GlideScope®Video Laryngoscope for Difficult Intubation: Implication of the Size of Blade

NCT01616771 | Completed Results

• 1 other identifier: H-1111-037-385
• Study Type: interventional
• Target: 23
• Locations: 0 countries
• Sites: N/A

Brief Summary

The investigators evaluated the usefulness of the Glidescope(GVL) compared with direct laryngoscopy in patients whose airway management are anticipated difficult (C\&L grade ≥3) by comparing the laryngoscopic view. Also, the investigators compared the effectiveness of smaller-size blade of GVL (GVLs) with standard blade of GVL selected by patient's weight (GVLw) in the same patients.

Conditions

Intubation; Difficult

Keywords

laryngoscopes

Outcome Measures

Primary Outcomes (1)

• The Differences in the Glottis View (C&L Grade) of Macintosh Laryngoscope and GVL Selected by Weight.

  Glottis view was scored using C\&L grade by Macintosh laryngoscope and GVL selected by weight, and compared each other. We used modified C\&L grade: grade 1, all or most of the glottic aperture was visible; grade 2a, posterior cords and cartilage visible; grade 2b, only posterior cartilage visible; grade 3a, epiglottis visible and can be lifted; grade 3b, epiglottis adherent to the posterior pharynx; and grade 4, the epiglottis could not be visualized. For the statistical analysis, the modified C\&L grade was converted to an ordinal scale; grade 1 to 1, grade 2a to 2, grade 2b to 3, grade 3a to 4, grade 3b to 5, and grade 4 to 6. Therefore, score range for the data reported in the table was between 1 and 6, with 1 representing best view and 6 representing no view.

  up to 1 day of surgery

Secondary Outcomes (1)

• The Differences in the Glottis View (C&L Grade) of GVL Selected by Weight and Smaller Sized GVL

  up to 1day of surgery

Study Arms (1)

glottis view assessment

OTHER

Glottis view assessment using Macintosh laryngoscope \& GVL selected by weight \& smaller sized GVL in single patient

Device: Macintosh laryngoscope; Device: GVL selected by weight; Device: smaller sized GVL

Interventions

Macintosh laryngoscope DEVICE

Glottis view assessment by direct visualization using Macintosh laryngoscope

glottis view assessment

GVL selected by weight DEVICE

Glottis view assessment by GVL selected by weight which is usually selected first

Also known as: GlideScope® videolaryngoscopy selected by weight

glottis view assessment

smaller sized GVL DEVICE

Glottis view assessment by GVL which is smaller in one size than GVL selected by age

Also known as: smaller sized GlideScope® videolaryngoscopy

glottis view assessment

Eligibility Criteria

• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

• Patients whose C\&L grade were over 3 in previous anesthetic records.

You may not qualify if:

• Patients with pulmonary aspiration, increased intracranial pressure, and severe cardiovascular disease

Sponsors & Collaborators

• Seoul National University Hospital: lead

Results Point of Contact

• Title: Jin-Tae Kim
• Organization: Seoul National University Hospital

jintae73@gmail.com

82-10-6260-8490

Study Officials

• Jin-Tae Kim, professor

  Seoul National University Hospital

  STUDY DIRECTOR

Publication Agreements

• PI is Sponsor Employee: No
• Restrictive Agreement: No

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: professor

Study Record Dates

• First Submitted: April 30, 2012
• First Posted: June 12, 2012
• Study Start: February 1, 2011
• Primary Completion: January 1, 2012
• Study Completion: January 1, 2012
• Last Updated: November 4, 2014
• Results First Posted: November 3, 2014

Record last verified: 2014-11