Publications by authors named "Stephan Ribeil"
Background: The influence of obesity on airway responsiveness remains controversial.
Objective: This study was designed to investigate airway responsiveness, airway inflammation, and the influence of sleep apnea syndrome (SAS), in severely obese subjects, before and after bariatric surgery.
Methods: A total of 120 non-asthmatic obese patients were referred consecutively for pre-bariatric surgery evaluation.
Objective: The aim of the study was to determine whether Nasal Provocation Tests (NPT) could help in the diagnosis of occupational rhinitis (OR).
Methods: Changes in nasal airway resistance (NAR), measured by posterior rhinomanometry during specific nasal challenge associated with per and post test clinical scores, were compared to a prior probability, based on the patient's history, determined by occupational physicians, in 41 hairdressers and 33 bakers referred for suspected OR.
Results: A DeltaNAR >or= 150% defined the positivity of the NPT.
Study Objectives: To assess whether the dual anatomic origin of exhaled nitric oxide (NO), namely alveolar and bronchial, could explain the link between exhaled NO and airway responsiveness, and could participate in the bronchodilatory effect of deep inspiration (DI) that may be evidenced during methacholine challenge.
Design And Setting: Prospective study in a laboratory performing pulmonary function tests of an academic hospital.
Patients And Interventions: Patients underwent multiple flow analysis of exhaled NO, allowing calculation of total maximum airway NO flux (J'awno) and NO concentration of expansible compartment (CAno), and received a cumulative methacholine dose of 2,000 microg.