| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Departments of 1 Internal Medicine, 2 Plastic Surgery, and 3 Radiology, University of Virginia Medical Center, Charlottesville, Virginia 22908
Received 15 August 1996; accepted in final form 8 April 1997.
Winter, W. Christopher, Tom Gampper, Spencer B. Gay, and
Paul M. Suratt. Lateral pharyngeal fat pad pressure during breathing in anesthetized pigs. J. Appl.
Physiol. 83(3): 688-694, 1997.
It has been
hypothesized that the pressure in tissues surrounding the upper airway
is one of the determinants of the size and shape of the upper airway.
To our knowledge, this pressure has not been measured. The purpose of
this study was to test whether the pressure in a tissue lateral to the
upper airway, the lateral pharyngeal fat pad pressure (Pfp), differs
from atmospheric and pharyngeal pressures and whether it changes with
breathing. We studied six male lightly sedated pigs by inserting a
transducer tipped catheter into their fat pad space by using
computerized tomographic scan guidance. We measured airflow with a
pneumotachograph attached to a face mask and pharyngeal pressure with a
balloon catheter. Pfp differed from atmospheric pressure, generally
exceeding it, and from pharyngeal pressure. Pfp correlated positively
with airflow and with pharyngeal pressure, decreasing during
inspiration and increasing during expiration. Changes in Pfp with
ventilation were eliminated by oropharyngeal intubation. We conclude
that Pfp differs from atmospheric and pharyngeal pressures and that it
changes with breathing.
pharyngeal airway; upper airway; fat; sleep apnea syndromes
This article has been cited by other articles:
|
|
 |
|
  K. Kairaitis, L. Howitt, J. R. Wheatley, and T. C. Amis Mass loading of the upper airway extraluminal tissue space in rabbits: effects on tissue pressure and pharyngeal airway lumen geometry J Appl Physiol, March 1, 2009; 106(3): 887 - 892. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. P. Kirkness, A. R. Schwartz, H. Schneider, N. M. Punjabi, J. J. Maly, A. M. Laffan, B. M. McGinley, T. Magnuson, M. Schweitzer, P. L. Smith, et al. Contribution of male sex, age, and obesity to mechanical instability of the upper airway during sleep J Appl Physiol, June 1, 2008; 104(6): 1618 - 1624. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Amatoury, L. Howitt, J. R. Wheatley, A. P. Avolio, and T. C. Amis Snoring-related energy transmission to the carotid artery in rabbits J Appl Physiol, May 1, 2006; 100(5): 1547 - 1553. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Kairaitis, R. Stavrinou, R. Parikh, J. R. Wheatley, and T. C. Amis Mandibular advancement decreases pressures in the tissues surrounding the upper airway in rabbits J Appl Physiol, January 1, 2006; 100(1): 349 - 356. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Kairaitis, R. Parikh, R. Stavrinou, S. Garlick, J. P. Kirkness, J. R. Wheatley, and T. C. Amis Upper airway extraluminal tissue pressure fluctuations during breathing in rabbits J Appl Physiol, October 1, 2003; 95(4): 1560 - 1566. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. P Kirkness, H. K Christenson, S. R Garlick, R. Parikh, K. Kairaitis, J. R Wheatley, and T. C Amis Decreased Surface Tension of Upper Airway Mucosal Lining Liquid Increases Upper Airway Patency in Anaesthetised Rabbits J. Physiol., March 1, 2003; 547(2): 603 - 611. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. A. Tuck and J. E. Remmers Mechanical properties of the passive pharynx in Vietnamese pot-bellied pigs. I. Statics J Appl Physiol, June 1, 2002; 92(6): 2229 - 2235. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. A. Rowley, C. S. Sanders, B. R. Zahn, and M. S. Badr Gender differences in upper airway compliance during NREM sleep: role of neck circumference J Appl Physiol, June 1, 2002; 92(6): 2535 - 2541. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| Visit Other APS Journals Online |
