RAST in the diagnosis of hypersensitivity to horse allergens. A comparison with clinical history and in vivo tests.
Abstract: Case history, skin tests and RAST were compared in a group (n = 40) of children with a history suggesting allergy to horses and in a group (n = 43) in whom there was no suspicion of hypersensitivity to horses. There was an agreement of 91% between case history and prick test. The same magnitude of agreement was found between case history and RAST (89%), and the agreement between RAST and prick test was 90%. The results of this investigation are clearly in contrast to earlier earlier reports, in that there was a very good correlation between prick test, RAST and case history. The results suggest that: (a) a proper evaluation of the skin test is of critical importance for the degree of correlation with other diagnostic tests; and (b) RAST is as reliable as carefully performed and evaluated skin tests.
Publication Date: 1977-09-01 PubMed ID: 563309DOI: 10.1111/j.1365-2222.1977.tb01476.xGoogle Scholar: Lookup
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- Comparative Study
- Journal Article
Summary
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This study compares the effectiveness of Radioallergosorbent Test (RAST) with traditional clinical history and skin tests in diagnosing horse allergen hypersensitivity in children. The results indicate a high level of agreement among all three methods, suggesting the RAST is as reliable as the other methods.
Participants
- The study involved two groups of children, each with distinctive backgrounds in relation to horse allergen hypersensitivity.
- The first group consisted of 40 children with a history suggesting allergy to horses.
- The second group originated from 43 children having no suspicion of hypersensitivity to horses.
Methods
- The researchers employed three different tests to compute the prevalence of horse allergen hypersensitivity in the participants – case history, skin tests and RAST.
- Case history involved checking the records of the children to understand the instances of their allergic reactions in the past.
- Skin tests included pricking the skin of the participants to introduce a small amount of allergen and observing for any reaction.
- The Radioallergosorbent Test (RAST), an in-vitro testing method, was used to measure the levels of allergen-specific antibodies in the blood samples of the children.
Findings
- There was a 91% agreement between the case history and the skin test results, indicating both tests largely drew similar conclusions.
- The correlation between case history and RAST results was noted to be 89%, reflecting a fairly high level of agreement.
- A 90% agreement between RAST and prick tests was observed, suggesting that RAST is as reliable as skin tests in diagnosing horse allergen hypersensitivity.
Implications
- The study results contradicted previous reports, and demonstrated a strong correlation between case history, skin tests, and RAST.
- The high level of agreement among the three methods suggests that the accuracy of these diagnostic tests is strongly influenced by their careful performance and evaluation.
- Also, the findings indicate that RAST could be employed as a reliable method for diagnosing horse allergen hypersensitivity.
Cite This Article
APA
Leegaard J, Roth A.
(1977).
RAST in the diagnosis of hypersensitivity to horse allergens. A comparison with clinical history and in vivo tests.
Clin Allergy, 7(5), 455-464.
https://doi.org/10.1111/j.1365-2222.1977.tb01476.x Publication
Researcher Affiliations
MeSH Terms
- Adolescent
- Adult
- Allergens
- Animals
- Child
- Child, Preschool
- Female
- Hair / immunology
- Horses / immunology
- Humans
- Hypersensitivity / diagnosis
- Immunoglobulin E / analysis
- Male
- Radioallergosorbent Test
- Radioimmunoassay
- Serum Albumin / immunology
- Skin Tests
Citations
This article has been cited 3 times.- Cookson JB, Makoni G. Prevalence of asthma in Rhodesian Africans.. Thorax 1980 Nov;35(11):833-7.
- Ohman JL Jr, Sundin B. Standardized allergenic extracts derived from mammals.. Clin Rev Allergy 1987 Feb;5(1):37-47.
- Johansson SG, Yman L. In vitro assays for immunoglobulin E. Methodology, indications, and interpretation.. Clin Rev Allergy 1988 Summer;6(2):93-139.
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