NCT04423146

Brief Summary

Alteration of evoked potentials is described in cases with using inhalation anaesthetics. Muscle relaxants are contraindicated in case of motor evoked potentials except for initial dose for intubation of the patient. Dominant anaesthetic method for procedures with measuring motor evoked potentials is total intravenous anaesthesia (TIVA). Bispectral index (BIS) monitoring is one of the possible options for comprehensive monitoring of the depth of general anaesthesia. It helps to optimize the management of anaesthesia, so it reduces the risk of perioperative awakenings due to shallow anaesthesia or inadequate depth of anaesthesia associated with the risk of cognitive dysfunction, as well as investigators expect worse interpretation of motor evoked potentials. At the same time, it shortens the time to wake up from general anaesthesia after hours-long surgery. BIS monitoring allows optimizing the depth of anaesthesia and leads to improve quality and interpretation of motor evoked potentials. The depth of TIVA managed by BIS affects the reproducibility of motor evoked potentials.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
150

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Sep 2020

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 5, 2020

Completed
4 days until next milestone

First Posted

Study publicly available on registry

June 9, 2020

Completed
3 months until next milestone

Study Start

First participant enrolled

September 1, 2020

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2024

Completed
1 day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2025

Completed
Last Updated

March 24, 2023

Status Verified

March 1, 2023

Enrollment Period

4.3 years

First QC Date

June 5, 2020

Last Update Submit

March 23, 2023

Conditions

Keywords

scoliosissurgeryscoliosis surgeryMotor evoked potentials

Outcome Measures

Primary Outcomes (1)

  • The evocation of reproducible motor evoked potentials at different BIS levels (40 - 60)

    The evocation of reproducible motor evoked potentials at different BIS levels (40 - 60) will be monitored according to standardized orthopaedic practise for evaluation of MEP.

    During the scoliosis surgery

Secondary Outcomes (1)

  • MEP parameters

    During the scoliosis surgery

Other Outcomes (3)

  • Perioperative blood management

    24 hours postoperatively

  • Surgical complications

    30 days postoperatively

  • Anaesthesiology management data

    Intraoperative period until extubation

Study Arms (1)

Patients scheduled for elective scoliosis surgery

Patients scheduled for elective scoliosis surgery will be anesthetized in TIVA mode,combining propofol and remifentanil with titration to the target BIS value. Motor evoked potentials will be measured and evaluated by members of operating team perioperatively. The quality of evoked potentials (poor vs good quality) and the actual value of amplitude and latency at different BIS levels (40 - 60) will be monitored.

Other: The evocation of reproducible motor evoked potential according to the different BIS levels

Interventions

The evocation of reproducible motor evoked potential and the actual value of amplitude and latency at different BIS levels (40 - 60) will be monitored.

Patients scheduled for elective scoliosis surgery

Eligibility Criteria

Age2 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients indicated for elective scoliosis surgery with perioperative MEP monitoring

You may qualify if:

  • Patients indicated for scoliosis surgery with perioperative MEP monitoring

You may not qualify if:

  • Scoliosis surgery without perioperative MEP monitoring
  • Contraindication for perioperative MEP monitoring
  • Contraindication of using propofol (soy, egg lecithin or peanuts allergy,...) or other drugs used for anaesthesia
  • The inability of attachment of BIS electrodes to the standard position

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Faculty hospital Brno

Brno, South Moravian, 62500, Czechia

RECRUITING

MeSH Terms

Conditions

Scoliosis

Condition Hierarchy (Ancestors)

Spinal CurvaturesSpinal DiseasesBone DiseasesMusculoskeletal Diseases

Study Officials

  • Repko Martin, prof. MD., Ph.D.

    Faculty of medicince Masaryk University and University Hospital Brno

    STUDY CHAIR

Central Study Contacts

Martina Kosinova, MD., Ph.D

CONTACT

Jan Hudec, MD.

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
assoc.prof.MD,Ph.D

Study Record Dates

First Submitted

June 5, 2020

First Posted

June 9, 2020

Study Start

September 1, 2020

Primary Completion

December 31, 2024

Study Completion

January 1, 2025

Last Updated

March 24, 2023

Record last verified: 2023-03

Locations