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

Comparison of GlideScope Groove to Macintosh Blade for Orotracheal Intubation With Double-Lumen Endotracheal Tube: a Randomised Controlled Trial

Status

Withdrawn

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01488695

Enrollment

Registered

2011-12-08

Start date

2019-07-31

Completion date

2020-06-30

Last updated

2019-02-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Intubation, Intratracheal

Keywords

intubation, double lumen tube

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.

Interventions

DEVICEGlideScope Groove

GlideScope Groove

DEVICEControl: Macintosh blade

Control: Patients will be intubated using the Macintosh blade

Study design

Allocation

RANDOMIZED

Intervention model

SINGLE_GROUP

Primary purpose

TREATMENT

Masking

TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

18 Years to 85 Years

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.

Design outcomes

Primary

Measure	Time frame	Description
Duration of Intubation	Day 1	The intubation will be timed using a stopwatch.

Secondary

Measure	Time frame	Description
Number of intubation attempts	Day 1	Number of intubation attempts
Number of failures to intubate	Day 1	Number of failures to intubate
Use of external laryngeal pressure	Day 1	Whether or not external laryngeal pressure was needed to facilitate tracheal intubation
Laryngoscopic grade distribution	Day 1	Cormack and Lehane Grade observed during laryngoscopy
Presence of Sore throat	Day 3	Sore throat will be graded on POD #2 as none, mild, moderate, or severe

Countries

Canada

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026