Comparison of Direct Laryngoscopy, Truview EVO2 and Glidescope in Pediatric Patients

2014-07-23 21:11:38 | BioPortfolio


The purpose of this study is to compare the effectiveness of two novel videolaryngoscope systems, the Glidescope and the Truview PCD against standard direct laryngoscopy (DL) in pediatric patients. The investigators primary hypothesis is that the use of videolaryngoscope devices, Glidescope and Truview provide better laryngeal views in pediatric patients as measured by Cormack and ehane (C&L) (1 to 4, 4 the worst), without increasing the time taken to intubate (TTI), compared with direct laryngoscopy (DL).

The investigators secondary hypotheses are that the use of Glidescope and Truview PCD provoke less hemodynamic response and fewer episodes of de-saturation in pediatric patients.


Advances in airway management have led to development on videolaryngoscopy devices including the Glidescope® (Verathon Inc, Bothwell, USA), the AWD® (Pentax Corporation, Tokio, Japan) and most recently the Truview PCD (Truphatek International Ltd, Netanya, Israel). The use of videolaryngoscopy devices in adults have demonstrated some adventages including, minimal trauma on the airway and better view of the glottis.

The Glidescope is designed with a 60º angle and a camera on the inferior aspect just at the inflection point. The view is obtained anteriorly and the camera is located remote from the glottis providing a good visual field. The video image is displayed on a Liquid Crystal Display (LCD), with electronic recording available. Despite a good experience using Glidescope in adults, few studies have been published in pediatric patients. Kim et al. in a randomized study comparing the use of Glidescope with direct laryngoscopy in children, demonstrated better or equal laryngoscopic view with longer time for intubation using the Glidescope (1). Despite a good view of the glottis, some problems associated with positioning the endotracheal tube has been described in adults. Cooper reported two cases of adult patients with pharyngeal injuries using glidescope (2). No cases associated with complications have been reported on pediatric population.

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Subject), Primary Purpose: Supportive Care




Macintosh blade, Glidescope, Truview PCD


Cleveland Clinic
United States




Outcomes Research Consortium

Results (where available)

View Results


Published on BioPortfolio: 2014-07-23T21:11:38-0400

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Pediatrics is the general medicine of childhood. Because of the developmental processes (psychological and physical) of childhood, the involvement of parents, and the social management of conditions at home and at school, pediatrics is a specialty. With ...

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