Document Detail


Thresholds in nasal histamine challenge in patients with allergic rhinitis, patients with hyperreflectory rhinopathy, and healthy volunteers.
MedLine Citation:
PMID:  15706984     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Characteristic symptoms of hyperreflectory rhinopathy include recurrent sneezing, nasal obstruction, and nasal secretion without an allergic background. The diagnosis can only be made if all differential diagnoses have been excluded. So far no clinical test has been established to reliably diagnose hyperreactivity of the nasal mucosa. The present study aimed to investigate whether nasal provocation with histamine allows identification of patients with hyperreflectory rhinopathy. MATERIALS AND METHODS: One-sided nasal challenge with histamine was applied to 13 patients with allergic rhinitis, 13 patients with hyperreflectory rhinitis, and 12 healthy volunteers. Histamine concentrations used were 0.25, 0.5, 1.0, 2.0, 4.0, 8.0, and 16.0 mg/mL. Test results were quantified using a symptom score (positive at values above 3) and active anterior rhinomanometry (positive at a reduction of airflow of 40% or more in comparison to challenge with solvent). RESULTS: While there was a significant difference between controls and patients with allergic rhinitis or hyperreflectory rhinopathy, respectively, no significant difference was observed between the two groups of patients. Results indicated that one-sided nasal provocation with histamine at a concentration of 1 mg/mL is sufficient to separate healthy subjects from patients with hyperreactivity of the nasal mucosa. In terms of the differentiation between subjects with hyperreactivity of the nasal mucosa and healthy controls, the sensitivity of one-sided nasal histamine provocation with 1 mg/mL was found to be 100%; its specificity was 83% if it was evaluated by rhinomanometry and symptom score. CONCLUSION: The present results indicate that one-sided nasal challenge with histamine at a concentration of 1 mg/mL is sufficient to separate healthy subjects from patients with hyperreactivity of the nasal mucosa. However, the test does not differentiate between patients with allergic rhinitis and patients with hyperreflectory rhinitis.
Authors:
Eike G Wuestenberg; Bettina Hauswald; Karl-Bernd Huettenbrink
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of rhinology     Volume:  18     ISSN:  1050-6586     ISO Abbreviation:  Am J Rhinol     Publication Date:    2004 Nov-Dec
Date Detail:
Created Date:  2005-02-14     Completed Date:  2005-05-03     Revised Date:  2005-11-17    
Medline Journal Info:
Nlm Unique ID:  8807268     Medline TA:  Am J Rhinol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  371-5     Citation Subset:  IM    
Affiliation:
Department for Otorhinolaryngology, University of Dresden Medical School, Dresden, Germany.
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MeSH Terms
Descriptor/Qualifier:
Adult
Case-Control Studies
Diagnosis, Differential
Female
Histamine / diagnostic use*
Humans
Male
Middle Aged
Nasal Mucosa / drug effects*,  physiopathology
Nasal Provocation Tests* / methods
Rhinitis / diagnosis*,  metabolism
Rhinitis, Allergic, Seasonal / diagnosis*,  metabolism
Rhinomanometry
Sensitivity and Specificity
Chemical
Reg. No./Substance:
51-45-6/Histamine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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