Reliability of BIS Monitoring in Neurosurgical Patients

February 15, 2013 updated by: Carla Carozzi, MD, Fondazione I.R.C.C.S. Istituto Neurologico Carlo Besta

Reliability of Bispectral Index for Depth of Anesthesia Monitoring in Neurosurgical Patients

The aim of the study is to assess the reliability of Bispectral Index (BIS Vista , Covidien) in neurosurgical patients . BIS values at Loss of Consciousness (LOC), Post Intubation (PI) and Return of Consciousness (ROC) in neurosurgical patients are compared to those of non-neurosurgical patients, during routine anesthesia procedures.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

405

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Italy
      • Milan, Italy, 20133
        • Istituto Neurologico Carlo Besta

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

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

patients undergoing elective craniotomy and elective spinal cord and column surgery.

Description

Inclusion Criteria:

  • BIS > 90 at baseline (awake)
  • ASA I or II

Exclusion Criteria:

  • GSC < 15
  • anticipated difficult ventilation and/or intubation
  • BMI > 30
  • surgical site that does not allow BIS monitoring
  • bilateral hearing loss
  • not speaking Italian Language

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

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Neurosurgical
Device: Bispectral Index (BIS Vista, Covidien)
BIS values at LOC, PI, ROC.
Non-neurosurgical
Device: Bispectral Index (BIS Vista, Covidien)
BIS values at LOC, PI, ROC.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
BIS values at LOC, PI and ROC
Time Frame: 8 months
8 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
incidence of intraoperative awareness
Time Frame: 0, 1, 3, 30 days after surgery
intraoperative awareness assessed by BRICE Interview
0, 1, 3, 30 days after surgery
incidence of postoperative delirium
Time Frame: 0, 1, 3, 30 days after surgery
assessed by Nursing Delirium Scale and CAM-ICU.
0, 1, 3, 30 days after surgery
predicted site effect drugs concentration at LOC, PI and ROC
Time Frame: 8 months
Propofol and Remifentanil site effect concentrations delivered by TCI.
8 months
total amount of anesthetic drugs delivered at the end of surgery
Time Frame: 8 months
8 months
recovery time after surgery
Time Frame: 8 months
Time needed for the patients to completely regain orientation
8 months

Collaborators and Investigators

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

Sponsor

Fondazione I.R.C.C.S. Istituto Neurologico Carlo Besta

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

November 1, 2011

Primary Completion (Actual)

December 1, 2012

Study Completion (Actual)

December 1, 2012

Study Registration Dates

First Submitted

November 25, 2011

First Submitted That Met QC Criteria

November 29, 2011

First Posted (Estimate)

December 1, 2011

Study Record Updates

Last Update Posted (Estimate)

February 18, 2013

Last Update Submitted That Met QC Criteria

February 15, 2013

Last Verified

February 1, 2013

More Information

Terms related to this study

Other Study ID Numbers

  • BISnch2011

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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