4.2 Article

Allergen immunotherapy against house dust mites in patients with local allergic rhinitis and asthma

期刊

JOURNAL OF ASTHMA
卷 59, 期 9, 页码 1850-1858

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TAYLOR & FRANCIS LTD
DOI: 10.1080/02770903.2021.1971701

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Treatment; phenotypes

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For adult patients with local allergic rhinitis and asthma, a 12-month course of sublingual immunotherapy for house dust mite allergies can improve nasal and bronchial symptoms and reduce symptomatic treatment.
Local allergic rhinitis (LAR) is a clinical rhinitis phenotype characterized by the presence of nasal symptoms of AR in nonatopic patients with a negative skin prick test and undetectable specific IgE (sIgE) in serum against inhalant allergens but with a positive nasal allergen provocation test. This study evaluated the effectiveness of a 12-month course of sublingual immunotherapy (SLIT) for house dust mite (HDM) allergies in adult patients with confirmed LAR and concomitant asthma. Methods The study was a prospective, double-blind, placebo-controlled trial with patients diagnosed with LAR to HDMs and with concomitant asthma who underwent a 12-month treatment course of SLIT for HDM allergies. Seventeen patients were randomized to SLIT with the use of allergen extracts of D. pteronyssinus and D. farinae (50/50%) in SQ-HDM SLIT tablets and 15 patients were randomized to the placebo group. The total rhinitis score (TRSS), total asthma symptom score (TASS), combined total symptom score (TSS), total medication score (TMS), and FEV1 were analyzed. Results: In the final analysis, 16 patients who received SLIT and 14 who received placebo who completed the study protocol were included. Significant reductions in TRSS, TASS, TSS, and TMS after 12 months of treatment were observed in patients after SLIT (p < 0.05). A significant increase in the mean FEV1 between baseline and after 12 months of therapy was observed in the study, with p = 0.03 in the study group. Conclusion: SLIT can improve nasal and bronchial symptoms and reduce symptomatic treatment in patients with LAR and asthma and with hyperresponsiveness to HDMs.

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