Comparison of ocular microtremor and bispectral index during sevoflurane anaesthesia †
نویسندگان
چکیده
منابع مشابه
Comparison of Bispectral Index and Entropy values with electroencephalogram during surgical anaesthesia with sevoflurane.
BACKGROUND Concomitantly recorded Bispectral Index® (BIS) and Entropy™ values sometimes show discordant trends during general anaesthesia. Previously, no attempt had been made to discover which EEG characteristics cause discrepancies between BIS and Entropy. We compared BIS and Entropy values, and analysed the changes in the raw EEG signal during surgical anaesthesia with sevoflurane. METHODS...
متن کاملThe performance of Bispectral Index in children during equi-MAC halothane vs. sevoflurane anaesthesia.
BACKGROUND AND OBJECTIVE The reliability of the Bispectral Index for evaluating and monitoring the depth of general anaesthesia in children is not as great as for that in adults. Therefore we analysed Bispectral Index performance in children by comparing changes in Bispectral Index values during a standardized and equipotent anaesthetic regimen using either halothane or sevoflurane for the indu...
متن کاملComparison of 1% and 2% lidocaine epidural anaesthesia combined with sevoflurane general anaesthesia utilizing a constant bispectral index.
BACKGROUND The authors compared the effects of epidural anaesthesia with lidocaine 1% and lidocaine 2% on haemodynamic variables, sevoflurane requirements, and stress hormone responses during surgery under combined epidural/general anaesthesia with bispectral index score (BIS) kept within the range 40-50. METHODS Thirty-three patients undergoing lower abdominal surgery were randomly divided i...
متن کاملEntropy indices vs the bispectral index for estimating nociception during sevoflurane anaesthesia.
BACKGROUND It is now possible to acquire and process raw EEG and frontal EMG signals to produce two spectral-entropy-based indices (response entropy and state entropy) reflective of analgesic and hypnotic levels during general anaesthesia (with the Datex-Ohmeda S/5 Entropy Module, Datex-Ohmeda, Helsinki, Finland). However, there are no data available on the accuracy of the Entropy Module in est...
متن کاملDetermining entropy values equivalent to the bispectral index values during sevoflurane anaesthesia
INTRODUCTION We aimed to identify the entropy levels that would be equivalent to the bispectral index (BIS) levels in sevoflurane anaesthesia in patients who are to undergo elective lumbar disc surgery. MATERIAL AND METHODS Thirty cases in ASA groups I-II who underwent lumbar disc surgery under general anaesthesia were included in our study after obtaining the consent of the patients and Ethi...
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ژورنال
عنوان ژورنال: British Journal of Anaesthesia
سال: 2002
ISSN: 0007-0912
DOI: 10.1093/bja/aef225