The Influence of Age on EEG Signals and Consciousness During Anesthesia
NCT ID: NCT04765046
Last Updated: 2024-07-03
Study Results
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View full resultsBasic Information
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COMPLETED
NA
90 participants
INTERVENTIONAL
2021-08-18
2023-04-03
Brief Summary
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Detailed Description
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Conditions
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Study Design
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NA
SINGLE_GROUP
OTHER
NONE
Study Groups
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BIS™ System
Enrolled subjects who are undergoing a standard of care elective surgery under general anesthesia, will be equipped with the BIS system to non-invasively measure and interpret brain waive activity directly related to the effects of anesthetic agents during the surgery duration.
Bispectral (BIS™) Complete Monitoring System
The BIS™ Complete Monitoring System is a user-configurable patient monitoring system designed to monitor the hypnotic state of the brain based on the acquisition and processing of EEG signals. The BIS technology converts raw EEG data acquired from the frontal cortex into a single number to measure the level of consciousness, called the BIS index. A bilateral sensor is to be placed on the patient's forehead to collect the EEG signals and transmit them back to the system.
Interventions
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Bispectral (BIS™) Complete Monitoring System
The BIS™ Complete Monitoring System is a user-configurable patient monitoring system designed to monitor the hypnotic state of the brain based on the acquisition and processing of EEG signals. The BIS technology converts raw EEG data acquired from the frontal cortex into a single number to measure the level of consciousness, called the BIS index. A bilateral sensor is to be placed on the patient's forehead to collect the EEG signals and transmit them back to the system.
Eligibility Criteria
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Inclusion Criteria
1. ≥18 years of age
2. American Society of Anesthesiologists (ASA) physical status I-III
3. Able and willing to participate in the study and sign the informed consent form
4. Will undergo non-ambulatory elective surgery under general anesthesia
5. Has an expected surgery time \>2 hours
Exclusion Criteria
1. Pregnant
2. Unwilling to undergo EEG measurement
3. Undergone brain surgery procedure or had a cerebrovascular accident or severe head trauma in the last 10 years
4. Alcohol or illicit drug use, which prevents normal functioning in society or has led to organ toxicity. Chronic use of opioids, narcotics, or analgesics, which may limit a subject's responsiveness to analgesic dosages.
5. Known or suspected electroencephalograph abnormality (e.g., epilepsy or scarring)
6. Presence of a major psychiatric condition such as Bipolar disorder/ schizophrenia/ Alzheimer's disease/ dementia/ Parkinson's disease /major depression
7. Severe visual or auditory disorder
8. Cannot understand or is unwilling to perform the study assessments, according to the investigator's judgment
18 Years
ALL
No
Sponsors
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Medtronic - MITG
INDUSTRY
Responsible Party
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Principal Investigators
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Albert Dahan, MD PhD
Role: PRINCIPAL_INVESTIGATOR
Leiden University Medical Center
Locations
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Rambam Health Care Campus
Haifa, , Israel
Leiden University Medical Center
Leiden, , Netherlands
Countries
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References
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Kanonidou Z, Karystianou G. Anesthesia for the elderly. Hippokratia. 2007 Oct;11(4):175-7.
Punjasawadwong Y, Phongchiewboon A, Bunchungmongkol N. Bispectral index for improving anaesthetic delivery and postoperative recovery. Cochrane Database Syst Rev. 2014 Jun 17;2014(6):CD003843. doi: 10.1002/14651858.CD003843.pub3.
Glass PS, Bloom M, Kearse L, Rosow C, Sebel P, Manberg P. Bispectral analysis measures sedation and memory effects of propofol, midazolam, isoflurane, and alfentanil in healthy volunteers. Anesthesiology. 1997 Apr;86(4):836-47. doi: 10.1097/00000542-199704000-00014.
Flaishon R, Windsor A, Sigl J, Sebel PS. Recovery of consciousness after thiopental or propofol. Bispectral index and isolated forearm technique. Anesthesiology. 1997 Mar;86(3):613-9. doi: 10.1097/00000542-199703000-00013.
Schwab HS, Seeberger MD, Eger EI 2nd, Kindler CH, Filipovic M. Sevoflurane decreases bispectral index values more than does halothane at equal MAC multiples. Anesth Analg. 2004 Dec;99(6):1723-1727. doi: 10.1213/01.ANE.0000136467.47996.70.
Hans P, Dewandre PY, Brichant JF, Bonhomme V. Comparative effects of ketamine on Bispectral Index and spectral entropy of the electroencephalogram under sevoflurane anaesthesia. Br J Anaesth. 2005 Mar;94(3):336-40. doi: 10.1093/bja/aei047. Epub 2004 Dec 10.
Sengupta S, Ghosh S, Rudra A, Kumar P, Maitra G, Das T. Effect of ketamine on bispectral index during propofol--fentanyl anesthesia: a randomized controlled study. Middle East J Anaesthesiol. 2011 Oct;21(3):391-5.
Alkire MT. Quantitative EEG correlations with brain glucose metabolic rate during anesthesia in volunteers. Anesthesiology. 1998 Aug;89(2):323-33. doi: 10.1097/00000542-199808000-00007.
Werner P, Heinik J, Mendel A, Reicher B, Bleich A. Examining the reliability and validity of the Hebrew version of the Mini Mental State Examination. Aging (Milano). 1999 Oct;11(5):329-34. doi: 10.1007/BF03339808.
Vellas B, Villars H, Abellan G, Soto ME, Rolland Y, Guigoz Y, Morley JE, Chumlea W, Salva A, Rubenstein LZ, Garry P. Overview of the MNA--Its history and challenges. J Nutr Health Aging. 2006 Nov-Dec;10(6):456-63; discussion 463-5.
Perna S, Francis MD, Bologna C, Moncaglieri F, Riva A, Morazzoni P, Allegrini P, Isu A, Vigo B, Guerriero F, Rondanelli M. Performance of Edmonton Frail Scale on frailty assessment: its association with multi-dimensional geriatric conditions assessed with specific screening tools. BMC Geriatr. 2017 Jan 4;17(1):2. doi: 10.1186/s12877-016-0382-3.
Anderson O, Davis R, Hanna GB, Vincent CA. Surgical adverse events: a systematic review. Am J Surg. 2013 Aug;206(2):253-62. doi: 10.1016/j.amjsurg.2012.11.009. Epub 2013 May 1.
Provided Documents
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Document Type: Study Protocol
Document Type: Statistical Analysis Plan
Other Identifiers
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MDT18067TIARA
Identifier Type: -
Identifier Source: org_study_id
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