Valerie Billard

Learn More
BACKGROUND The effects of anesthetic drugs on electroencephalograms (EEG) have been studied to develop the EEG as a measure of anesthetic depth. Bispectral analysis is a new quantitative technique that measures the consistency of the phase and power relationships and returns a single measure, the bispectral index. The purpose of this study was to compare(More)
Spontaneous EEG has been proposed for monitoring depth of anaesthesia and adjusting anesthetic drugs doses. This review describes the main features of spontaneous EEG, the principles of EEG signal analysis used in anaesthesia, and the EEG effects of the different anesthetic drugs in adults and children. Then, the correlations between EEG parameters changes(More)
Anesthesia is a combination of unconsciousness, amnesia, and analgesia, expressed in sleeping patients by limited reaction to noxious stimulations. It is achieved by several classes of drugs, acting mainly on central nervous system. Compared to other therapeutic families, the anesthetic drugs, administered by intravenous or pulmonary route, are quickly(More)
We report a case of a falsely elevated-bispectral index (BIS) during a general anaesthesia combining remifentanil TCI, desflurane and nitrous oxide for an isolated-limb chemotherapy. During surgery, BIS increased and stabilized around 70, with neither residual neuromuscular blockade nor clinical sign of awareness. These high BIS values were attributed to(More)
  • 1