This Article  • References  • Full text PDF  • Reply to article  • Send to a friend  • Save in My Folder  • Save to citation manager  • Permissions  Citing Articles  • Citing articles on HighWire  • Contact me when this article is cited  Related Content  • Similar articles in this journal  Social Bookmarking   What's this?

Man Wah Yung, FRCS; S. L. Snowdon, FFARCS

Arch Otolaryngol. 1984;110(9):591-595.

Abstract
• One of the main results of tracheostomy is to reduce the airflow resistance and power of breathing. The airflow dynamics of three types of commonly used tracheostomy tubes were studied. A generator was used to produce a sinusoidal airflow wave to simulate normal breathing. The flow resistance and the power required to overcome this resistance were measured. A difference was observed in the flow resistance and the power of breathing between the inspiratory and expiratory phase of all the tubes. It was also observed that the Portex and Jackson tubes have a lower flow resistance and power of breathing than the similar gauge Shiley tube. This difference was due to the greater length, shorter radius of curvature, and rougher inner surface of the Shiley tube.

(Arch Otolaryngol 1984;110:591-595)

Author Affiliations
From the Departments of Otorhinolaryngology (Dr Yung) and Anaesthesia (Dr Snowdon), the University of Liverpool, Royal Liverpool Hospital, Liverpool, United Kingdom.

Footnotes
Accepted for publication Feb 22, 1984.

Read before the Otorhinolaryngological Research Society Meeting, Glasgow, England, April 15, 1983.

Reprint requests to Department of Otorhinolaryngology, University of Liverpool, Royal Liverpool Hospital, Prescot Street, Liverpool L69 3BX, United Kingdom.

CiteULike    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter     What's this?

THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES

Evidence-Based Guidelines for Weaning and Discontinuing Ventilatory Support : A Collective Task Force Facilitated by the American College of Chest Physicians; the American Association for Respiratory Care; and the American College of Critical Care Medicine
MacIntyre
Chest 2001;120 :375S-396S.
ABSTRACT | FULL TEXT  

The Role of Tracheotomy in Weaning
Heffner
Chest 2001;120 :477S-481S.
ABSTRACT | FULL TEXT  

Changes in Respiratory Mechanics After Tracheostomy
Davis et al.
Arch Surg 1999;134:59-62.
ABSTRACT | FULL TEXT