Azithromycin for the treatment of eosinophilic nasal polyposis: clinical and histologic analysis
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Universidade Federal de Minas Gerais
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Artigo de periódico
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Introduction: Macrolides used as immunomodulators are a promising tool for chronic inflammatory airway diseases.Eosinophilic nasal polyposis (ENP) is still considered a disease that is difficult to control with the currently standardized treatments.Objectives: To evaluate prolonged treatment with low-dose azithromycin for ENP based on clinical and histopathologic variables.Methods: The present investigation was a self-paired case study of 33 patients with ENP. A comparison was performed between patients before and after treatment with azithromycin for 8 weeks. The patients were subjected to clinical examinations,staging (three-dimensional imaging by endoscopy), application of the questionnaire, and biopsy of nasal polyps at the beginning and at the end of the treatment. Results: The treatment yielded a clinical improvement regarding the two variables studied: polyposis staging (69.7%) and questionnaire (57.6%). We did not find significant differences in the inflammatory pattern and in the percentage or absolute number of eosinophils per field between samples obtained before and after the treatment (p > 0.05). There was no difference between the answers obtained from groups with and without asthma and/or aspirin intolerance (p>0.3). The patients with advanced initial staging exhibited lower subjective improvement index and staging reduction (p> 0.031 and p > 0.012, respectively). Conclusion: Based on this study, azithromycin may be considered as another therapeutic option for ENP. However, further studies are necessary to define the real mechanism of action involved.
Abstract
Assunto
Macrolídeos, Pólipos nasais, Azitromicina, Eosinófilos
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Macrolides, Nasal polyps, Azithromycin, Eosinophils
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https://journals.sagepub.com/doi/full/10.2500/ar.2016.7.0160?rfr_dat=cr_pub++0pubmed&url_ver=Z39.88-2003&rfr_id=ori%3Arid%3Acrossref.org