Effects of Esketamine Versus Magnesium Sulfate on Emotional State and Postoperative Pain in Patients Undergoing Nasal Endoscopic Surgery

Intravenous esketamine 0.25 mg/kg was administered 10 min before induction of anaesthesia, followed by continuous pumping at 0.25 mg/(kg-h) until the end of the operation.

Intravenous magnesium sulphate 30 mg/kg was administered within 10 min before induction of anaesthesia, followed by continuous pumping at 30 mg/(kg-h) until the end of the operation

Pumping equal volumes of saline over the same time period