Objective To investigate the effects of volume expansion before induction of anaesthesia on postoperative nausea and vomiting(PONV) in patients undergoing laparoscopic operations.
目的研究麻醉诱导前扩容对腹腔镜手术后恶心呕吐（PONV）发生率的影响。
Objective To observe the changes of auditory evoked potentials index(AEPI)during induction and tracheal intubation and evaluate its effectiveness on anaesthesia depth monitoring.
目的观察听觉诱发电位指数在全麻诱导插管期间的变化，评价其用于临床麻醉深度监测的有效性。
Objective To observe the changes of auditory evoked potentials index(AEPI)during induction and tracheal intubation and evaluate its effectiveness on anaesthesia depth monitoring.
目的观察听觉诱发电位指数在全麻诱导插管期间的变化，评价其用于临床麻醉深度监测的有效性。
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