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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05584904
Other study ID # AUSLNordOvest
Secondary ID
Status Completed
Phase
First received
Last updated
Start date January 13, 2023
Est. completion date January 20, 2023

Study information

Verified date February 2023
Source Azienda USL Toscana Nord Ovest
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

We asked to a staff of digestive endoscopy and of the operating room to interpret the EEG traces obtained from a single dry electrode device to estimate the level of anesthesia during colonoscopy. They are required to produce a rank value (1 to 3) proportional to the anesthesia level. The rank values of anesthesia evaluated through the EEG traces will be correlated to the typically used "bispectral index" values simultaneously acquired. The expected efficacy of a low-cost single dry-electrode EEG would allow the monitoring of the level of anesthesia during non operating room procedures such as colonoscopy.


Description:

Monitoring of the level of anesthesia has two primary functions: to reduce the incidence of awareness during operation and to avoid too deep anesthesia that is associated with increased risks of mortality and postoperative cognitive impairment. This monitoring can be performed by processed EEG such as "Bispectral Index" that provides a simple interpretation numerical value proportional to the anesthesia level. Nevertheless, "Bispectral index" requires specific tools and disposable material that increases costs for non operating room procedure. Colonoscopy is a non operating room procedure typically performed without or with light sedation, less frequently requires deep sedation. The latter is performed by using Propofol a drug that has a low therapeutic index and might be associated with adverse effects such as respiratory depression, aspiration related to loss of airway reflexes and hypotension. The aim of the present study is to evaluate the reliable interpretation of the raw EEG traces by a staff of digestive endoscopy and operating room for monitoring the level of sedation during non operative room anesthesia to avoid adverse effects.


Recruitment information / eligibility

Status Completed
Enrollment 26
Est. completion date January 20, 2023
Est. primary completion date January 18, 2023
Accepts healthy volunteers
Gender All
Age group 25 Years to 65 Years
Eligibility Inclusion Criteria: - anesthesiologists and nursing staff of the operating room Exclusion Criteria: - specific knowledge of electroencephalography

Study Design


Related Conditions & MeSH terms


Intervention

Other:
volunteer anesthesiologists and nurses
18 not expert in electroencephalography digestive endoscopy and operating room nurses, and 8 anesthesiologists interpreting EEGs obtained with a single electrode EEG

Locations

Country Name City State
Italy Santa Maria Maddalena Hospital Volterra Pisa

Sponsors (2)

Lead Sponsor Collaborator
Azienda USL Toscana Nord Ovest Auxilium Vitae Volterra

Country where clinical trial is conducted

Italy, 

References & Publications (1)

Barnard JP, Bennett C, Voss LJ, Sleigh JW. Can anaesthetists be taught to interpret the effects of general anaesthesia on the electroencephalogram? Comparison of performance with the BIS and spectral entropy. Br J Anaesth. 2007 Oct;99(4):532-7. doi: 10.1093/bja/aem198. Epub 2007 Jul 24. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Single dry channel EEG for the monitoring of the level of anesthesia in non-operating room. A staff of digestive endoscopy and operating room after attending a brief course of EEG specifically direct to anesthesia level interpretation, were asked to classify the raw EEG trace obtained with a sigle dry electrode device in 3 levels (1 to 3) according to the following category:
1 deep sedation, , 2 intermediate state, 3 light sedation or awake according to the BIS level and and coherent with clinical conditions.
We correlate staff scores produced by classifing the EEG trace with the number automatically and simultaneously produced by the "bispectral index" tool for the measurement of the level of anesthesia.
The reliability of raw single dry electrode EEG trace, might allow to assist low-cost device for non operating room anesthesia such as for colonoscopy sedation.
two hours
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