With otolaryngeal cancer receiving surgery with general anesthesia\r\n* Please note we are purposefully including patients with higher predisposition to delirium as we are investigating potential preventive strategies for this diagnosis of multiple etiologies; patients at higher risk of delirium (e.g., advanced age, chronic hypertension) will be included in our study; additionally, other common risk factors that exist in this patient population (e.g., alcohol or nicotine use) are thought to contribute to delirium postoperatively Part 1: patients will be excluded if (1) have clinical evidence of cognitive failure as evidenced by Memorial Delirium Assessment Scale score of ? 13 at baseline Delirium (i.e., score >13 on the Memorial Delirium Assessment Scale; range 1-30). Delirium (i.e. Memorial Delirium Rating Scale > 13) PATIENTS: Hyperactive or mixed delirium with RASS >= 1 in the past 24 hours (h) Memorial Delirium Rating Scale > 13 Delirium (i.e., Memorial Delirium Rating Scale > 13) Delirium (i.e. memorial delirium rating scale > 13) Cognitive impairment with a Memorial Delirium Assessment Scale (MDAS) score of 7 or higher or diagnosed with neurocognitive impairment by the treating SCC physician Presence of relatively intact cognition defined by normal memorial delirium assessment scale (< 7/30); sign written informed consent Memorial Delirium Assessment Scale > 13/30 Patients must have no clinical evidence of cognitive impairment as determined by the palliative care physician (Memorial Delirium Assessment Score >= 7) Hyperactive/mixed delirium with RASS >= 2 in the last 24 hours At the patient’s bedside at least 4 hours each day during patient delirium episode Delirium (i.e. memorial delirium rating scale > 13) Delirium (i.e. Memorial delirium rating scale > 13) Delirium (i.e. memorial delirium rating scale > 13) Memorial delirium assessment scale =< 13 Have no clinical evidence of cognitive failure as evidenced by Memorial Delirium Assessment Scale (MDAS) score of =< 13 at baseline Memorial delirium assessment scale =< 13 Altered cognition (as assessed routinely in the Supportive Care Clinic using the Memorial Delirium Assessment Scale [MDAS], with a score of >= 7/30) Patients with normal cognitive status (Memorial Delirium Assessment Scale [MDAS] =< 6/30) who are able to understand the nature and purpose of the study and have the ability to complete the consent process