Clinical Trial: GlideRite® Rigid Stylet Versus Parker Flex-It Stylet

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

Official Title: GlideRite® Rigid Stylet Versus Parker Flex-It Stylet for Orotracheal Intubation by GlideScope

Brief Summary: This prospective randomized trial evaluated Parker Flex-It stylet as an alternative to manufacturer, s GlideRite® Rigid Stylet to aid intubation with the GlideScope in patients undergoing elective non-cardiac surgery that required general anesthesia with orotracheal intubation.

Detailed Summary:

The GlideScope® Ranger (GVL; Verathon Medical Inc., Bothell, WA, USA) is a novel portable, reusable video laryngoscope that has provided superior laryngeal visualization to facilitate tracheal intubation especially in the management of difficult airways; it provides indirect visualization of the glottis with a pronounced angle of 60° in the blade. It has separate monitor connected to the handle via a cable. The tip of the blade is equipped with high-resolution digital video camera, an LED light and an antifogging system.

Unlike the Macintosh laryngoscope, an indirect laryngoscope such as the GlideScope device provides a view of the glottis without the need to align the oral pharyngeal and laryngeal axes facilitating an excellent glottic visualization. However, insertion and advancement of the endotracheal tube (ETT) may be more difficult to pass through the vocal cords than direct laryngoscopy, and trauma is possible.

The GlideScope have shown to function better when used in conjunction with use of a stylet to guide insertion of endotracheal tube. The GlideRite Rigid Stylet (GRS) is a reusable rigid steel stylet, specifically designed by the manufacturer to resemble the distal part of the GVL blade for clear view of the airway, enabling quick intubation , its curvature approaches 90° with a radius of curvature of approximately 6 cm.

Various investigators have recommended different curvatures of the ETT/stylet to optimally direct it into the trachea, including matching the blade's 60° angle, configuring the ETT with a 90° bend, or using a J-shaped ETT. Other potential strategies may include the use of a flexible stylet that allows active modification of the tip of the tracheal tube during use.

The Par
Sponsor: King Saud University

Current Primary Outcome: total intubation time [ Time Frame: measured during intubation ( up to 120 seconds) ]

the time from insertion of the blade of the GlideScope into the oral airway to the appearance of end-tidal carbon dioxide (ETCO2) curve of at least 30 mmHg on the anesthesia monitor after insertion of the tracheal tube.


Original Primary Outcome: Same as current

Current Secondary Outcome: number of intubation attempts before successful intubation [ Time Frame: 5minutes ]

Original Secondary Outcome: Same as current

Information By: King Saud University

Dates:
Date Received: April 1, 2015
Date Started: May 2014
Date Completion:
Last Updated: May 6, 2015
Last Verified: May 2015