Near Infra-red Spectroscopy for Detection of Intracranial Haematoma

July 28, 2021 updated by: Dr. David Yuen Chung CHAN, Chinese University of Hong Kong

Non-invasive Neuro-monitoring for Head Injury: Use of Near Infra-red Spectroscopy for Early Detection of Delayed Intracranial Haematoma

Fall with head injury is becoming an epidemic challenge especially with the ageing population. Contributing factors for mortality and poor functional outcome included development of cerebral contusion and delayed traumatic intracerebral haematoma. There is a higher prevalence especially with the increasing use of antiplatelets and anticoagulants.

Non-invasive monitoring such as near-infrared spectroscopy (NIRS) is sensitive in detecting intracranial changes. The role and efficacy of this non-invasive method has not been specifically established in patients with head injury as an initial non-operative monitoring. This is particular important in the setting of a general ward in which nursing staff is limited. The advantages of these noninvasive monitoring might have a role of continuous neuro-monitoring. They can also potentially reduce the number of unnecessary repeated CT Brain in the context of limited radiology staff and resources. Timely detection and treatment of this condition accordingly is crucial. Potential options of non-invasive monitoring such as nearinfrared spectroscopy (NIRS) is to be investigated.

The aim of this study is to determine the sensitivity and specificity of NIRS as a non-invasive monitoring in detecting delayed intracranial injuries in comparison with the Gold Standard CT Brain. Study design is Prospective sensitivity and specificity study of Near Infra-red Spectroscopy (NIRS) as a non-invasive monitoring in detecting delayed intracranial injuries in comparison with the Gold Standard CT Brain in Hong Kong Chinese. Consecutive patients admitted to Prince of Wales Hospital, Hong Kong would be recruited. Outcome measures including correlation of non-invasive monitoring with near-infrared spectroscopy (NIRS) to CT Brain findings including any increase in haematoma size, cerebral edema or mass effect. Secondary outcome including 30 days mortality and functional outcome at 3 months.

Study Overview

Status

Not yet recruiting

Intervention / Treatment

Detailed Description

Introduction: Fall with head injury is becoming an epidemic challenge especially with the ageing population. Contributing factors for mortality and poor functional outcome included development of cerebral contusion and delayed traumatic intracerebral haematoma. There is a higher prevalence especially with the increasing use of antiplatelets and anticoagulants.

Non-invasive monitoring such as near-infrared spectroscopy (NIRS) is sensitive in detecting intracranial changes. The role and efficacy of this non-invasive method has not been specifically established in patients with head injury as an initial non-operative monitoring. This is particular important in the setting of a general ward in which nursing staff is limited. The advantages of these non-invasive monitoring might have a role of continuous neuro-monitoring. They can also potentially reduce the number of unnecessary repeated CT Brain in the context of limited radiology staff and resources.

Timely detection and treatment of this condition accordingly is crucial. Potential options of non-invasive monitoring such as near-infrared spectroscopy (NIRS) is to be investigated.

Aims and Hypotheses to be tested:

The aim of this study is to determine the sensitivity and specificity of near-infrared spectroscopy (NIRS) as a non-invasive monitoring in detecting delayed intracranial injuries in comparison with the Gold Standard CT Brain.

Plan of Investigation:

This is a prospective sensitivity and specificity correlation study of Near Infra-red Spectroscopy (NIRS) as a non-invasive monitoring in detecting delayed intracranial injuries in comparison with the Gold Standard CT Brain in Hong Kong Chinese. Consecutive patients admitted to Prince of Wales Hospital, Hong Kong would be recruited.

Consecutive patients fulfilling the inclusion and exclusion criteria are treated with standard of care with near-infrared spectroscopy (NIRS). Criteria to proceed for repeat CT Brain scan 1) clinical deterioration of GCS >2 points, 2) NIRS monitoring has increase in difference in absorbance of light at 760nm >0.3, or 3) 8 hours after admission for baseline interval scan for all patients as part of the standard of care. Non-invasive monitoring with near-infrared spectroscopy (NIRS) would be applied to all patients' forehead for consecutively 48 hours after admission.

Inclusion criteria

  1. Age greater than or equal to 18 years old,
  2. History of traumatic brain injury,
  3. Radiological evidence of intracranial haematoma,
  4. Glasgow Coma Scale (GCS) less than 15 upon admission,
  5. Not undergoing immediate operation,
  6. Admission to the general ward or high dependence unit of Neurosurgery, Prince of Wales Hospital.

