Postoperative Delirium in Patients Undergoing Radical Cystectomy

These cognitive assessments will be utilized during the study to evaluate cognitive levels comparing prior to surgery and post-operatively in order to determine if the subject is delirious. BIS monitoring will be utilized for all subjects.

Subjects will have blood draws at surgical preadmission visit, Day 1, Day 2, and Day 3 post surgery only; one tube containing approximately one teaspoon (5 mL) of blood will be drawn at each visit.

Standardized anesthetic care will be provided as described by the protocol for each subject consented for this trial.