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Trial registered on ANZCTR
Registration number
ACTRN12608000101381
Ethics application status
Not yet submitted
Date submitted
19/02/2008
Date registered
22/02/2008
Date last updated
20/11/2015
Type of registration
Prospectively registered
Titles & IDs
Public title
Comparison of Airway Scope and GlideScope in patients with Cervical Spine Immobilisation
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Scientific title
Comparison of Airway Scope and GlideScope with respect to intubation time and intubation difficulty scale (IDS) scores in patients with cervical spine immobilisation
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Secondary ID [1]
287953
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Nil known
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Cervical Spine immobilisation
2849
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Condition category
Condition code
Anaesthesiology
2982
2982
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0
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Anaesthetics
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
A single tracheal intubation using the Airway Scope. The process involves placing a breathing tube in the trachea and it occurs after the patient is anaesthetised. The intubation procedure takes less than 2 minutes to complete. Intubation is usually aided by a device called a laryngoscope, which is placed in the patients mouth. The Airway Scope is a novel video laryngoscope with a number of design features that suggest its utility in the setting of cervical spine immobilisation.
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Intervention code [1]
2579
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Treatment: Devices
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Comparator / control treatment
A single tracheal intubation using the GlideScope. The process involves placing a breathing tube in the trachea and it occurs after the patient is anaesthetised. The intubation procedure takes less than 2 minutes to complete. Intubation is usually aided by a device called a laryngoscope, which is placed in the patients mouth. The GlideScope is a video laryngoscope with an established place in the airway management of patients with cervical spine immobilisation.
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Control group
Active
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Outcomes
Primary outcome [1]
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Time of intubation
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Assessment method [1]
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Timepoint [1]
3860
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At intubation
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Primary outcome [2]
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Intubation Difficulty Scale (IDS) Score
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Assessment method [2]
3861
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Timepoint [2]
3861
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At intubation
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Secondary outcome [1]
6500
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Rate of successful placement of the tracheal tube
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Assessment method [1]
6500
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Timepoint [1]
6500
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At intubation
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Secondary outcome [2]
6501
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Cormack & Lehane grade
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Assessment method [2]
6501
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Timepoint [2]
6501
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At laryngoscopy
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Secondary outcome [3]
6502
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Number of intubation attempts
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Assessment method [3]
6502
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Timepoint [3]
6502
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At laryngoscopy
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Secondary outcome [4]
6503
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Number of optimisation manoeuvres required to aid tracheal intubation
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Assessment method [4]
6503
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Timepoint [4]
6503
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At intubation
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Eligibility
Key inclusion criteria
Patients presenting for elective surgery requiring tracheal intubation Americian Society Anesthesiologists (ASA) physical status 1-3
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
Age >18, Mental impairment, Clinical signs of difficult airway, History of difficult airway
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Sealed envelopes
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Randomisation will occur by using a randomisation table from a statistic book.
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
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Intervention assignment
Parallel
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Other design features
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Phase
Not Applicable
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Type of endpoint/s
Efficacy
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Statistical methods / analysis
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Recruitment
Recruitment status
Withdrawn
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Reason for early stopping/withdrawal
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Date of first participant enrolment
Anticipated
1/03/2008
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Actual
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
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Sample size
Target
60
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
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Recruitment postcode(s) [1]
779
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4006
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Funding & Sponsors
Funding source category [1]
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Hospital
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Name [1]
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Royal Brisbane and Women's Hospital
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Address [1]
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Butterfield Street
Herston Queensland 4006
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Country [1]
3100
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Australia
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Primary sponsor type
Individual
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Name
Michael Edwards
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Address
Department of Anaesthesia & Perioperative Medicine
Royal Brisbane and Women's Hospital
Butterfield Street
Herston Queensland 4006
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Country
Australia
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Secondary sponsor category [1]
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None
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Name [1]
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Address [1]
2792
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Country [1]
2792
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Other collaborator category [1]
207
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Individual
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Name [1]
207
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James Troup
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Address [1]
207
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Department of Anaesthesia & Perioperative Medicine
Royal Brisbane and Women's Hospital
Butterfield Street
Herston Queensland 4006
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Country [1]
207
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Australia
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Other collaborator category [2]
208
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Individual
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Name [2]
208
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Keith Greenland
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Address [2]
208
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Department of Anaesthesia & Perioperative Medicine
Royal Brisbane and Women's Hospital
Butterfield Street
Herston Queensland 4006
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Country [2]
208
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Australia
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Ethics approval
Ethics application status
Not yet submitted
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Ethics committee name [1]
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Royal Brisbane and Women's Health Service District Human Research Ethics Committe
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Ethics committee address [1]
5080
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Level 7, Block 7 Royal Brisbane and Women's Hospital Butterfield Street Herston Queensland 4029
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Ethics committee country [1]
5080
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Australia
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Date submitted for ethics approval [1]
5080
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08/01/2008
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Approval date [1]
5080
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Ethics approval number [1]
5080
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Summary
Brief summary
Failure to immobilise the neck during tracheal intubation in patients with cervical spine injuries (CSI) can result in a devastating neurologic outcome. One method to immobilise the neck during laryngoscopy and tracheal intubation is manual in-line neck stabilisation (MILNS). With MILNS, however, it is often more difficult to visualise the larynx using conventional laryngoscopy. Consequently, the application of MILNS may result in failure to secure the airway, which may result in substantial morbidity or even mortality. These issues highlight the need to develop alternative approaches to securing the airway in patients with CSI. The purpose of the proposed study is to compare the performance of the Airway Scope and GlideScope laryngoscopes for tracheal intubation in patients with cervical spine immobilisation using MILNS. The GlideScope laryngoscope, is a modification of the standard Macintosh blade, with a high-resolution camera and with a light source for illumination embedded within the blade. Endotracheal intubation is performed based on an image on a screen. Its use is well described in the airway management of patients with immobilised cervical spines. The Airway Scope, in contrast, is a novel intubation device. It is a video laryngoscope with a reusable handle and desposible blade. A number of design features that suggest its utility in the setting of cervical spine immobilisation. A limited amount of research to date has generally supported this proposition. We intend to conducting a randomised, single-blind, controlled clinical trial. All patients will receive a standardised general anaesthetic with routine non-invasive monitoring. The neck will be immobilised using MILNS applied by an experienced assistant. Participants will be randomly assigned to tracheal intubation with either the Airway Scope or the GlideScope. All intubations will be performed by one anaesthetist experienced in the use of both laryngoscopes. The primary outcome measures will be intubation time and the Intubation Difficulty Scale score. Any complications or difficulties will be recorded.
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Dr Michael Edwards
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Address
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As below
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Country
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Australia
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Phone
28385
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as below
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Fax
28385
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Email
28385
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as below
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Contact person for public queries
Name
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Dr Keith Greenland
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Address
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Department of Anaesthesia & Perioperative Medicine
Royal Brisbane and Women's Hospital
Butterfield Street
Herston Queensland 4006
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Country
11542
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Australia
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Phone
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(07) 36368111
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Fax
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(07) 36361308
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Email
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[email protected]
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Contact person for scientific queries
Name
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Dr Michael Edwards
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Address
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Department of Anaesthesia & Perioperative Medicine
Royal Brisbane and Women's Hospital
Butterfield Street
Herston Queensland 4006
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Country
2470
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Australia
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Phone
2470
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(07) 36368111
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Fax
2470
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(07) 36361308
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Email
2470
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[email protected]
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No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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