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This project aims at understanding the physical phenomena that are at the origin of the Sleep Apnea Syndrome, defined as a partial or total closure of the upper airways during sleep, with severe consequences for the patient.
To understand this phenomenon, a physical model of the airflow/walls interaction has been proposed with an in vitro validation of this model.
Once this validation will be carried out, we plan to use the fluid/structure model in order to provide a tool to assist the clinician in the planning of the surgical modification of the patient upper airways morphology.
Payan Y., Chabanas M., Pelorson X., Vilain C., Levy P., Luboz V. & Perrier P. (2002). Biomechanical models to simulate consequences of maxillofacial surgery. C. R. Biologies, Vol. 325, 407-417. (PDF)
Van Hirtum A., Chouly F., Teulé A., Payan Y. & Pelorson X. (2003). In-vitro study of pharyngeal pressure losses at the origin of obstructive sleep apnea. Proceedings of the 25th Annual International Conference of the IEEE Engineering In Medicine And Biology Society, pp. 371-374. (PDF)
Chouly F., Van Hirtum A., Lagree P.-Y., Pelorson X. & Payan Y. (2004). Physical and Numerical Model for Obstructive Sleep Apnea Syndrome. Proceedings of the 6th International Symposium on Computer Methods in Biomechanics & Biomedical Engineering, ISBN: 0-9549670-0-3. (PDF)
Collaborations : Toulouse University Hospital (Pr Paoli – Maxillo-Facial Department), Institut de la Communication Parlée, INPG (X. Pelorson, CNRS).
Status : First qualitative evaluations, quantitative comparisons with in vitro data.
More information : http://www-timc.imag.fr/Yohan.Payan/
Contact : Yohan.Payan@imag.fr