Nasal polyps: An independent risk factor for bronchial hyperresponsiveness in patients with allergic rhinitis.
Am J Rhinol Allergy
; 24(5): 359-63, 2010.
Article
em En
| MEDLINE
| ID: mdl-21244736
ABSTRACT
BACKGROUND:
Many studies were conducted to figure out the relationship between allergic rhinitis (AR) and lower airway diseases. This study was designed to elucidate the clinical parameters that could predict the coexistence of bronchial hyperresponsiveness (BHR) in AR and suggest a guideline for lower airway evaluation in these patients.METHODS:
One hundred seventy-three patients newly diagnosed with AR were evaluated for the lower airway with the methacholine bronchoprovocation test.RESULTS:
BHR was more prevalent in patients with nasal polyps (p = 0.01), in patients complaining of moderate to severe symptoms (p = 0.023), with higher serum total IgE levels (p = 0.001), and with blood eosinophil count (p = 0.008). No statistically significant difference was observed between intermittent and persistent AR patients (p = 0.364). Blood eosinophil count that could predict BHR was calculated as 320 cells/µL (p = 0.004).CONCLUSION:
Instead of a routine lower airway evaluation for all AR patients, we recommend lower airway evaluation for the selected patients with nasal polyps, moderate to severe symptoms, and high blood eosinophil count.
Texto completo:
1
Coleções:
01-internacional
Temas:
Geral
Base de dados:
MEDLINE
Assunto principal:
Rinite Alérgica Perene
/
Rinite Alérgica Sazonal
/
Pólipos Nasais
/
Hiper-Reatividade Brônquica
Tipo de estudo:
Etiology_studies
/
Guideline
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Adolescent
/
Adult
/
Aged
/
Child
/
Child, preschool
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Am J Rhinol Allergy
Assunto da revista:
ALERGIA E IMUNOLOGIA
/
OTORRINOLARINGOLOGIA
Ano de publicação:
2010
Tipo de documento:
Article