“…Table 1 summarizes the details of the process of identifying POD. 21,23,25,26,30,33,38,41 male sex, 4,37,39 smoking/tobacco use, 4,12,35 excess alcohol consumption, 12,39,41 advanced cancer stage, 8 history of neurological and psychiatric disorder, 23,30 pre-existing symptoms and comorbidities (cognitive impairment, 23,38,41 and advanced nodal disease 4 ), preoperative factors (higher ASA score 8,23 and higher albumin level 34,35,39 ), prolonged duration of surgery, 4,12,26,38,42 increased length of stay, 23 duration of ventilation, 37 the requirement of tracheostomy, 12,36 fluid imbalance, 12,25,37 longer sedation period, 27 and postoperative complications (pain 23 and insomnia 34,35 ) were reported as risk factors for the incidence of POD.…”