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GlideScope Groove Versus Macintosh Blade for Double-Lumen Endotracheal Tube Intubation

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT01488695
Recruitment Status : Not yet recruiting
First Posted : December 8, 2011
Last Update Posted : September 8, 2016
Information provided by (Responsible Party):

Study Description
Brief Summary:
A new GlideScope videolaryngoscope has been developed, which utilizes a track on the superior surface of the blade to guide the endotracheal tube, which is advanced in the track as opposed to "free-hand" along the inferior surface, where the camera is located. This new GlideScope can be used for double-lumen endotracheal tubes (DLT). The investigators hypothesize that this GlideScope will be easier to use than the Macintosh blade.

Condition or disease Intervention/treatment
Intubation, Intratracheal Device: GlideScope Groove Device: Control: Macintosh blade

Study Design

Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 80 participants
Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Comparison of GlideScope Groove to Macintosh Blade for Orotracheal Intubation With Double-Lumen Endotracheal Tube: a Randomised Controlled Trial
Study Start Date : July 2017
Estimated Primary Completion Date : June 2018
Estimated Study Completion Date : June 2018
Arms and Interventions

Arm Intervention/treatment
Experimental: GlideScope Groove
Patient will be intubated using the GlideScope Groove device.
Device: GlideScope Groove
GlideScope Groove
Other Name: Verathon
Active Comparator: Control
Control Group: Macintosh Blade
Device: Control: Macintosh blade
Control: Patients will be intubated using the Macintosh blade
Other Name: Mac 3, 4

Outcome Measures

Primary Outcome Measures :
  1. Duration of Intubation [ Time Frame: Day 1 ]
    The intubation will be timed using a stopwatch.

Secondary Outcome Measures :
  1. Number of intubation attempts [ Time Frame: Day 1 ]
    Number of intubation attempts

  2. Number of failures to intubate [ Time Frame: Day 1 ]
    Number of failures to intubate

  3. Use of external laryngeal pressure [ Time Frame: Day 1 ]
    Whether or not external laryngeal pressure was needed to facilitate tracheal intubation

  4. Laryngoscopic grade distribution [ Time Frame: Day 1 ]
    Cormack and Lehane Grade observed during laryngoscopy

  5. Presence of Sore throat [ Time Frame: Day 3 ]
    Sore throat will be graded on POD #2 as none, mild, moderate, or severe

Eligibility Criteria

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 85 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Any adult patient booked for elective surgery requiring orotracheal intubation with a double lumen endotracheal tube.

Exclusion Criteria:

  1. Any patient with cervical spine abnormalities.
  2. Any patients with known or probable difficult airways.
  3. Any patient requiring rapid sequence induction.
Contacts and Locations

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01488695

Contact: Timothy Turkstra, MD 519685-8500 ext 35677

Canada, Ontario
London Health Sciences Center University Hospital
London, Ontario, Canada, N6A5A5
Victoria Hospital Not yet recruiting
London, Ontario, Canada, N6A5A5
Sponsors and Collaborators
Lawson Health Research Institute
Principal Investigator: Timothy P Turkstra University of Western Ontario, Canada
More Information

Responsible Party: Timothy Turkstra, Staff anesthesiologist and Associate Professor, Lawson Health Research Institute
ClinicalTrials.gov Identifier: NCT01488695     History of Changes
Other Study ID Numbers: 18478
First Posted: December 8, 2011    Key Record Dates
Last Update Posted: September 8, 2016
Last Verified: September 2016

Keywords provided by Timothy Turkstra, Lawson Health Research Institute:
double lumen tube