systemslow response systeminsulin resistance