King Vision® and GlideScope® in Difficult Airways

Airway Management Clinical Trial

Official title:

A Comparison of the King Vision® Channeled, King Vision® Non-Channeled, and Glidescope® Video Intubation Systems in Patients at Risk for Difficult Intubation - A Pilot Study

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03685968
• Other study ID #: HSC-MS-13-0024
• Status: Completed
• Phase: N/A
• Start date: March 6, 2013
• Est. completion date: December 17, 2015

Study information

• Verified date: January 2019
• Source: The University of Texas Health Science Center, Houston
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

There are several advantages of video laryngoscopy; especially their ability to provide superior glottis visualization, as compared to traditional laryngoscopy.1-3 The purpose of this three arm study was to compare the safety and efficacy of the King Vision® Video Intubation Systems (AMBU-King Systems, Denmark) to the Cobalt GlideScope® (Verathon Medical Inc., USA) in patients with anticipated difficult airways.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 225
• Est. completion date: December 17, 2015
• Est. primary completion date: November 17, 2015
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Over 18 years of age

• Mallampati III-IV

• Neck circumference > 43cm

• Reduced mouth opening (< 4cm) or 3 Finger breath's (patient's own)

• Thyromental distance < 6cm

Exclusion Criteria:

• Mallampati I-II

• Neck circumference < 43cm

• Documented 'easy' intubation

• Previous history of failed intubation and failed bag-mask ventilation

• Under 18 years of age

• ASA IV

• Known unstable cervical spine injury

• Presentation for an emergency surgical procedure

Related Conditions & MeSH terms

• Airway Management

Intervention

Device:
• Video laryngoscopes
Patients were randomized into one of the three groups through a computer generated randomization schedule. Patients in group A (N= 75) will be intubated using the GlideScope® AVL, patients in group B (N= 75) will be intubated using the King Vision Channeled VL; patients in group C (N=75) will be intubated using the King Vision Video Laryngoscope with Standard (non-channeled) Blade. Patients will only be tested with one device. All patients will be intubated using a conventional ETT.

Locations

Country	Name	City	State
n/a

Sponsors (2)

Lead Sponsor	Collaborator
The University of Texas Health Science Center, Houston	King Systems Corporation

References & Publications (3)

Hagberg C, Matuszczak M, Ellis S, et al. A randomized comparison of laryngoscopy techniques using the video laryngoscope and the traditional Macintosh laryngoscope in obese patients. Anesthesiology 2005; 103: A1420.

Hagberg C, Vogt-Harenkamp C, Bogomolny Y, et al. A comparison of laryngoscopy techniques using the video laryngoscope and the traditional Macintosh laryngoscope in potentially difficult to intubate patients. Anesth Analg 2005; 100: S-212.

Hagberg CA, Iannucci D, Goodrich A. A comparison of the glottic view obtained with the Macintosh Video Laryngoscope in anesthetized, paralyzed, apneic patients. Direct view vs video monitor. Anesthesiology 2003; 103: A1501.

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	Final Intubation Time for All 3 Video Laryngoscopes - GSAVL, KVChVL and KVNChVL	Total time for placing the endotracheal tube (ETT) through the vocal cords	During laryngoscopy and endotracheal tube placement
Primary	Overall Successful Tracheal Intubation for All 3 Video Laryngoscopes - GSAVL, KVChVL and KVNChVL	The overall intubation success rates for all 3 video laryngoscopes - GSAVL, KVChVL and KVNChVL	During laryngoscopy and endotracheal tube placement
Secondary	First-attempt Successful Intubation for All 3 Video Laryngoscopes - GSAVL, KVChVL and KVNChVL	The overall first-attempt success rates for all 3 video laryngoscopes - GSAVL, KVChVL and KVNChVL	During laryngoscopy and endotracheal tube placement