Comparison of Tracheal Intubation Using the Storz’s C-Mac D-bladeTM Video-Laryngoscope Aided by TruflexTM Articulating Stylet and the PortexTM Intubating Stylet

Abstract

Background:Tracheal intubation using Storz’s C-Mac D-bladeTM videolaryngoscope is associated with difficult negotiation of the tracheal tube into the glottis due to steep angulation of its blade.Objectives:In this study, we hypothesized that TruflexTM articulating stylet with its ability to dynamically tailor the ETT shape to patients’ oropharyngeal anatomy would be better suited to the D-blade angulation and ease tracheal intubation compared to PortexTM intubation stylet.Patients and Methods:Following approval by the Ethical Issues Committee and informed consent, 218 ASA I and II patients of either sex were enrolled in this interventional, single-blind, randomized controlled trial. Tracheal intubation was performed following a uniform general anesthetic technique using the Storz’s C-Mac D-bladeTM videolaryngoscope aided by either TruflexTM articulating stylet or the PortexTM intubation stylet by an experienced anesthesiologist. The outcome measures included success or failure to intubate in the first attempt, total intubation time, hemodynamic disturbances, trauma if any and user satisfaction.Results:The number of patients in whom intubation was successful in the first attempt was significantly higher by using Truflex™ articulating stylet (99.1%) compared to PortexTM intubation stylet (90.0%; P-Value = 0.003). User satisfaction grade was significantly better while using TruflexTM articulating stylet (8.5 ± 0.88) compared to the PortexTM intubation stylet (8.23 ± 0.99; P-Value = 0.035). We did not observe any significant difference in total intubation time, hemodynamic disturbances or trauma.Conclusions:Storz’s C-Mac D-bladeTM videolaryngoscope provides grade I Cormack and Lehane’s glottic view in 99.1% patients. First attempt successful tracheal intubation and user satisfaction significantly improved by TruflexTM articulating stylet compared to the PortexTM intubation stylet.

New Devices, Innovative Technologies, and Non-Standard Techniques for Airway Management: A Narrative Review

“…The Flextip (P3Medical Ltd., Bristol, UK) [12], the Parker Flex-It Directional Stylet (Parker, Highlands Ranch, CO, USA) [11], the Total Control Introducer (TCI; Through The Cords, LLC, Salt Lake City, UT, USA) [13], D-FLECT ® deflectable-tip bougie (Specialist Airway Solutions Pty Ltd., Brisbane, Australia) [14], the Truflex™ articulating stylet (Truphatek International Limited, Netanya, Israel) [15], the ProVu TM articulating Video Stylet, (Flexicare Inc., Irvine, CA, USA) [16], and the StyletScope™ fibreoptic stylet (FOS; Nihon Koden Corporation, Tokyo, Japan) [17] are examples of this type of device.…”

Oxygen insufflation via the C-MAC® video stylet increased the fraction of inspired oxygen during intubation in general anesthesia: a bench study

“…The C-MAC® video stylet (Karl-Storz SE & Co. KG, Tuttlingen, Germany) is a hybrid of a exible and rigid intubation endoscope providing a rst-attempt success rate of 80% [1]. The video stylet provides faster intubation than that with a exible optic bronchoscope [2], and due to its articulating function, higher intubation success rates than those with intubation stylets [3]. However, the oral secretion obstructing the bevel of the endotracheal tube (ETT) remains a main challenge to the visibility of the vocal cords [2,4].…”