Preoperative Sleep Disorder

Delirium is a common consequence of cardiac surgery and associates with poor outcomes. Multiple causes can trigger delirium occurence, and it has been hypothesised that sleep disturbances can be one of them. Dexmedetomidine may be effective in reducing delirium. The aim of this study was to demonstrate preoperative dexmedetomidine nasal spray in cardiac surgery patients can reduce postoperative delirium by improving preoperative sleep.