Bispectral Index and Other Processed Parameters of Electroencephalogram: an Update
نویسندگان
چکیده
منابع مشابه
Bispectral index and other processed parameters of electroencephalogram: an update.
BACKGROUND AND OBJECTIVES The processed analysis of electroencephalogram became extremely important to monitor nervous system, being used to obtain a better anesthetic adequacy. The objective was to conduct a review about each processed parameter, defining its real importance. CONTENT A review was conducted showing mathematical, physical and clinical aspects as well as their correlations and ...
متن کاملUpdate on bispectral index monitoring.
Since 1997, bispectral index (BIS; Aspect Medical Systems Inc., Natick, MA) has been in clinical practice and a wealth of experimental research has accumulated on its use. Originally, the device was approved only for monitoring hypnosis and has now received an indication for reducing the incidence of intraoperative awareness during anesthesia. Numerous studies have documented the ability of BIS...
متن کاملCorrelation and agreement between bispectral index and state entropy of the electroencephalogram during propofol anaesthesia.
BACKGROUND Bispectral index (BIS) and state entropy (SE) monitor hypnosis. We evaluated the correlation and the agreement between those parameters during propofol anaesthesia and laryngoscopy with and without muscle relaxation. METHODS A total of 25 patients were anaesthetized with propofol. At steady state (SS: BIS 40-50), they randomly received rocuronium (R) or saline (S); 3 min thereafter...
متن کاملComparison 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 کاملDetermination of loss of consciousness: a comparison of clinical assessment, bispectral index and electroencephalogram: An observational study.
BACKGROUND Computer-processed algorithms of encephalographic signals are widely used to assess the depth of anaesthesia. However, data indicate that the bispectral index (BIS), a processed electroencephalography monitoring system, may not be reliable for assessing the depth of anaesthesia. OBJECTIVE The aim of this study was to evaluate the ability of the BIS monitoring system to assess chang...
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ژورنال
عنوان ژورنال: Brazilian Journal of Anesthesiology
سال: 2012
ISSN: 0034-7094
DOI: 10.1016/s0034-7094(12)70109-5