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CompletedNCT03480880Updated Mar 29, 2018

Bispectral Index Value Changes During Induction and Surgical Decompression in Head Injury Patients

A Phase 4 interventional study of Bispectral Index in Traumatic Brain Injury, sponsored by National Institute of Mental Health and Neuro Sciences, India. Completed. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2018-03-29.

Sponsored by National Institute of Mental Health and Neuro Sciences, India · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

This study was conducted in two parts:

  1. This first part was designed to determine thiopentone dose requirement for induction of anaesthesia with and without the use of Bispectral Index monitoring - Participant and Care Provider in appropriate study arm blinded.
  2. As a secondary outcome, Bispectral index monitoring was used to observe changes in neuronal function in intraoperative period as well as haemodynamic changes intraoperatively - Participant and Care Provider blinded.
Read the detailed description

Surgery for traumatic brain injury is an anaesthetic challenge fraught with complications such as brain bulge, excessive bleeding, hypotension etc. As yet there are no anaesthetic regimen guidelines to follow for induction of anaesthesia in neurotrauma surgeries. Although the functional effect of anaesthetic agents on neuronal tissue is known quite well, there is lack of studies documenting the effect of these anaesthetic agents on head injured patients. It is also not known whether the requirement of anaesthetic agent in the same as a non head injured patient. This study was designed to assess the requirement of anaesthetic thiopentone in head injured patients and compare the anaesthetic usage with and without Bispectral index (BIS) monitoring. We also observed the real time change in neuronal function using Bispectral Index monitoring after craniotomy, i.e. effectively decompression and release of intracranial pressure intraoperatively.

02

Conditions studied

03

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Head injury patients coming for surgery

Exclusion criteria

Exclusion Criteria:

  • Hypotension/Arrythmias at time of induction
  • Extra Dural Hemorrhage
  • Extracranial injuries
  • Scalp lacerations
  • History of Seizures
  • No consent
04

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Care provider)
Enrollment
60 participants (actual)

Study arms

  • Experimental
    Group BIS

    Thiopentone dosing during induction of anaesthesia based on guidance of Bispectral Index values.

    Device: Bispectral Index

  • No intervention
    Group Clinical

    Thiopentone dosing during induction of anaesthesia based on clinical guidance targeted to loss of eyelash reflex or loss of response to noxious stimulus.

Interventions

  • DeviceBispectral Index

    Thiopentone was administered in 50 mg boluses during induction of anaesthesia, until reduction of Bispectral Index value to less than 50, and total dose of thiopentone recorded.

05

What researchers measure

Primary outcomes

  1. Thiopentone requirement

    Difference of thiopentone requirement with and without use of Bispectral Index guidance during induction of anaesthesia in traumatic brain injury patients.

    Time frame: Beginning of anaesthetic induction till End of anaesthetic induction

Secondary outcomes

  1. Intraoperative Bispectral Index changes

    Observation of Bispectral Index changes during craniotomy and decompression.

    Time frame: Beginning of anaesthetic Induction till patient is shifted to post-anaesthesia care unit.

  2. Intraoperative Systolic blood pressure changes

    Observation of Systolic blood pressure changes during craniotomy and decompression.

    Time frame: Beginning of anaesthetic Induction till patient is shifted to post-anaesthesia care unit.

  3. Intraoperative Mean blood pressure changes

    Observation of Mean blood pressure changes during craniotomy and decompression.

    Time frame: Beginning of anaesthetic Induction till patient is shifted to post-anaesthesia care unit.

  4. Intraoperative heart rate changes

    Observation of heart rate changes during craniotomy and decompression.

    Time frame: Beginning of anaesthetic Induction till patient is shifted to post-anaesthesia care unit.

06

Study locations

No study locations are listed for this record.

07

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

08

Registry details

Key details

Study ID
NCT03480880
Lead sponsor
National Institute of Mental Health and Neuro Sciences, India
Responsible party
Dhritiman Chakrabarti (Assistant Professor, National Institute of Mental Health and Neuro Sciences, India) — Principal investigator
First posted
Mar 29, 2018
Start date
Oct 1, 2016
Primary completion
May 30, 2017
Completion
Jun 15, 2017
Last update
Mar 29, 2018

Study contacts

Muthuchellappan Radhakrishnan, MD, DM
study chair · National Institute of Mental Health and Neuro Sciences, India

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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