Exclusion criteria

  1. Presence of frontal scalp laceration preventing the application of non-invasive monitoring on the forehead,
  2. Presence of pneumocephale,
  3. Requirement of immediate surgical intervention as judged by the on-call neurosurgeon.
  4. Patients who have joined other drug trial in the last four weeks;
  5. Pregnant or on breast feeding;
  6. Any other reasons that the researchers consider unsuitable.

Primary outcome - Correlation coefficient of near-infrared spectroscopy (NIRS) to CT Brain findings including any increase in haematoma size, cerebral edema or mass effect.

Secondary outcomes

- Secondary outcome including number of CT scan performed, correlation of NIRS reading with Glasgow coma scale (GCS), rate of intervention with either medical treatment such as use of mannitol, Transamin or blood product transfusion, or surgical treatment such as operation, 30 days mortality and functional outcome at 3 months.

Purpose and Potential:

Near-infrared spectroscopy (NIRS) can offer continuous neuro-monitoring. This is particular important in the setting of a general ward in which nursing staff is limited. This allows early detection of delayed haematoma for early intervention. At the same time, the use of NIRS can potentially reduce the number of unnecessary repeated CT Brain in the context of limited radiology staff and resources.

Study Type

Observational

Enrollment (Anticipated)

24

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

      • Hong Kong, Hong Kong, 852
        • Division of Neurosurgery, Department of Surgery, Prince of Wales Hospital, Hong Kong

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 and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Consecutive traumatic brain injury patients fulfilling the inclusion and exclusion criteria are treated with standard of care with near-infrared spectroscopy (NIRS).

Description

Inclusion Criteria:

  1. Age greater than or equal to 18 years old,
  2. History of traumatic brain injury,
  3. Radiological evidence of intracranial haematoma,
  4. Glasgow Coma Scale (GCS) less than 15 upon admission,
  5. Not undergoing immediate operation,
  6. Admission to the general ward or high dependence unit of Neurosurgery, Prince of Wales Hospital.

Exclusion Criteria:

  1. Presence of frontal scalp laceration preventing the application of non-invasive monitoring on the forehead,
  2. Presence of pneumocephale,
  3. Requirement of immediate surgical intervention as judged by the on-call neurosurgeon.
  4. Patients who have joined other drug trial in the last four weeks;
  5. Pregnant or on breast feeding;
  6. Any other reasons that the researchers consider unsuitable.

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
Traumatic brain injury with cerebral contusions

All patients would be receiving the same treatment including application of non-invasive monitoring with near-infrared spectroscopy (NIRS) together with the standard of care with interval CT Brain scan for all patients.

Non-invasive monitoring with near-infrared spectroscopy (NIRS) is very safe and is in current daily routine clinical use for intraoperative patients.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Correlation coefficient
Time Frame: 1 week
Correlation coefficient of near-infrared spectroscopy (NIRS) to CT Brain findings including any increase in haematoma size, cerebral edema or mass effect.
1 week

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
30 days mortality
Time Frame: 30 days
30 days mortality
30 days
modified Rankin Scale
Time Frame: 3 months
modified Rankin Scale (mRS) at 3 months. The mRS scale ranges from 0 to 6, in which 0 indicates no disability, while 6 indicates death.
3 months

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
correlation of NIRS reading with Glasgow coma scale (GCS)
Time Frame: 1 week
correlation of NIRS reading with Glasgow coma scale (GCS). The scale GCS ranges from 3 to 15, in which a GCS of 3 indicates a status of deep coma, whereas a GCS of 15 indicates a fully conscious status.
1 week
Number of CT performed
Time Frame: 1 week
Number of CT performed
1 week
Other intervention such as blood product transfusion or operation
Time Frame: 1 week
Other intervention such as blood product transfusion or operation
1 week

Collaborators and Investigators

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

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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 (ANTICIPATED)

April 1, 2022

Primary Completion (ANTICIPATED)

March 31, 2023

Study Completion (ANTICIPATED)

March 31, 2023

Study Registration Dates

First Submitted

August 28, 2018

First Submitted That Met QC Criteria

August 28, 2018

First Posted (ACTUAL)

August 31, 2018

Study Record Updates

Last Update Posted (ACTUAL)

July 29, 2021

Last Update Submitted That Met QC Criteria

July 28, 2021

Last Verified

July 1, 2021

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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