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Effect of catheter design on tracheal pressures during tracheal gas insufflation.

John Dingley

Eur J Anaesthesiol, Volume: 20, Issue: 9, Pages: 740 - 744

Swansea University Author: John Dingley

Abstract

BACKGROUND AND OBJECTIVE:This study investigated the distribution of pressures within a model trachea, produced by five different tracheal gas insufflation devices. The aim was to suggest a suitable design of a tracheal gas insufflation device for clinical use.METHODS:Each device was tested using in...

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Published in: Eur J Anaesthesiol
Published: 2003
URI: https://cronfa.swan.ac.uk/Record/cronfa27500
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Abstract: BACKGROUND AND OBJECTIVE:This study investigated the distribution of pressures within a model trachea, produced by five different tracheal gas insufflation devices. The aim was to suggest a suitable design of a tracheal gas insufflation device for clinical use.METHODS:Each device was tested using insufflation flow rates of 5 and 10 L min(-1). For each flow rate, the pressure within the tracheal model was measured at 33 fixed points.RESULTS:The Boussignac tracheal tube produced the most even pressure distribution, while a reverse-flow catheter produced pressure changes of the smallest magnitude.CONCLUSIONS:We suggest that catheters producing the lowest pressure changes are likely to be safer for clinical use.
College: Faculty of Medicine, Health and Life Sciences
Issue: 9
Start Page: 740
End Page: 744