Results The combination of ketamine hydrocholoride, sumianxin and diazepam in a ratio of 4:2:1 was found to be an optimal intravenous anesthetic agent.

• 结果将盐酸氯胺酮、速眠新和安定三者以4:2:1（体积比）的比例混合进行静脉复合麻醉，麻醉效果最为理想；