Sedation
Conditions
Keywords
patients having outpatient surgery with sedation, patients having procedures with sedation
Brief summary
The purpose of this study is to determine if the SNAP II electroencephalography (EEG) monitor accurately reflects changes in sedation level in outpatients undergoing surgery or procedures with sedation.
Interventions
OTHERSNAP II EEG System
A portable EEG monitor (SNAP II EEG System, Everest -St. Louis) is unique in that it monitors both low frequency EEG signals (1-40 Hz), which are typically used, and high frequency EEG signals (80-420 Hz), which are not usually used, and calculates a derived EEG parameter (the SNAP Index). The SNAP Index ranges from 100 (completely awake) to 0 (no brain activity) and has been shown in a few studies to correlate with increasing sedation and loss of consciousness in human volunteers and patients receiving general anesthesia during surgery.
Sponsors
University of Wisconsin, Madison
Study design
Observational model
ECOLOGIC_OR_COMMUNITY
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* American Society of Anesthesiologists (ASA) I, II or III physical status
Exclusion criteria
* Use of inhalation general anesthesia * ASA IV physical status
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Assessment of participant heterogeneity between SNAP Index and OASS Score. | up to 1 day post op | The SNAP Index is a derived EEG (electroencephalogram) parameter (from the SNAP II EEG System) ranging from 100 (completely awake) to 0 (no brain activity). The Observer's Assessment of Alertness/Sedation Score (OASS) is a score derived from motor and sensory functions between 0 and 5 where 0 is unresponsive and 5 is awake. |
Countries
United States
Outcome results
None listed