Universität zu Köln

Mitterlechner, Thomas, Herff, Holger, Hammel, Christian W., Braun, Patrick, Paal, Peter, Wenzel, Volker and Benzer, Arnulf (2015). A DUAL-USE LARYNGOSCOPE TO FACILITATE APNEIC OXYGENATION. J. Emerg. Med., 48 (1). S. 103 - 108. NEW YORK: ELSEVIER SCIENCE INC. ISSN 1090-1280

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Abstract

Background: In preoxygenated patients, time until oxygen saturation drops can be extended by insufflating oxygen into their airways, thus oxygenating them apneically. Objectives: To compare different methods of apneic oxygenation. Methods: A noncommercial dual-use laryngoscope with an internal lumen in its blade was used to provide oxygen insufflation into a simulated laryngeal space during intubation. In this experimental study, oxygen insufflation via the dual-use laryngoscope was compared with no oxygen insufflation, with nasal oxygen insufflation, and with direct intratracheal oxygen insufflation. In a preoxygenated test lung of a manikin, oxygen percentage decrease was measured over a 20-min observation period for each method of oxygen application. Results: Oxygen percentage in the test lung dropped from 97% to 37 +/- 1% in the control group (p < 0.001 compared to all other groups) and to 68 +/- 1% in the nasal insufflation group (p < 0.001 compared to all other groups). Oxygen percentage remained over 90% in both the direct intratracheal insufflation group (96 +/- 0%) and the laryngoscope blade insufflation group (94 +/- 1%) (p < 0.01 between the latter two groups). Conclusions: Simulating apneic oxygenation in a preoxygenated manikin, deep laryngeal oxygen insufflation via the dual-use laryngoscope kept oxygen percentage in the test lung above 90%, and was more effective than oxygen insufflation via nasal prongs. (C) 2015 Elsevier Inc.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Mitterlechner, Thomas UNSPECIFIED UNSPECIFIED UNSPECIFIED Herff, Holger UNSPECIFIED UNSPECIFIED UNSPECIFIED Hammel, Christian W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Braun, Patrick UNSPECIFIED UNSPECIFIED UNSPECIFIED Paal, Peter UNSPECIFIED UNSPECIFIED UNSPECIFIED Wenzel, Volker UNSPECIFIED UNSPECIFIED UNSPECIFIED Benzer, Arnulf UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-417994
DOI:	10.1016/j.jemermed.2014.06.061
Journal or Publication Title:	J. Emerg. Med.
Volume:	48
Number:	1
Page Range:	S. 103 - 108
Date:	2015
Publisher:	ELSEVIER SCIENCE INC
Place of Publication:	NEW YORK
ISSN:	1090-1280
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language AIRWAY; PREOXYGENATION; DESATURATION; MANAGEMENT Multiple languages Emergency Medicine Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/41799