Continuous recordings of brain electrical activity were obtained from a group of 176 patients
throughout surgical procedures using general anesthesia. Artifact-free data from the 19 …

Quantitative electroencephalogram (qEEG) monitors are often used to estimate depth of
anesthesia and intraoperative recall during general anesthesia. As with any monitor, the …

Neurological, neurovegetative, and psychic changes following surgery or in tensive care
indicate alterations in cerebral function. When these changes are analyzed exactly, they are …

Methods Six consenting ASA physical status I or II adult patients undergoing elective
operations were studied. The protocol was approved by the local institutional review board …

Significant changes in topographic quantitative EEG (QEEG) features were documented
during induction and emergence from anaesthesia induced by the systematic administration …

Slowing and attenuation of the dominant frequency of the electroencephalogram (EEG) are
changes commonly used to detect cerebral ischemia. To assess the validity of this method …

The goal was to evaluate anesthetic depth in patients by dimensional analysis. Although it
was difficult to obtain clean EEG records from the operating room due to noise of …

Departments of Anesthesiology, Neurology, and Neurosurgery, Mayo Clinic, Rochester,
Minnesota revious studies have documented changes in the electroencephalogram (EEG) …

Univariate descriptors such as the mean frequency and spectral edge frequency have been
proposed for intraoperative representation of the EEG. Such univariate descriptors of the …

IMPLICATIONS: The electroencephalographic-based Entropy module seems to be a cost-
equivalent alternative to the bispectral index (BIS) monitor for assessing the level of …