- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04062240
Bispectral Index: A Comparison of Bifrontal Montage Agreement
Study Overview
Detailed Description
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Minnesota
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Rochester, Minnesota, United States, 55905
- Mayo Clinic
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
1. Adult patient having elective cardiac surgery
Exclusion Criteria:
- Patient refusal.
- Pediatric patients.
- Emergency procedure.
- Patients with known or suspected carotid or cerebrovascular disease.
- Patients with prior stroke.
- Skin condition or anatomy preventing proper sensor placement.
Study Plan
How is the study designed?
Design Details
- Observational Models: Case-Control
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
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Additional BIS sensor
Many providers caring for cardiovascular surgical patients utilizes BIS monitoring to gauge depth of anesthesia.
The current practice involves placement of the BIS sensor on the patient's forehead per the manufacturer's recommendation on arrival to the operating room.
The intervention in this study will add an additional BIS sensor to the patient's forehead.
After syncing the two monitors for time, and ensuring appropriate skin contact and signal quality of both sensors, BIS monitoring will commence.
BIS readings will be available every 12 seconds during the duration of the study, yielding up to 240 points of comparison per enrolled patient.
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BIS sensors will be labeled L and R. The degree of variability between the concurrent use of the sensors will be assessed .
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
BIS Montage
Time Frame: 10 minutes where both sensors are recording concurrently
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Degree of variability between the values produced by the BIS sensors in a bifrontal montage when monitored simultaneously by use of a Bland-Altmann plot. The average value of each timed pair was plotted against the difference between the pairs. The BIS monitor outputs data on a scale of 0-100 in arbitrary units; 0 = an isoelectric state on EEG, 100 = fully awake patient. BIS values of 40-60 are thought to reduce the chance of patient recall during general anesthesia. For the purpose of this study, a smaller confidence interval is better as it indicates a higher level of agreement between the two BIS sensors. |
10 minutes where both sensors are recording concurrently
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Ketamine
Time Frame: 10 minutes where both sensors are recording concurrently
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Degree to which Ketamine may influence BIS values
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10 minutes where both sensors are recording concurrently
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Collaborators and Investigators
Sponsor
Publications and helpful links
General Publications
- Messner M, Beese U, Romstock J, Dinkel M, Tschaikowsky K. The bispectral index declines during neuromuscular block in fully awake persons. Anesth Analg. 2003 Aug;97(2):488-491. doi: 10.1213/01.ANE.0000072741.78244.C0.
- Schuller PJ, Newell S, Strickland PA, Barry JJ. Response of bispectral index to neuromuscular block in awake volunteers. Br J Anaesth. 2015 Jul;115 Suppl 1:i95-i103. doi: 10.1093/bja/aev072.
- Vivien B, Di Maria S, Ouattara A, Langeron O, Coriat P, Riou B. Overestimation of Bispectral Index in sedated intensive care unit patients revealed by administration of muscle relaxant. Anesthesiology. 2003 Jul;99(1):9-17. doi: 10.1097/00000542-200307000-00006.
Helpful Links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Other Study ID Numbers
- 19-000568
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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