Dexmedetomidine Versus Morphine and Midazolam in Prevention and Treatment of Delirium After Adult Cardiac Surgery

30 patients received a loading dose of 1 μg/kg dexmedetomidine (Precedex; Hospira, Precedex 200 mcg/2 ml, Hospira. Inc, Lake Forest, USA) diluted in 100 ml 0.9% saline infused over 10 min immediately postoperative, followed by continuous infusion of 0.2- 0.7 μg/kg/h

30 patients received morphine in a dose of 10-50μg/ kg/hr as an analgesic (Morphine Sulphate ampoule; 10 mg/ 1ml, Misr Co.- Egypt) with midazolam in a dose of 0.05mg/kg up to 0.2 mg/kg (Dormicum; Roche; USA; ampoule containing 15 mg/3 ml mixed in sugar-free apple juice limiting the total volume mixed with a double volume of apple juice) repeated as needed.