Effect of Auditory Evoked Potential-Guided Anaesthesia on Consumption of Anaesthetics and Early Postoperative Cognitive Dysfunction: a randomised controlled trial
Effect of Auditory Evoked Potential-Guided Anaesthesia on Consumption of Anaesthetics and Early Postoperative Cognitive Dysfunction: a randomised controlled trial
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DOI:
10.1097/eja.0b013e328340dbb9
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发表时间:
2011-03-01
影响因子:
3.6
通讯作者:
Berggren, Lars
中科院分区:
文献类型:
--
作者:
Jildenstal, Pether K.;Hallen, Jan L.;Berggren, Lars
Background Post-operative cognitive dysfunction (POCD) after non-cardiac surgery is a well known problem in some categories of patients. This study aims to evaluate the influence of auditory evoked potential (AEP)-guided anaesthesia on the requirement for anaesthetic drugs and their influence on POCD.Methods Four hundred and fifty patients aged between 18 and 92 years scheduled for ophthalmic surgery under general anaesthesia were assigned randomly to one of two groups. In group A (AEP group), the depth of anaesthesia (DoA) was aimed at an AEP index (AAI) between 15 and 25. In group C (control group), DoA was guided by clinical signs. Hypotension was treated with fluids and vasopressors using a standardised algorithm. A mini-mental test and the Cognitive Failure Questionnaire were used to evaluate cognitive function.Results Anaesthetic drug requirements were significantly lower in group A than in group C: propofol 92.5 +/- 26.5 vs. 103.8 +/- 39.5 mg (P =