<正> Use of complex intravenous anesthesia ofdiazepam-ketamine is reported. Range cf ages isfrom 6.5 to 65. Blood pressure is normal in 210cases. It is higher than normal in other 5 cases. Within 4 hours, 0.1% ketamine is drippedcontinually. In the initial stage (20-30 min) ofanesthesia the dose is 50-80 μg/kg per min, then30-50μg/kg per min. The total dose is 2-3 mg/