NCT04443465

Brief Summary

Resection of brain tumours forms a large proportion of work in brain surgery. One important aspect is to minimize damage to normal brain structures during this process. This improves patient outcomes and reduces complications. To identify normal brain structures from the abnormal tumours, the brain surgeons use a 'guidance' technique called intraoperative neuro-monitoring (IONM). IONM uses various electrodes to observe spontaneous electrical activity of the brain or its reaction to a stimulus such as muscle contraction, light or sound. It is now becoming common practice for neurosurgeons to use this tool during brain and spinal surgery to provide a real-time feedback under anaesthesia to help them minimise injury to important and normal brain and spine structures. IONM interpretation needs fulfilment of multiple preconditions and major modifications to the anaesthetic to reduce its inaccuracies. This invites added risks and complications such as awareness, convulsions and heart problems under anaesthesia. A team approach between the surgeon, anaesthetist and neurophysiologist (IONM specialist) is also crucial to obtain meaningful results. Therefore, the usefulness of this technique is still not perfect. Although, benefits of IONM are obvious, information on associated complications and patient experience are not commonly found in the literature. Information on other effects such as hormonal balance and tumour recurrence are also scarce. In general, these aspects have little scientific exploration. There are anecdotal reports of recurrent seizures during IONM leading to serious heart problems, teeth and tongue damage due to grinding and postoperative calf muscle injury necessitating further surgery to save limbs. Neither of these is in the literature including unorthodox treatments such as the use of cold saline to control IONM triggered fits. This study is designed to observe complications and outcome and explore patient experiences following IONM in an observational capacity not interfering with the clinical management or treatment of these patients. The investigators intend to interview the participants after surgery, at a convenient time before leaving hospital to understand their views and experiences during and after surgery and their general progress in the following one year.

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
50

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Oct 2018

Typical duration 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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 10, 2018

Completed
Same day until next milestone

Study Start

First participant enrolled

October 10, 2018

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 10, 2020

Completed
4 months until next milestone

First Posted

Study publicly available on registry

June 23, 2020

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 10, 2021

Completed
Last Updated

June 23, 2020

Status Verified

March 1, 2020

Enrollment Period

1.4 years

First QC Date

October 10, 2018

Last Update Submit

June 19, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • Experiences of participants who undergo intra-operative neurophysiological monitoring under anaesthesia

    A qualitative study of patient experiences by thematic analysis

    2 years

Secondary Outcomes (3)

  • IONM related postoperative sequel during post surgical recovery in hospital

    2 years

  • Mortality at 28 day and 1 year follow up

    2 years

  • Morbidity at 28 days and 1 year follow up

    2 years

Eligibility Criteria

Age10 Years+
Sexall
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Adults and children aged 10 and above undergoing brain or spinal surgery with intra operative neurophysiological monitoring with intravenous anaesthesia

You may qualify if:

  • All patients aged 10 and above undergoing elective neurosurgery guided by IONM will be recruited with informed consent.

You may not qualify if:

  • Lack of informed consent and who are unable to communicate verbally.-

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Kings College Hospital NHS Trust

London, SE5 9RS, United Kingdom

Location

Related Publications (7)

  • Stecker MM. A review of intraoperative monitoring for spinal surgery. Surg Neurol Int. 2012;3(Suppl 3):S174-87. doi: 10.4103/2152-7806.98579. Epub 2012 Jul 17.

    PMID: 22905324BACKGROUND
  • Jameson LC, Sloan TB. Monitoring of the brain and spinal cord. Anesthesiol Clin. 2006 Dec;24(4):777-91. doi: 10.1016/j.atc.2006.08.002.

    PMID: 17342964BACKGROUND
  • Arnold PM. Use of intraoperative monitoring in children. J Neurosurg Pediatr. 2014 Jun;13(6):589. doi: 10.3171/2013.9.PEDS13439. Epub 2014 Apr 4. No abstract available.

    PMID: 24702618BACKGROUND
  • Bland JM, Altman DG. Statistical methods for assessing agreement between two methods of clinical measurement. Lancet. 1986 Feb 8;1(8476):307-10.

    PMID: 2868172BACKGROUND
  • Jameson LC, Janik DJ, Sloan TB. Electrophysiologic monitoring in neurosurgery. Anesthesiol Clin. 2007 Sep;25(3):605-30, x. doi: 10.1016/j.anclin.2007.05.004.

  • Soghomonyan S, Moran KR, Sandhu GS, Bergese SD. Anesthesia and evoked responses in neurosurgery. Front Pharmacol. 2014 Apr 14;5:74. doi: 10.3389/fphar.2014.00074. eCollection 2014. No abstract available.

  • Cabraja M, Stockhammer F, Mularski S, Suess O, Kombos T, Vajkoczy P. Neurophysiological intraoperative monitoring in neurosurgery: aid or handicap? An international survey. Neurosurg Focus. 2009 Oct;27(4):E2. doi: 10.3171/2009.7.FOCUS0969.

MeSH Terms

Conditions

Intraoperative ComplicationsPostoperative Complications

Condition Hierarchy (Ancestors)

Pathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Chulananda Goonasekera, PhD

    Kings College Hospital NHS Trust, London

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 10, 2018

First Posted

June 23, 2020

Study Start

October 10, 2018

Primary Completion

March 10, 2020

Study Completion

March 10, 2021

Last Updated

June 23, 2020

Record last verified: 2020-03

Locations