BACKGROUND Bispectral index has been introduced to provide optimal level of anesthesia. However, Bispectral index monitoring may not be cost effective in a relatively short procedures due to the high costs of the electrode. The authors conducted the present study to compare the feasibility of commercially available electrocardiogram (ECG) electrodes instead of the Bispectral index (BIS) monitor...

Editor’s key points † The influence of electromyographic (EMG) activity neuromuscular block (NMB) on bispectral index (BIS) is controversial. † BIS was measured before and after reversal of NMB with sugammadex or neostigmine. † BIS increased after both agents only in patients with EMG activity. † This effect should be taken into account when using BIS. Background. Sugammadex is a modified g-cyc...

UNLABELLED Bispectral index (BIS) is an electroencephalographic variable promoted for measuring depth of anesthesia. Electromyographic activity influences surface electroencephalography and the calculation of BIS. In this study, we sought to determine the effect of spontaneous electromyographic activity on BIS. BIS was monitored in three volunteers by using an Aspect A-1000 monitor. The experim...

THE bispectral index (BIS, Aspect Medical Systems, Framingham, MA) is a complex electroencephalographic (EEG) parameter that integrates several disparate descriptors of the EEG into a single variable and correlates behavioral assessments of sedation and hypnosis. We report two cases in which the bispectral index failed to measure depth of anesthesia but instead was a measure of electromyographi...

normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 background : it has been shown that bispectral index (bis) may reduce during spinal anesthesia. the aim of this study was comparing bis scores during spinal anesthesia using hyperbaric bupivacaine alone or with intrathecal or intravenous fentanyl for cesarean section. methods : in this double-blind randomized controlled cl...

EDITOR: Several authors have reported sudden increases of the bispectral index values during different procedures such as endoscopic shoulder surgery [1], deep hypothermic circulatory arrest [2] or after using an upper-body blanket for warming [3]. In addition, spurious bispectral index values can be observed when the electromyogram activity of the bispectral index monitor reaches a value of 50...

BACKGROUND Publications on the use of the bispectral index for sedation monitoring in the intensive care unit are increasing. However, few studies have involved correlation of bispectral index with serum drug concentrations. OBJECTIVES To assess the degree of correlation between bispectral index values, scores on the Sedation-Agitation Scale, and steady-state serum concentrations of lorazepam...