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Videolaryngoscopes differ substantially in illumination of the oral cavity: A manikin study

BACKGROUND AND AIMS: Insufficient illumination of the oral cavity during endotracheal intubation may result in suboptimal conditions. Consequently, suboptimal illumination and laryngoscopy may lead to potential unwanted trauma to soft tissues of the pharyngeal mucosa. We investigated illumination of...

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Autores principales: Pieters, Barbe MA, van Zundert, André AJ
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4870945/
https://www.ncbi.nlm.nih.gov/pubmed/27212719
http://dx.doi.org/10.4103/0019-5049.181593
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author Pieters, Barbe MA
van Zundert, André AJ
author_facet Pieters, Barbe MA
van Zundert, André AJ
author_sort Pieters, Barbe MA
collection PubMed
description BACKGROUND AND AIMS: Insufficient illumination of the oral cavity during endotracheal intubation may result in suboptimal conditions. Consequently, suboptimal illumination and laryngoscopy may lead to potential unwanted trauma to soft tissues of the pharyngeal mucosa. We investigated illumination of the oral cavity by different videolaryngoscopes (VLS) in a manikin model. METHODS: We measured light intensity from the mouth opening of a Laerdal intubation trainer comparing different direct and indirect VLS at three occasions, resembling optimal to less-than-optimal intubation conditions; at the photographer's dark room, in an operating theatre and outdoors in bright sunlight. RESULTS: Substantial differences in luminance were detected between VLS. The use of LED light significantly improved light production. All VLS produced substantial higher luminance values in a well-luminated environment compared to the dark photographer's room. The experiments outside-in bright sunlight-were interfered with by direct sunlight penetration through the synthetic material of the manikin, making correct measurement of luminance in the oropharynx invalid. CONCLUSION: Illumination of the oral cavity differs widely among direct and indirect VLS. The clinician should be aware of the possibility of suboptimal illumination of the oral cavity and the potential risk this poses for the patient.
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spelling pubmed-48709452016-05-20 Videolaryngoscopes differ substantially in illumination of the oral cavity: A manikin study Pieters, Barbe MA van Zundert, André AJ Indian J Anaesth Original Article BACKGROUND AND AIMS: Insufficient illumination of the oral cavity during endotracheal intubation may result in suboptimal conditions. Consequently, suboptimal illumination and laryngoscopy may lead to potential unwanted trauma to soft tissues of the pharyngeal mucosa. We investigated illumination of the oral cavity by different videolaryngoscopes (VLS) in a manikin model. METHODS: We measured light intensity from the mouth opening of a Laerdal intubation trainer comparing different direct and indirect VLS at three occasions, resembling optimal to less-than-optimal intubation conditions; at the photographer's dark room, in an operating theatre and outdoors in bright sunlight. RESULTS: Substantial differences in luminance were detected between VLS. The use of LED light significantly improved light production. All VLS produced substantial higher luminance values in a well-luminated environment compared to the dark photographer's room. The experiments outside-in bright sunlight-were interfered with by direct sunlight penetration through the synthetic material of the manikin, making correct measurement of luminance in the oropharynx invalid. CONCLUSION: Illumination of the oral cavity differs widely among direct and indirect VLS. The clinician should be aware of the possibility of suboptimal illumination of the oral cavity and the potential risk this poses for the patient. Medknow Publications & Media Pvt Ltd 2016-05 /pmc/articles/PMC4870945/ /pubmed/27212719 http://dx.doi.org/10.4103/0019-5049.181593 Text en Copyright: © Indian Journal of Anaesthesia http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open access article distributed under the terms of the Creative Commons Attribution NonCommercial ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non commercially, as long as the author is credited and the new creations are licensed under the identical terms.
spellingShingle Original Article
Pieters, Barbe MA
van Zundert, André AJ
Videolaryngoscopes differ substantially in illumination of the oral cavity: A manikin study
title Videolaryngoscopes differ substantially in illumination of the oral cavity: A manikin study
title_full Videolaryngoscopes differ substantially in illumination of the oral cavity: A manikin study
title_fullStr Videolaryngoscopes differ substantially in illumination of the oral cavity: A manikin study
title_full_unstemmed Videolaryngoscopes differ substantially in illumination of the oral cavity: A manikin study
title_short Videolaryngoscopes differ substantially in illumination of the oral cavity: A manikin study
title_sort videolaryngoscopes differ substantially in illumination of the oral cavity: a manikin study
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4870945/
https://www.ncbi.nlm.nih.gov/pubmed/27212719
http://dx.doi.org/10.4103/0019-5049.181593
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