Intraoperative Sedatives and Postoperative Deilirium

Propofol is infused continuously via the target-controlled infusion device (Orchestra®, Fresenius vial, Brezins, France), and the effect-site concentration is maintained within 0.5-2.0 μg/ml.

Dexmedetomidine is diluted with 0.9% saline to make a concentration of 4 μg/ml. As a loading dose, 1 μg/kg dexmedetomidine is administered over a 10-min period, which is then administered continuously at 0.1-0.5 μg/kg/h.