Universität zu Köln

Wetsch, Wolfgang A., Schroeder, Daniel C., Finke, Simon-Richard, Sander, David, Ecker, Hannes, Boettiger, Bernd W. and Herff, Holger (2022). A special oropharyngeal oxygenation device to facilitate apneic oxygenation in comparison to high flow oxygenation devices. Med. Gas Res., 12 (1). S. 28 - 32. MUMBAI: WOLTERS KLUWER MEDKNOW PUBLICATIONS. ISSN 2045-9912

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Abstract

Oxygen application and apneic oxygenation may reduce the risk of hypoxemia due to apnea during awake fiberoptic intubation or failed endotracheal intubation. High flow devices are recommended, but their effect compared to moderate deep oropharyngeal oxygen application is unknown. Designed as an experimental manikin trial, we made a comparison between oxygen application via nasal prongs at 10 L/min (control group), applying oxygen via oropharyngeal oxygenation device (at 10 L/min), oxygen application via high flow nasal oxygen with 20 L/min and 90% oxygen (20 L/90% group), oxygen application via high flow nasal oxygen with 60 L/min and 45% oxygen (60 L/45% group), and oxygen application via sealed face mask with a special adapter to allow for fiberoptic entering of the airway. We preoxygenated the lung of a manikin and measured the decrease in oxygen level during the following 20 minutes for each way of oxygen application. Oxygen levels fell from 97 +/- 1% at baseline to 75 +/- 1% in control group, and to 86 +/- 1% in oropharyngeal oxygenation device group. In the high flow nasal oxygen group, oxygen level dropped to 72 +/- 1% in the 20 L/90% group and to 44 +/- 1% in the 60 L/45% group. Oxygen level remained at 98 +/- 0% in the face mask group. In conclusion, in this manikin simulation study of apneic oxygenation, oxygen insufflation using a sealed face mask kept oxygen levels in the test lung at 98% over 20 minutes, oral oxygenation device led to oxygen levels at 86%, whereas all other methods resulted in the decrease of oxygen levels below 75%.</p>

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Wetsch, Wolfgang A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schroeder, Daniel C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Finke, Simon-Richard UNSPECIFIED UNSPECIFIED UNSPECIFIED Sander, David UNSPECIFIED UNSPECIFIED UNSPECIFIED Ecker, Hannes UNSPECIFIED UNSPECIFIED UNSPECIFIED Boettiger, Bernd W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Herff, Holger UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-668237
DOI:	10.4103/2045-9912.323536
Journal or Publication Title:	Med. Gas Res.
Volume:	12
Number:	1
Page Range:	S. 28 - 32
Date:	2022
Publisher:	WOLTERS KLUWER MEDKNOW PUBLICATIONS
Place of Publication:	MUMBAI
ISSN:	2045-9912
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language TRACHEAL INTUBATION; AWAKE INTUBATION; MANAGEMENT; DIFFICULT; VENTILATION; INDUCTION; PATIENT Multiple languages Medicine, Research & Experimental Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/66823