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Completed

NCT Number: NCT03685968

King Vision® and GlideScope® in Difficult Airways

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.

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Key information

Conditions

Airway Management

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Video laryngoscopes

Device

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.

Primary outcomes

  1. Overall Successful Tracheal Intubation for All 3 Video Laryngoscopes - GSAVL, KVChVL and KVNChVL

    Time frame: During laryngoscopy and endotracheal tube placement

    The overall intubation success rates for all 3 video laryngoscopes - GSAVL, KVChVL and KVNChVL

Secondary outcomes

  1. First-attempt Successful Intubation for All 3 Video Laryngoscopes - GSAVL, KVChVL and KVNChVL

    Time frame: During laryngoscopy and endotracheal tube placement

    The overall first-attempt success rates for all 3 video laryngoscopes - GSAVL, KVChVL and KVNChVL

Other outcomes

  1. Final Intubation Time for All 3 Video Laryngoscopes - GSAVL, KVChVL and KVNChVL

    Time frame: During laryngoscopy and endotracheal tube placement

    Total time for placing the endotracheal tube (ETT) through the vocal cords

Sponsors and collaborators

Lead sponsor

The University of Texas Health Science Center, Houston

Other

Collaborators

  • King Systems Corporation

Registry information

Official study 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

Important dates

Study start
2013
Primary completion
2015
Study completion
2015
First posted
Sep 26, 2018
Registry last updated
Jan 8, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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