Intraoperative burst suppression is associated with postoperative delirium following cardiac surgery: a prospective, observational study.

Background: Postoperative delirium (POD) occurs frequently after cardiac surgery and is associated with increased morbidity and mortality. We analysed whether perioperative bilateral BIS monitoring may detect abnormalities before the onset of POD in cardiac surgery patients.

Methods: In a prospective observational study, 81 patients undergoing cardiac surgery were included.