Detecting intra-operative awareness using facial electromyographic monitoring

Author

Watt, Richard C. ; Polson, J. Scott ; Kanemoto, Ansel

Author_Institution

Dept. of Anesthesiology, Arizona Univ., Tucson, AZ, USA

Volume

5

fYear

1996

fDate

31 Oct-3 Nov 1996

Firstpage

1993

Abstract

A reliable anesthetic depth monitor for preventing intra-operative awareness has not yet been devised. In this study, a new monitor, FACE (Patient Comfort, Inc., Nevada City, CA) designed to track EMG activity in the four facial muscle groups (frontalis, corrugator, zygomaticus, and orbicularis oculi) was evaluated under clinical conditions of “adequate” and “inadequate” anesthesia. A derived variable, the awareness index, was found to be statistically significant when comparing awake (aware) and asleep (adequately anesthetized) subjects. Facial EMG monitoring may provide a clinically useful adjunct in the evaluation of anesthetic depth

Keywords

electromyography; patient monitoring; psychology; surgery; adequate anesthesia; anesthetic depth evaluation; asleep; awake; clinically useful adjunct; corrugator; facial muscle groups; frontalis; inadequate anesthesia; orbicularis oculi; statistically significant derived variable; zygomaticus; Anesthesia; Anesthetic drugs; Biomedical monitoring; Cities and towns; Condition monitoring; Electroencephalography; Electromyography; Face detection; Facial muscles; Patient monitoring;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE

Conference_Location

Amsterdam

Print_ISBN

0-7803-3811-1

Type

conf

DOI

10.1109/IEMBS.1996.646356

Filename

646356