Bispectral index, spectral edge frequency 95% and median frequency recorded at varying desflurane concentrations in pigs

Effect of alfaxalone infusion on the electroencephalogram of dogs anaesthetized with halothane

“…Many other studies examined EEG derived variables in different experimental models. For example, two studies examined the effects of different concentrations of isoflurane, sevoflurane and desflurane on bispectral index (BIS), F 50 , F 95 and anaesthetic depth in pigs (Martin‐Cancho et al. 2003, 2006).…”

Performance of Anesthetic Depth Indexes in Rabbits under Propofol Anesthesia

“…Two electrodes (one for each eye) were placed 1 cm caudal to the lateral eye cantus; a central electrode was placed on the midline on the frontal bone 3 cm from each previously applied electrode. This localization was based on previous works for the BIS monitor (Aspect Medical Systems, Newton, MA) in rabbits, 10 which has been determined to give the best quality electroencephalographic signal after testing of different positions in pilot studies with the IoC-View Monitor (Morpheus-Medical, Barcelona, Spain).…”

Effects of Acute Bleeding Followed by Hydroxyethyl Starch 130/0.4 or a Crystalloid on Propofol Concentrations, Cerebral Oxygenation, and Electroencephalographic and Haemodynamic Variables in Pigs

“…The BIS as a monitor of anaesthetic depth in animals has not been validated. Although several studies showed that BIS decreased with increasing anaesthetic doses [56–58]; the index was developed from a database of electroencephalograms recorded in humans and caution is required when interpreting its values in animals. Another important point is the variation in the duration of study periods, as they might have introduced variability in the results.…”