Background: The aim of the study was to compare the effect of propofol & sevoflurane with respect to hemodynamic changes, recovery profiles and complications in patients scheduled for various elective surgical procedures under general anesthesia. Method: Fifty ASA physical status I-II patients of either sex, aged between 18 and 60 years were randomly divided into two groups to receive either pr...

To evaluate the bispectral index (BIS) as an indicator of anesthetic depth in Thoroughbred horses, BIS values were measured at multiple stages of sevoflurane anesthesia in five horses anesthetized with guaifenesin and thiopental following premedication with xylazine. There was no significant difference between the BIS values recorded at end-tidal sevoflurane concentrations of 2.8% (median 60 ra...

PURPOSE To assess the hemodynamic changes and bispectral index (BIS) following administration of a continuous rate infusion (CRI) of butorphanol in isoflurane-anesthetized calves. METHODS Eight calves weighing 110 ± 12 kg were included in the study. Anesthesia was induced with 5% isoflurane in O2 delivered via face mask and maintained with end-tidal concentration of 1.4%. IPPV was set to a pe...

BACKGROUND Since in caesarean operations skin incision to delivery time is very short, induction agent could be still effective on BIS level till the time of delivery. Therefore this study was designed to analyze the effect on maintaining adequate bispectral index levels till delivery of neonate of propofol and thiopental as an induction agent for caesarean section. METHODS Eighty two patient...

BACKGROUND The present study aimed to evaluate the effects of listening to the mother's heartbeat and womb sounds on the depth of anaesthesia in children. METHODS The present study included 40 children scheduled for minor surgery under general anaesthesia, with an American Society of Anaesthesiologists (ASA) status of 1 to 2. Anaesthesia was induced with sevoflurane, and maintained with sevof...

BACKGROUND Bispectral index (BIS) monitoring reduces the cases of intraoperative awareness. Several factors can alter BIS readings without affecting the depth of anesthesia. We conducted a study to assess the impact of beach chair position (sitting position) on BIS readings. METHODS General anesthesia was administered to 30 patients undergoing arthroscopic shoulder surgery. Patients were kept...

UNLABELLED The patient state index (PSI), a quantitative electroencephalographic index, has been recently introduced into clinical practice as a monitor for assessing consciousness during sedation and general anesthesia. We designed this observational study to compare the sensitivity and specificity of the PSI with that of the bispectral index (BIS) with respect to their ability to predict the ...

BACKGROUND Being awake during anaesthesia is a serious complication. An anaesthetic depth monitor must discriminate in real time between wakefulness and unconsciousness. The present study created a period of wakefulness during propofol-induced hypnosis. Bispectral index (BIS), explicit and implicit memories of the awake period were investigated. METHODS Ten volunteers were studied. The calcul...

We have studied 46 patients to compare the efficacy of the auditory evoked potential (AEP) index, bispectral index (BIS), 95% spectral edge frequency (SEF) and median frequency (MF) in predicting movement in response to insertion of the laryngeal mask airway (LMA). Anaesthesia was induced with target-controlled infusions of propofol and alfentanil. After loss of eyelash reflex and adequate jaw ...