Presented in abstract form at The British Small Animal Veterinary Association Congress, April 2010, Birmingham, UK, and in poster format at the European College of Veterinary Surgeons Congress, July 2010, Helsinki, Finland.
The effect of cuff presence and cuff inflation on airway pressure in a canine tracheostomy tube model
Article first published online: 23 DEC 2013
© Veterinary Emergency and Critical Care Society 2013
Journal of Veterinary Emergency and Critical Care
Volume 24, Issue 2, pages 182–187, March/April 2014
How to Cite
Wignall, J. R. and Baines, S. J. (2014), The effect of cuff presence and cuff inflation on airway pressure in a canine tracheostomy tube model. Journal of Veterinary Emergency and Critical Care, 24: 182–187. doi: 10.1111/vec.12129
- Issue published online: 16 APR 2014
- Article first published online: 23 DEC 2013
- Manuscript Accepted: 7 NOV 2013
- Manuscript Received: 30 MAY 2012
- temporary patent airway;
To evaluate the effect of cuff presence and cuff inflation on airway pressure in an inspiratory model of canine tracheostomy.
Ex vivo experimental study. Cadaver tracheas from Beagle dogs were attached aborally to a vacuum. Airway pressure and flow rate was measured before and after placement of tracheostomy tubes.
Adult uncuffed tubes and cuffed tracheostomy tubes (sizes 4, 6, 8, and 10) were placed within tracheas. Cuffs were investigated without inflation and at maximum cuff inflation. Airway pressure was measured at constant airflow rates at 30 and 60 L/min.
Measurements and Main Results
At set flow rates, airway pressures of tracheostomy tubes were compared to the intact trachea. A size 4 uncuffed tracheostomy tube showed the lowest airway pressure and a size 4 cuffed trachestomy tube with inflation showed the highest airway pressures. For sizes 6, 8, and 10 tubes, the presence of a cuff with and without inflation significantly increased airway pressure. Inflation of a cuff always significantly increased airway pressure. Similar pressure is seen between sizes 4 and 6 uncuffed tubes.
Cuffed tracheostomy tubes should not be used unless specifically indicated due to increased airway pressure.