The wake groups were taught the word pairings at 9 a. m. and then tested on them at 9 p. m. after 12 hours awake.

醒着的组在上午9点教给他们这些词，持续12个小时的清醒状态后，而后在晚上9点对他们进行测试。

Half the group was allowed to take a nap from 2 p. m. to 3:40 p. m., while the rest stayed awake throughout the day.

一半的参与者被允许在下午2点到3：40睡个午觉，另一半人整天保持清醒。

Postoperative awake and extubated time faster than venous general anesthesia group, intraoperative awareness rate lowest pain(P<0.01).

术后清醒和拔管时间快于静脉全身麻醉组，术中疼痛知晓发生率最低（P<0.01）。