Title :
In-vitro study of pharyngeal pressure losses at the origin of obstructive sleep apnea
Author :
Van Hirtum, A. ; Chouly, F. ; Teulé, A. ; Payan, Y. ; Pelorson, X.
Author_Institution :
Inst. de la Commun. Parlee, Stendhal Univ., Grenoble, France
Abstract :
This paper presents an in-vitro experimental and theoretical study of pharyngeal airflow at the origin of obstructive sleep apnea. The air flow rate and pressure along a geometrical constriction are predicted from the upstream pressure and geometry. Quantitative results are validated for rigid ´in-vitro´ replicas. The influence of asymmetry is discussed.
Keywords :
diseases; pneumodynamics; sleep; air flow rate; breathing; geometrical constriction; in-vitro study; obstructive sleep apnea; pharyngeal airflow; pharyngeal pressure losses; upstream pressure; Cardiovascular diseases; Geometry; In vitro; Medical services; Pharynx; Road accidents; Sleep apnea; Stress; Testing; Tongue;
Conference_Titel :
Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE
Print_ISBN :
0-7803-7789-3
DOI :
10.1109/IEMBS.2003.1279665
