The case for a 3rd generation supraglottic airway device facilitating direct vision placement

Although 1st and 2nd generation supraglottic airway devices (SADs) have many desirable features, they are nevertheless inserted in a similar ‘blind’ way as their 1st generation predecessors. Clinicians mostly still rely entirely on subjective indirect assessments to estimate correct placement which...

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Main Authors: Van Zundert, AAJ, Kumar, CM, Van Zundert, TCRV, Gatt, SP, Pandit, JJ
Format: Journal article
Language:English
Published: Springer 2020
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author Van Zundert, AAJ
Kumar, CM
Van Zundert, TCRV
Gatt, SP
Pandit, JJ
author_facet Van Zundert, AAJ
Kumar, CM
Van Zundert, TCRV
Gatt, SP
Pandit, JJ
author_sort Van Zundert, AAJ
collection OXFORD
description Although 1st and 2nd generation supraglottic airway devices (SADs) have many desirable features, they are nevertheless inserted in a similar ‘blind’ way as their 1st generation predecessors. Clinicians mostly still rely entirely on subjective indirect assessments to estimate correct placement which supposedly ensures a tight seal. Malpositioning and potential airway compromise occurs in more than half of placements. Vision-guided insertion can improve placement. In this article we propose the development of a 3rd generation supraglottic airway device, equipped with cameras and fiberoptic illumination, to visualise insertion of the device, enable immediate manoeuvres to optimise SAD position, verify whether correct 1st and 2nd seals are achieved and check whether size selected is appropriate. We do not provide technical details of such a ‘3rd generation’ device, but rather present a theoretical analysis of its desirable properties, which are essential to overcome the remaining limitations of current 1st and 2nd generation devices. We also recommend that this further milestone improvement, i.e. ability to place the SAD accurately under direct vision, be eligible for the moniker ‘3rd generation’. Blind insertion of SADs should become the exception and we anticipate, as in other domains such as central venous cannulation and nerve block insertions, vision-guided placement becoming the gold standard.
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spelling oxford-uuid:0281dc43-f357-462c-83d7-c1f9173f9d0d2022-03-26T08:41:08ZThe case for a 3rd generation supraglottic airway device facilitating direct vision placementJournal articlehttp://purl.org/coar/resource_type/c_b239uuid:0281dc43-f357-462c-83d7-c1f9173f9d0dEnglishSymplectic ElementsSpringer2020Van Zundert, AAJKumar, CMVan Zundert, TCRVGatt, SPPandit, JJAlthough 1st and 2nd generation supraglottic airway devices (SADs) have many desirable features, they are nevertheless inserted in a similar ‘blind’ way as their 1st generation predecessors. Clinicians mostly still rely entirely on subjective indirect assessments to estimate correct placement which supposedly ensures a tight seal. Malpositioning and potential airway compromise occurs in more than half of placements. Vision-guided insertion can improve placement. In this article we propose the development of a 3rd generation supraglottic airway device, equipped with cameras and fiberoptic illumination, to visualise insertion of the device, enable immediate manoeuvres to optimise SAD position, verify whether correct 1st and 2nd seals are achieved and check whether size selected is appropriate. We do not provide technical details of such a ‘3rd generation’ device, but rather present a theoretical analysis of its desirable properties, which are essential to overcome the remaining limitations of current 1st and 2nd generation devices. We also recommend that this further milestone improvement, i.e. ability to place the SAD accurately under direct vision, be eligible for the moniker ‘3rd generation’. Blind insertion of SADs should become the exception and we anticipate, as in other domains such as central venous cannulation and nerve block insertions, vision-guided placement becoming the gold standard.
spellingShingle Van Zundert, AAJ
Kumar, CM
Van Zundert, TCRV
Gatt, SP
Pandit, JJ
The case for a 3rd generation supraglottic airway device facilitating direct vision placement
title The case for a 3rd generation supraglottic airway device facilitating direct vision placement
title_full The case for a 3rd generation supraglottic airway device facilitating direct vision placement
title_fullStr The case for a 3rd generation supraglottic airway device facilitating direct vision placement
title_full_unstemmed The case for a 3rd generation supraglottic airway device facilitating direct vision placement
title_short The case for a 3rd generation supraglottic airway device facilitating direct vision placement
title_sort case for a 3rd generation supraglottic airway device facilitating direct vision placement
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