Title :
Clinical applications of combined EEG/EMG monitoring
Author :
Edmonds, Harvey L., Jr. ; Couture, Lawrence J. ; Paloheimo, Markku P.
Author_Institution :
Dept. of Anesthesiology, Louisville Univ., KY, USA
Abstract :
The mean integrated amplitude of both EEG and upper facial EMG activities was monitored during varied vigilance states including wakefulness, sleep, anesthesia and coma. Combined monitoring provided more useful information than that available from EEG alone. Drug-free wakefulness was consistently associated with high-amplitude (>10 mcV) EMG and low-amplitude (<20 mcV) EEG activity. Diminished vigilance was reliably indicated by diminished EMG amplitude. In contrast, decreased vigilance was not necessarily manifested by increased EEG amplitude. Thus, combined EEG/EMG monitoring seems to enhance the information content of biopotentials derived from scalp recordings.<>
Keywords :
bioelectric potentials; electroencephalography; muscle; patient monitoring; anesthesia; biopotentials information content; clinical technique; coma; combined EEG/EMG monitoring; drug-free wakefulness; mean integrated amplitude; scalp recordings; sleep; upper facial EMG; vigilance;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.94975
