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  • Title: Nasal steroids improve regulation of nasal patency in asthma and mild rhinitis: a randomised, cross-over trial.
    Author: Rimmer J, Greenwood A, Bartlett D, Hellgren J.
    Journal: Eur Arch Otorhinolaryngol; 2012 Apr; 269(4):1133-8. PubMed ID: 22033572.
    Abstract:
    An important function of the healthy nose is the ability to adjust nasal patency in response to stimuli such as a change in posture between sitting and supine. We hypothesised that the regulation of nasal patency would be impaired in patients with asthma and mild rhinitis and that it could be improved by reducing nasal inflammation with a topical nasal steroid. This is a randomised, placebo-controlled, double-blind, cross-over study comprising 19 subjects with well-controlled asthma and a history of rhinitis without current treatment. The subjects were randomised to fluticasone propionate aqueous nasal spray (Beconase(®)), 200 μg daily, or placebo (FESS(®) saline nasal spray), for 6 weeks in a cross-over design with a 4-week wash-out between treatments. Nasal patency was measured with acoustic rhinometry, while sitting and supine and with peak nasal inspiratory flow (PNIF). Treatment response was also monitored with spirometry, Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ), Short Form-36 (SF-36), and The Pittsburgh Sleep Quality Index. The minimal cross-sectional area remained unchanged between sitting and supine at baseline and after placebo but after fluticasone propionate there was a significant decrease. PNIF, RQLQ and SF-36 improved after fluticasone propionate, whereas sleep quality did not change. In well-controlled asthma and mild rhinitis, nasal steroid treatment normalised the neurovascular response to posture in the nasal mucosa and improved health-related quality of life. An impaired ability to regulate nasal patency could be a marker of upper airway inflammation in patients with asthma that can be measured non-invasively.
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