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Pressure volume curves of paediatric laryngeal mask airways

Wallace, C. J. and Chambers, N. A. and Erb, T. O. and von Ungern-Sternberg, B. S.. (2009) Pressure volume curves of paediatric laryngeal mask airways. Anaesthesia : the official journal of the Association of Anaesthesists of Great Britain and Ireland, Vol. 64. pp. 527-531.

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Official URL: http://edoc.unibas.ch/dok/A6006531

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Abstract

Hyperinflation of the laryngeal mask airway cuff may exert high pressure on pharyngeal and laryngeal structures. In vitro data show that high intra cuff pressures may occur when inflated to only 30% of the manufacturer's recommended maximum inflation volume. We prospectively assessed the pressure volume curves of paediatric sized laryngeal mask airways (size 1-3) in 240 consecutive children (0-15 years). Following laryngeal mask airway insertion the cuff was inflated with 1-ml increments of air up to the maximum recommended by the manufacturer. After each ml cuff pressure was measured. At the end all cuff pressures were adjusted to 55 cmH(2)O. The maximum recommended volume resulted in high intracuff pressures in all laryngeal mask airway brands and sizes studied. Approximately half the maximum volume produced a cuff pressure < or = 60 cmH(2)O. This occurred in all brands and all sizes studied. We recommend that cuff manometers should be used to guide inflation in paediatric laryngeal mask airways.
Faculties and Departments:03 Faculty of Medicine > Bereich Querschnittsfächer (Klinik) > Anästhesiologie
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Querschnittsfächer (Klinik) > Anästhesiologie
UniBasel Contributors:Erb, Thomas O.
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Pulman
ISSN:0003-2409
Note:Publication type according to Uni Basel Research Database: Journal article
Last Modified:01 Feb 2013 08:46
Deposited On:01 Feb 2013 08:42

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