title: Determination of eosinophil rate after nasal provocation test in allergic rhinitis diagnosis.
abstract: After nasal provocation test in patients with allergic rhinitis, using the allergen they were sensitized to, we have observed: 1) an increase in the percentage of nasal eosinophils after 2, 3, 24 and 48 hours; 2) sneezes, mainly in the first 30 minutes; 3) nasal obstruction in the first three hours; 4) absence of rhinorrhea, but not in all the patients; and 5) no predominance of nasal, auricular and/or palatine pruritus at any time. When patients without rhinitis, or with allergic rhinitis were stimulated using a pneumoallergen they were not sensitized to, no significative increase in the nasal eosinophils percentage was found. No symptoms were observed either. So, we can conclude that nasal secretion samples, for eosinophilia percentage determination, should be taken from 2 to 48 hours after nasal provocation, and that the most frequent symptoms, which are probably related to cellular changes, are nasal obstruction and sneezes.
authors.affiliation: Department of Allergy, Virgen de la Arrixaca University Hospital, Murcia, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Escudero Pastor
authors.forename: J M
authors.initials: JM
authors.lastname: Negro Alvarez
authors.forename: J
authors.initials: J
authors.lastname: Sola Pérez
authors.forename: V
authors.initials: V
authors.lastname: Soriano Gomis
authors.forename: A
authors.initials: A
authors.lastname: Mora González
authors.forename: I
authors.initials: I
authors.lastname: Sánchez-Guerrero Villajos
authors.forename: F J
authors.initials: FJ
authors.lastname: García Sellés
authors.forename: J D
authors.initials: JD
authors.lastname: López Sánchez
authors.forename: J A
authors.initials: JA
authors.lastname: Pagán Alemán
authors.forename: M
authors.initials: M
authors.lastname: Campos Aranda
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000485:Allergens / Q000009:adverse effects*; D002648:Child; D004802:Eosinophilia / Q000209:etiology*; D006801:Humans; D007073:Immunoglobulin E / Q000032:analysis; D007958:Leukocyte Count; D008875:Middle Aged; D009297:Nasal Mucosa / Q000473:pathology*; D015508:Nasal Obstruction / Q000209:etiology; D009299:Nasal Provocation Tests; D011537:Pruritus / Q000209:etiology; D012221:Rhinitis, Allergic, Perennial / Q000175:diagnosis* / Q000276:immunology / Q000473:pathology; D006255:Rhinitis, Allergic, Seasonal / Q000175:diagnosis* / Q000276:immunology / Q000473:pathology; D012882:Skin Tests; D012912:Sneezing
chemical_list: D000485:Allergens; D007073:Immunoglobulin E