title: Rhinomanometry in young patients with perennial allergic rhinitis with/without recent exposure to tobacco smoke.
abstract: OBJECTIVE
  To assess the influence of environmental exposure to tobacco smoke on the nasal symptoms and nasal resistance of young patients with perennial allergic rhinitis.
  
  
  METHODS
  Cross-sectional study.
  
  
  METHODS
  Tertiary referral centre.
  
  
  METHODS
  Fifty patients were evaluated (aged 10-19 years old): 25 patients with and 25 patients without recent exposure to tobacco smoke (confirmed by cotinine/creatinine ratio).
  
  
  METHODS
  After a clinical evaluation, all the patients replied to a validated questionnaire of the severity of the nasal symptoms. Then total nasal airway resistance was recorded by active anterior rhinomanometry.
  
  
  RESULTS
  Patients with exposure to tobacco smoke had a larger total resistance than patients without exposure (t-test, P < 0.01). No significant correlation was observed between the total score of the questionnaire of nasal symptoms and the nasal resistance.
  
  
  CONCLUSIONS
  In young patients with perennial allergic rhinitis, exposure to tobacco smoke can be related to increased nasal resistance, which may not be recognised by the report of nasal symptoms.
authors.affiliation: Unidad de Investigación Médica en Otoneurología, CMN sXXI, México DF, Mexico.
authors.forename: B B
authors.initials: BB
authors.lastname: Montaño-Velázquez
authors.forename: R C
authors.initials: RC
authors.lastname: Navarrete
authors.forename: M D
authors.initials: MD
authors.lastname: Mogica Martínez
authors.forename: M
authors.initials: M
authors.lastname: Becerril-Ángeles
authors.forename: K
authors.initials: K
authors.lastname: Jáuregui-Renaud
mesh_terms: D000293:Adolescent; D000403:Airway Resistance / Q000502:physiology*; D002648:Child; D003430:Cross-Sectional Studies; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D011446:Prospective Studies; D015203:Reproducibility of Results; D012221:Rhinitis, Allergic, Perennial / Q000175:diagnosis* / Q000503:physiopathology; D025363:Rhinomanometry / Q000379:methods*; D014028:Tobacco Smoke Pollution / Q000009:adverse effects*; D055815:Young Adult
chemical_list: D014028:Tobacco Smoke Pollution