The investigators are performing this research study to understand the role of sleep disturbance on the incidence/severity of delirium after surgery. The investigators will study the brain using a polysomnography device (PSG), which records the brain's electrical activity during sleep.
During this study, PSG recordings will be collected and a sleep questionnaire will be administered to participants on the night before surgery in order to establish level of preexisting sleep disturbance. Delirium assessments will be conducted during the postoperative period. On postoperative days 0 and 1, blood will be collected for analysis. Further cognitive, quality of life and pain questionnaires will be administered perioperatively.
Study Type
OBSERVATIONAL
Enrollment
38
PSG data to be collected on the night before surgery to establish level of preexisting sleep disturbance.
Massachusetts General Hospital
Boston, Massachusetts, United States
Association Between Sleep and POD
Duration of sleep in delirious vs non-delirious patients
Time frame: Night before surgery, approximately 13 hours
Burst Suppression Ratio
Burst suppression ratio during cardiopulmonary bypass. EEG recordings from the operating room were collected and analyzed for burst suppression.
Time frame: Length of surgery (2-12 hours)
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