All included patients will be followed postoperatively from day 1 to the last day in-hospital, if hospitalized for less than 3 days, or until day 3. The investigator nurse will apply the Nu-DESC daily as a tool to screen delirium. The CAM will be applied to diagnose delirium if the patient is screened with POD. Pain will be evaluated using a standard 100mm VAS for pain (VAS=0 no pain, VAS=100 worst pain). Before hospital discharge all participants will retake the Mini-Cog test and the MMSE.