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J Appl Physiol (March 22, 2002). doi:10.1152/japplphysiol.00085.2002
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Articles in PresS, published online ahead of print March 22, 2002
J Appl Physiol, 10.1152/jap.00085.2002
Submitted on February 4, 2002
Accepted on March 15, 2002

SEGMENTAL ANALYSIS OF NASAL CAVITY COMPLIANCE BY ACOUSTIC RHINOMETRY

Lydia Brugel-Ribere1*, Redouane Fodil2, Andre Coste1, Christian Larger3, Daniel Isabey2, Alain Hark4, and Bruno Louis2

1 Unite de Recherche de Physiopathologie et Therapeutique Respiratoire U 492, INSERM, Creteil, France; Service d'ORL et de Chirurgie cervico-faciale Hopital Henri Mondor, Assistance Publique-Hopitaux de Paris, Creteil, France
2 Unite de Recherche de Physiopathologie et Therapeutique Respiratoire U 492, INSERM, Creteil, France
3 Service de Physiologie-Explorations Fonctionnelles Hopital Henri Mondor, Assistance Publique-Hopitaux de Paris, Creteil, France
4 Service de Physiologie-Explorations Fonctionnelles Hopital Henri Mondor, Assistance Publique-Hopitaux de Paris, Creteil, France; Unite de Recherche de Physiopathologie et Therapeutique Respiratoire U 492, INSERM, Creteil, France

* To whom correspondence should be addressed. E-mail: bruno.louis{at}creteil.inserm.fr.

To explore the determinants of possible collapse of the nasal valve region, a common cause of nasal obstruction, we evaluated the mechanical properties of the nasal wall. In this study, we determined the nasal cross-sectional area to negative pressure ratio (nasal wall compliance) in the anterior part of the nose in six healthy subjects by measuring nasal area by acoustic rhinometry at pressures ranging from atmospheric pressure to a negative pressure of -10 cmH2O. Measurements were performed at baseline and after nasal mucosal decongestion (oxymetazoline). At baseline, nasal wall compliance increased progressively from the nasal valve (0.031 cm2/cmH2O ± 0.016 SD) to the anterior and medial part of the inferior turbinate (0.045 cm2/cmH2O ± 0.024 SD) and to the middle meatus region (0.056 cm2/cmH2O ± 0.029 SD). After decongestant, compliances decreased and became similar in the three regions. On the basis of these results, we hypothesize that compliance of the nasal wall is partly related to mucosal blood volume and quantity of vascular tissue, which differ in the three regions, increasing from the nasal valve to the middle meatus.




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