Efficacy of BIS Monitoring in Deep Hypnotic State

December 10, 2023 updated by: Bintang Pramodana, Indonesia University

Efficacy of BIS Monitoring in Deep Hypnotic State and Its Outcome on Patient Undergoing Elective Neurosurgery

Determining the efficacy of the BIS monitor in monitoring deep hypnotic states as well as intra- and post-operative outcomes in neurosurgery patients

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This study will be conducted with a two-group, double-blind, randomized clinical trial design in elective patients who will undergo neurosurgical procedures under general anesthesia. Patients scheduled for elective neurosurgery who meet the inclusion criteria will be randomized into one of the intervention groups, with or without BIS. Demographic data will be taken from medical records. In both groups, the BIS probe will be inserted before induction, but for the control group, the BIS monitor will be closed, while for the intervention group, anesthesia will be titrated according to the BIS value to maintain the BIS value in the range of 40-60. In the group with an open BIS, the anesthesia protocol is the use of anesthetic gas, and the anesthetic drug will be adjusted to the BIS value range of 40-60 or BIS-guided, while the anesthesia protocol used in a closed BIS is carried out like general anesthesia without using BIS. The BIS value will be recorded minute by minute according to the extraction feature of the BIS machine after surgery. The total use of anesthetic agents, duration of surgery, and intraoperative hemodynamics will be recorded through anesthesia status. The patient will follow the progress until the patient is discharged from the hospital

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
50

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients aged 30-60 years with an ASA tolerance of 1-2 who will undergo general anesthesia techniques
  • Operation duration > 3 hours
  • The patient agrees to take part in the study.

Exclusion Criteria:

  • Continuous intraoperative use of ketamine, magnesium sulfate, dexmedetomidine, lidocaine agents
  • Massive bleeding that causes hemodynamic disturbances
  • Severe electrolyte disturbances
  • Severe liver or kidney function disorders
  • The patient was decided not to extubate in the operating room

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: BIS Guided
In the group with BIS where the anesthesia protocol is opened, namely the use of anesthetic gas, the anesthetic drug will be adjusted to the BIS value range of 40-60 or BIS-guided
Device: BIS
In the group with BIS where the anesthesia protocol is opened, namely the use of anesthetic gas, the anesthetic drug will be adjusted to the BIS value range of 40-60 or BIS-guided
No Intervention: BIS Blinded
The anesthesia protocol used in closed BIS is carried out like general anesthesia without using BIS.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Deep Hypnotic State
Time Frame: During surgery and up to 24 hours after surgery
the state of depth of anesthesia where the Bispectral Index value is <40. is calculated from the beginning of induction to the end of the operation and accumulated at the end of the operation.
During surgery and up to 24 hours after surgery
Total use of anesthetic agents
Time Frame: During surgery and up to 24 hours after surgery
The amount of anesthetic gas used from the start of the operation to the end of the operation
During surgery and up to 24 hours after surgery
Number of Participants with Hypotension and Bradycardia Intraoperative
Time Frame: During surgery and up to 24 hours after surgery
Intraoperative hypotension was defined as systolic blood pressure <90 mm Hg for >5 minutes or a 35% decrease in MAP. Intraoperative bradycardia was defined as a heart rate <60 beats/min for >5 minutes
During surgery and up to 24 hours after surgery
Vasopressor use
Time Frame: Before surgery, during surgery, up to 24 hours after surgery
Use of vasopressor agents (dopamine, dobutamine, norepinephrine, epinephrine, etc.) will be calculated and totaled at the end of surgery.
Before surgery, during surgery, up to 24 hours after surgery
Incidence of delirium
Time Frame: up to 24 hour after surgery
The method for measuring the incidence of delirium will be assessed by researchers using the CAM (Confusion Assessment Method) questionnaire which has been validated in Indonesian
up to 24 hour after surgery
Incidence of mortality
Time Frame: up to 28 days after surgery
The incidence of death after surgery in hospital or outside the hospital
up to 28 days after surgery
Lenght of stay
Time Frame: From the date of randomization until 28 days after surgery
The length of stay is measured from days after surgery until being discharged from the hospital.
From the date of randomization until 28 days after surgery
Duration of recovery
Time Frame: up to 7 days post operative
The duration of recovery was measured from post-operative day 0 until the patient was able to return to the patient's baseline function
up to 7 days post operative

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Indonesia University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 15, 2023

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 30, 2024

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 28, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 21, 2023

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 10, 2023

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 20, 2023

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
December 20, 2023

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 10, 2023

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
December 1, 2023

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • IndonesiaU432

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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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