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Clinical benefits of aspirin desensitization in patients with nonsteroidal anti-inflammatory drug exacerbated respiratory disease are not related to urinary eicosanoid release and are accompanied with decreased urine creatinine

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Background:

Treatment with acetylsalicylic acid (ASA) after desensitization may be a therapeutic option in patients with nonsteroidal anti-inflammatory drug exacerbated respiratory disease (NERD). The mechanisms that lead to improvement in rhinosinusitis and asthma symptoms remain unknown.

Aim:

To attribute the documented clinical effects of ASA treatment of chronic rhinosinusitis and/or asthma to the release of eicosanoid metabolites in urine.

Methods:

Fourteen patients with NERD were successfully desensitized, and, eventually, eight patients were treated with 650 mg of ASA daily for 3 months. In addition to clinical assessments, nuclear magnetic resonance imaging and smell test were performed before and after treatment with ASA. Venous blood and urine were collected before desensitization and after 1 and 3 months of treatment. The levels of urinary leukotrienes (LT) (cysteinyl LT and LTE4) and tetranor PGDM (metabolite of prostaglandin D2) were measured by enzyme-linked immunosorbent assay.

Results:

Treatment with ASA after desensitization alleviated symptoms of rhinosinusitis, improved nasal patency (mean, 50% decrease in peak nasal inspiratory flow) and sense of smell (fourfold increase in smell test score) in as early as 4 weeks. Clinical improvements were not accompanied by any change in sinonasal mucosa thickness as assessed with nuclear magnetic resonance. Urinary cysteinyl LTs, LTE4, and prostaglandin D2 metabolite remained relatively stable during ASA treatment and did not correlate with clinical improvements. Desensitization was associated with a progressive decrease of urinary creatinine.

Conclusion:

Clinical improvement in rhinosinusitis and/or asthma after ASA desensitization was not related to concentrations of urinary eicosanoid metabolites. A decrease of urinary creatinine requires further study to determine the renal safety of long-term treatment with ASA after desensitization.
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Keywords: Arachidonic acid metabolites; NSAID Exacerbated Respiratory Disease; aspirin; asthma; hypersensitivity; leukotrienes; nasal polyps

Document Type: Research Article

Affiliations: Department of Rheumatology, Medical University of Lodz, Poland

Publication date: May 1, 2016

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  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

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    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

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    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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