Postoperative delirium is a relevant and prevalent entity with an incidence of 70%. It is mainly associated with surgeries in older adult patients, with previous cognitive alterations. As well as long-term surgeries such as hip surgery. POD is characterized by transient cognitive impairment, motor and sleep disturbances. POD is more common in female patients undergoing abdominal surgery, expanding the factors associated with POD so far described in the international and national literature. Postoperative cognitive alterations involve cognitive deficits, an increase in postoperative hospitalization days, high surgical costs and higher mortality. In the appearance of POD, etiopathogenic mechanisms such as alterations in brain perfusion and an inappropriate inflammatory response induced by anesthetics have been described. In addition to Postoperative Cognitive Disorder (PCPO) it is as a con...