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Clinical efficacy of intranasal drug delivery by nebulization in chronic rhinosinusitis: a systematic review.

Rhinology 2019 April 2
BACKGROUND: Treatment of chronic rhinosinusitis (CRS) aims to treat the underlying inflammation or infection. Although the optimal modality of administration remains controversial, inhalation route is usually preferred. The aim of this systematic review was to summarize the efficacy of intranasal corticoisteroids or antibiotics delivery by nebulization on symptoms, histology, endoscopy scores, nasal obstruction, clinical outcomes and quality of life in CRS.

METHOD: This systematic review followed the PRISMA guidelines. Randomized controlled, comparative and cohort studies evaluating effects of treatment by nebulization in sinusitis were identified and reviewed from two databases (PubMed and Scopus). Two reviewers independently assessed study quality and reviewed the selected studies.

RESULTS: 600 references were retrieved and 12 studies evaluating 377 patients were included in the systematic review. Different devices were used. Efficacy of nasal delivery by nebulization was systematically observed on symptoms and size of polyps and frequently on inflammatory parameters in all studies. The presence of polyps improved the efficacy of the nebulization. This way of delivery appears not convincing regarding antibiotics. Few side effects were noted in the retrieved studies and only for nebulized antibiotics.

CONCLUSIONS: This systematic review highlighted that based on the present literature nebulization is not better than nasal spray to the delivery of corticosteroids due to the positive results on symptoms, endoscopic appearance and histological outcomes. For antibiotics delivery, the nebulization is not of added value.

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