Effects of Intranasal Dexmedetomidine on the Night Before Surgery on Postoperative Delirium in Elderly Patients Undergoing Total Knee/Hip Arthroplasty. A Parallel-Arm, Randomized Controlled, Non-Inferiority Trial
Whether preoperative intranasal dexmedetomidine administration for preventing postoperative delirium is non-inferior to intravenous dexmedetomidine infusion on the operative day before induction for elderly patients undergoing elective knee/hip arthroplasty is evaluated.