NCT02305667

Brief Summary

Introduction: Compared with the Macintosh laryngoscopy (MAC), the videolaryngoscopes (VL) provide superior glottis views and longer times to double-lumen tube (DLT) intubation. We hypothesize that the use of the King Vision™ (KVL) and the Airtraq® VLs may reduce the time for DLT intubation compared with the Glidescope® (GVL) and MAC in patients undergoing thoracic procedures. Methods: One hundred-forty patients who will be scheduled for elective thoracic procedures using the DLT for one-lung ventilation will be randomly assigned to one of four groups (n=35 per group) to intubate using the MAC, GVL, Airtraq®, or KVL. Time to DLT intubation, glottis view, ease of intubation, number of optimization maneuvers, and failure to intubation (\>150 s.) will be recorded.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
133

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started May 2015

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 27, 2014

Completed
5 days until next milestone

First Posted

Study publicly available on registry

December 2, 2014

Completed
5 months until next milestone

Study Start

First participant enrolled

May 1, 2015

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2016

Completed
Last Updated

January 24, 2017

Status Verified

January 1, 2017

Enrollment Period

1.6 years

First QC Date

November 27, 2014

Last Update Submit

January 20, 2017

Conditions

Keywords

LaryngoscopeMacintoshGlidescope®King Vision™Airtraq®intubationdouble lumen tube

Outcome Measures

Primary Outcomes (1)

  • Time to the duration of endobronchial intubation

    defined as the time from when the laryngoscope entered between the patient's lips until successful DLT placement (regardless of the number of attempts).\[

    3 minutes after laryngoscopy

Secondary Outcomes (7)

  • best obtained glottis view during laryngoscopy

    30 sec after laryngosocopy

  • ease of endobronchial intubation

    30 sec after laryngosocopy

  • number of optimization maneuvers

    150 sec after laryngosocopy

  • number of the 'backwards upwards rightwards pressure' (BURP) maneuver

    150 sec after laryngosocopy

  • failure rate for double lumen tube intubation

    150 sec after laryngosocopy

  • +2 more secondary outcomes

Study Arms (4)

Macintosh

PLACEBO COMPARATOR

Double lumen tube intubation using Macintosh laryngoscope

Device: Macintosh

Glidescope®

ACTIVE COMPARATOR

Double lumen tube intubation using Glidescope® videolaryngoscope

Device: Glidescope®

Airtraq®

ACTIVE COMPARATOR

Double lumen tube intubation using Airtraq® videolaryngoscope

Device: Airtraq®

King Vision™

ACTIVE COMPARATOR

Double lumen tube intubation using King Vision™ videolaryngoscope

Device: King Vision™

Interventions

MacintoshDEVICE

double lumen tube intubation using the Macintosh laryngoscope

Macintosh

double lumen tube intubation using the Glidescope® videolaryngoscope. The distal portion of a left-sided DLT will be angulated to the right concealing the distal orifice of the tracheal lumen. The DLT will be advanced directly through the vocal cords after initial 90° clockwise rotation, the stylet will be removed, and then the DLT will be advanced gently while rotating in a 180° couterclockwise direction

Glidescope®
Airtraq®DEVICE

double lumen tube intubation using the Airtraq® videolaryngoscope.

Airtraq®

double lumen tube intubation using the King Vision™ videolaryngoscope. the distal 21 cm of the left-sided DLT will be bended to replicate the curve of the non-channeled blade and the proximal curve of the DLT remains directed to the right side. Then, after initial 90° clockwise rotation, the bronchial cuff passes through the vocal cords, the stylet of the DLT will be withdrawn and the DLT will be rotated 180°counterclockwise while advancing the DLT to the desired depth.

King Vision™

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • American Society of Anesthesiologists' physical status II/III
  • Elective thoracic procedures

You may not qualify if:

  • New York Heart Association (NYHA) functional classification class III to IV
  • forced expiratory volume in 1 s (FEV1) less than 50% of predicted values
  • forced vital capacity (FVC) less than 50% of predicted values
  • severe asthma
  • pregnancy
  • risk of regurgitation
  • risk of pulmonary aspiration
  • history of gastro-esophageal reflux
  • body mass index more than 40 kg m-2
  • anticipated difficult intubation
  • preoperative postoperative ventilatory support
  • planned postoperative ventilatory support

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

King Fahd Hospital of the University

Khobar, Eastern Province, 31952, Saudi Arabia

Location

Study Officials

  • Mohamed R El Tahan, MD

    Associate Professor at Anesthesiology Dept

    PRINCIPAL INVESTIGATOR
  • Alaa khidr, MD

    Imam Abdulrahman Bin Faisal University

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 27, 2014

First Posted

December 2, 2014

Study Start

May 1, 2015

Primary Completion

December 1, 2016

Study Completion

December 1, 2016

Last Updated

January 24, 2017

Record last verified: 2017-01

Locations