“…1 Many different terms have been used to describe this syndrome including Intensive Care Unit (ICU) psychosis, acute confusional state, acute brain failure and encephalopathy. 2,3 Delirium has been reported to occur in 20-80% of patients in medical and surgical ICU setting. [4][5][6][7][8][9] It is associated with various adverse outcomes including self extubation, removal of catheter, 6 prolonged hospital stay, 10 increased mortality, 4,11,12 increased health care cost, 13 and long term cognitive impairment.…”