Predicting pharyngeal diameter from anterior tongue pellet positions in Swedish

2007 ◽  
Vol 121 (5) ◽  
pp. 3187-3187
Author(s):  
Michel T‐T. Jackson ◽  
Richard S. McGowan
Keyword(s):  
Pharyngeal Diameter

EFFECT OF HEAD AND NECK POSITION ON PHARYNGEAL DIAMETER IN HORSES

2010 ◽  
Vol 51 (5) ◽  
pp. 491-497 ◽  
Author(s):  
ANJA CEHAK ◽  
KARL ROHN ◽  
ANN-KRISTIN BARTON ◽  
PETER STADLER ◽  
BERNHARD OHNESORGE
Keyword(s):  
Head And Neck ◽  
Neck Position ◽  
Head And Neck Position ◽  
Pharyngeal Diameter

scholarly journals Effects of a synthetic lung surfactant on pharyngeal patency in awake human subjects

1997 ◽  
Vol 82 (1) ◽  
pp. 78-85 ◽  
Author(s):  
T. Van Der Touw ◽  
A. B. H. Crawford ◽  
J. R. Wheatley
Keyword(s):  
Surface Tension ◽  
Surface Properties ◽  
Human Subjects ◽  
Lung Surfactant ◽  
Supraglottic Airway ◽  
Electromyographic Activity ◽  
X Ray ◽  
Surfactant Preparation ◽  
Pharyngeal Diameter ◽  
Adhesive Forces

Van der Touw, T., A. B. H. Crawford, and J. R. Wheatley.Effects of a synthetic lung surfactant on pharyngeal patency in awake human subjects. J. Appl. Physiol. 82(1): 78–85, 1997.—We examined the effects of separate applications of saline and a synthetic lung surfactant preparation (Surf; Exosurf Neonatal) into the supraglottic airway (SA) on the anteroposterior pharyngeal diameter ( Dap) and the airway pressures required to close (Pcl) and reopen (Pop) the SA in five awake normal supine subjects. Dap, Pcl, and Pop were determined during lateral X-ray fluoroscopy and voluntary glottic closure when pressure applied to the SA lumen was decreased from 0 to −20 cmH2O and then increased to +20 cmH2O. After Surf application and relative to control, Dapwas larger for most of the applied pressures, Pcl decreased (−12.3 ± 1.9 to −18.7 ± 0.9 cmH2O; P < 0.01), Pop decreased (13.4 ± 1.9 to −6.0 ± 3.4 cmH2O; P < 0.01), and genioglossus electromyographic activity did not change ( P > 0.05). Saline had no effect. These observations suggest that pharyngeal intraluminal surface properties are important in maintaining pharyngeal patency. We propose that surfactants enhance pharyngeal patency by reducing surface tension and adhesive forces acting on intraluminal SA surfaces.

scholarly journals Pharyngeal diameter in various head and neck positions during exercise in sport horses

2014 ◽  
Vol 10 (1) ◽  
pp. 117 ◽  
Author(s):  
Li-mei Go ◽  
Ann Barton ◽  
Bernhard Ohnesorge
Keyword(s):  
Head And Neck ◽  
Pharyngeal Diameter
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