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Development of a new system for guidewire-assisted tracheal intubation: Manikin and cadaver evaluation

Citation

Dhara, SS and McGlone, DJ and Skinner, MW, Development of a new system for guidewire-assisted tracheal intubation: Manikin and cadaver evaluation, Anaesthesia, 71, (1) pp. 44-49. ISSN 0003-2409 (2016) [Refereed Article]

DOI: doi:10.1111/anae.13282

Abstract

Guided intubation using a tracheal tube and semi-rigid introducer is associated with technical difficulties, failure and traumatic complications. We describe the development of a new system of guidewire-assisted tracheal intubation that may circumvent these problems. A reinforced silicone tracheal tube was modified with a guide channel built inside its wall, and a nitinol non-kinking guidewire was matched to this channel. Both anterograde and retrograde tracheal intubation were evaluated in a test rig, an airway manikin and then in preserved and fresh cadavers. There was minimal resistance to passage of the guidewire through the guide channel when the modified tube was in an anatomical configuration, in contrast to moderate resistance when an Airway Exchange Catheter was passed through a PVC tracheal tube. Intubation using the new equipment required increased force in the manikin and preserved cadavers, but minimal force in fresh cadavers. Resistance to tracheal tube advancement in preserved cadavers was overcome by withdrawal followed by 90 rotation, but this manoeuvre was not required in fresh cadavers. We suggest that the combination of the modified tracheal tube and matching guidewire may allow easy and reliable single-step guided tracheal intubation when used in patients.

Item Details

Item Type:Refereed Article
Research Division:Medical and Health Sciences
Research Group:Clinical Sciences
Research Field:Surgery
Objective Division:Health
Objective Group:Clinical Health (Organs, Diseases and Abnormal Conditions)
Objective Field:Surgical Methods and Procedures
Author:Skinner, MW (Dr Marcus Skinner)
ID Code:119779
Year Published:2016
Deposited By:Medicine (Discipline)
Deposited On:2017-08-04
Last Modified:2017-08-04
Downloads:0

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