title: [Visagnost--a strip test for in vitro allergy diagnosis in comparison with Magic Lite and Cap-FEIA: I. Total IgE determination].
abstract: The diagnosis of allergic airway diseases, especially allergic rhinitis, is based on medical history, clinical examination and further tests. Since the detection of IgE, total IgE in serum has become a major tool in the diagnosis of immediate allergy. Although in-vivo-tests like skin prick test are performed in almost every allergologist's practice, the capability of determining IgE was restricted to special laboratories. As shown for semiquantitative glucose dipsticks, a rapid and easy method has advantages for both patient and doctor. A recently developed dipstick test (Visagnost, in U.S. Quidel allergy screen) for allergy screening now enables every practitioner to determine total IgE levels within less than one hour. For the evaluation of the diagnostic value of this dipstick test, we compared the total IgE levels in the sera of 56 patients with two modern methods (Magic Lite, Ciba-Corning, and Cap-FEIA, Pharmacia). Visagnost is an enzyme-immuno-assay with the solid phase on the dipstick. It can be performed in serum, plasma or whole blood, in this study the test was performed in serum. Magic lite is a combined solid-liquid-phase immuno-assay with a final chemiluminescent reaction, the incubation time is about two hours. Cap-FEIA is a solid phase sandwich ELISA with a fluorescent reaction and an incubation time of at least four hours. Patient's sera were shock-frozen in liquid nitrogen and stored at -80 degrees C until examination. Visagnost gave results in four ranges of minor 20 U/ml, 21-50 U/ml, 51-100 U/ml and more than 100 U/ml.(ABSTRACT TRUNCATED AT 250 WORDS)
authors.affiliation: HNO-Klinik der Universität München.
authors.forename: G
authors.initials: G
authors.lastname: Rasp
mesh_terms: D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D007073:Immunoglobulin E / Q000032:analysis*; D007428:Intradermal Tests; D011864:Radioimmunosorbent Test; D011934:Reagent Strips; D012221:Rhinitis, Allergic, Perennial / Q000175:diagnosis* / Q000276:immunology; D006255:Rhinitis, Allergic, Seasonal / Q000175:diagnosis* / Q000276:immunology
chemical_list: D011934:Reagent Strips; D007073:Immunoglobulin E
vernacular_title: Visagnost--ein Streifentest zur In-Vitro-Allergie-Diagnostik im Vergleich mit Magic Lite und Cap-FEIA: I. Gesamt-IgE-Bestimmung.