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Different Stylet Angles for Orotracheal Intubation Using Glidescope® Video Laryngoscope in Children

Clinical Comparison of Different Stylet Angles for Orotracheal Intubation Using Glidescope® Video Laryngoscope in Children

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02952690
Enrollment
120
Registered
2016-11-02
Start date
2016-12-31
Completion date
2017-04-30
Last updated
2018-02-19

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

Conditions

Intubation

Brief summary

The purpose of this study is to evaluate the feasibility of endotracheal intubation via glidescope videolaryngoscope (GVL) using different curve of stylet in 120 children aged between 1 and 5 year old.

Detailed description

Pediatric patients aged 1-5 year old are randomly assigned to one of two groups; standard curve (S) and tip-manipulated curve (T) groups. After routine anesthetic induction, endotracheal intubation is performed with GVL. Size of GVL blade is selected according to weight; GVL 0: \<1.5kg, GVL 1:1.5-3.6kg, GVL 2: 1.8-10kg, GVL 2.5: 10-28kg). Before intubation, stylet curve is differently manipulated according to group. The style is curved in accordance with the curve of GVL blade in S group, whereas the distal tip of style is additionally bended to the left (15-20 degree) in T group. Time from visualization of glottis with GVL to approaching of endotracheal tube to glottis, and time to completion of intubation are measured. In addition, the easiness of intubation is assessed using Visual Analogue Scale (0: extremely easy, 10: extremely difficult) and will be compared in both groups.

Interventions

DEVICEGlidescope® with tip manipulated stylet

The intubating style is curved in accordance with the curve of GVL blade and the distal tip of style is additionally bended to the left (15-20 degree)

DEVICEGlidescope® with standard-curved tip

The style is curved in accordance with the curve of GVL blade

Sponsors

Seoul National University Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
1 Years to 5 Years
Healthy volunteers
Yes

Inclusion criteria

1. children aged between 1 and 5 years who are scheduled for elective surgery 2. American Society of Anesthesiologist physical status I, II

Exclusion criteria

1. History of asthma 2. Active upper respiratory infection 3. Significant cardiopulmonary disease

Design outcomes

Primary

MeasureTime frameDescription
Time to tracheal intubationup to 3 min after insertion of GVLFrom the insertion of GVL to completion of endotracheal intubation

Secondary

MeasureTime frameDescription
Time to approaching of endotracheal tube tip to glottisup to 3 min after insertion of GVLFrom the insertion of GVL to approaching of endotracheal tube tip to glottis
Number of attempt for glottis passage of endotracheal tubeup to 3 min after insertion of GVL
The change in stylet angleup to 3 min after insertion of GVLThe number of additional manipulation of stylet for success of endotracheal intubation
Visual analogue scale for the easiness of endotracheal intubationup to 3 min after insertion of GVLMeasurement of the easiness of endotracheal intubation
Successful endotracheal intubation in 30 secondsup to 3 min after insertion of GVLSuccess or failure in completion of endotracheal intubation in 30 seconds

Countries

South Korea

Outcome results

None listed

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