所有病人未发生呼吸抑制及苏醒延迟、术中及术后无药物过敏及恶心呕吐。

All the patients did not take place respiration inhibition, wakening delay, nausea and vomiting.

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结论：预先镇痛能够使患者的意识恢复程度有一定程度的延长，但不会造成苏醒延迟。

Conclusion:Preemptive analgesia, to some extent, affects the awareness after general anesthesia, but it can't cause awareness delay.

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结论：避免苏醒延迟重在预防。

Conclusion: Prevention of delayed recovery is very important.

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