Advances in electroencephalogram (EEG) processing have produced new interest in measuring anesthesia using the EEG. There are a number of EEG-based anesthesia 'depth' monitors now available and their use in pediatric anesthesia is increasing. Although these monitors have been extensively studied in adults, there are relatively few studies examining their validity or use in children. To some ext...

BACKGROUND Induction of anesthesia is the most crucial period of general anesthesia. Inhalational induction is the most commonly used technique in pediatric anesthesia. Tracheal intubation can be done after reaching the deep levels of anesthesia. The depth of anesthesia is often difficult to be judged. Bispectral index is a measure of the effects of anesthesia on brain. This study was designed ...

In this paper, the ratio of powers in the frequency bands of 2 β and  waves in EEG signals (termed as the 2 β /θ-ratio) was introduced as a potential enhancement in measuring anesthesia depth. The 2 β /θ-ratio was compared to the relative  -ratio which had been commercially used in the BIS monitor. Sensitivity and reliability of the 2 β /θ-ratio and EEG measurement locations were analyzed for...

In this paper, the ratio of powers in the frequency bands of 2 β and  waves in EEG signals (termed as the 2 β /θ-ratio) was introduced as a potential enhancement in measuring anesthesia depth. The 2 β /θ-ratio was compared to the relative  -ratio which had been commercially used in the BIS monitor. Sensitivity and reliability of the 2 β /θ-ratio and EEG measurement locations were analyzed for...

Introduction It has been demonstrated in our previous study [1] that spontaneous cerebral blood flow (CBF) and electroencephalography (EEG) simultaneously recorded from rat primary somatosensory cortex are tightly coupled under burst-suppression anesthesia induced by isoflurane. On the other hand, other studies [2-3] have reported that the rat brain can exhibit distinct hemodynamic responses to...

background: this study was planned to determine the relationship between bispectoral index (bis) during dental treatment and recovery conditions in children undergoing two regimes of anesthesia of propofol and isofl urane. materials and methods: in this single-blind clinical trial study, 57 4-7-year-old healthy children who had been referred for dental treatment under general anesthesia between...

The aim of this study was to evaluate the role of depth of anesthesia on POCD after major ENT surgery and to assess changes in postoperative inflammatory markers in patients undergoing major ENT surgery. Thirty two patients aged 40 to 94 yrs, scheduled for surgery under general anesthesia were randomly assigned to one of two groups. In group A (AEP group) depth of anesthesia (DOA) was measured ...

Awareness during general anesthesia for its serious psychological effects on patients and some juristically problems for anesthetists has been an important challenge during past decades. Monitoring depth of anesthesia is a fundamental solution to this problem. The induction of anesthesia alters frequency and mean of amplitudes of the electroencephalogram (EEG), and its phase couplings. We analy...