Efficacy of an Intranasal Stent on Nasal Obstruction at Night (RHINASTENT)

This study aims to demonstrate a decrease with normalization of nasal resistance in the forward decubital position and with an intra-nasal stent in patients with nasal obstruction.

All patients consulting for nasal obstruction at night and who have functional nasal test with pathological resistance in decubitus position are included. Functional nasal test (non invasive tests) will be performed before and after intranasal introduction of a stent: anterior rhinomanometry to measure nasal function by the measure of resistance and acoustic rhinometry to measure the geometry of nasal fossa by the measure of minimal sectional cross area sitting, after 30 minutes of decubitus then new measurements with a stent in decubitus position in each nostril .

All patients consulting for predominantly nocturnal nasal obstruction who have benefited from Nasal Respiratory Functional Exploration with detection of pathological resistance in the decubitus.

Patients with Nasal obstruction at night, will be used intrasal stent during 15 nights. These are flexible silicone tubes that are lubricated and easy to insert into the nasal cavities, which would restore the permeability of the nasal cavities.

Change grom Baseline of Nasal resistance in anterior rhinomanometry. Sitting, lying in the meadow and Per stent nasal.

Scale [0-100]. The total score can range from 0 to 110, with values increasing as the severity of symptoms worsens

Inclusion Criteria: Volontary patient Over 18 years old or more. Complain of a nasal obstruction more important (or only) at night (in decubitus position) Exclusion Criteria: Unability to sign the consent form Allergy of stent component Perforation of nasal septum Haemostasis disorder or anticoagulant therapy Bilateral obstructive septal deviation ou polyposis induce inability to introduce the stent in the nasal cavities