• Lan Zhang, Baohua Zhu, Rong Zhang, Huixia Liu, Peishan Li, Jie Liao, Hanchao Shen, and Li Tian.
• Clinical Medicine College, Chengdu University of Traditional Chinese medicine, Chengdu, Sichuan Province, P. R. China.
• Medicine (Baltimore). 2022 Nov 18; 101 (46): e31831e31831.

BackgroundCorticosteroid has been a mainstay of chronic rhinosinusitis with nasal polyps (CRSwNP) medical therapy. While endoscopic sinus surgery (ESS) will be performed when patients had failed to respond to maximal medical therapy. Many studies shown that several corticosteroids of interventions (e.g., nasal spray, oral, atomization/nebulization, nasal irrigation, direct infiltration, and steroid-eluting stent, etc) have each demonstrated significant efficacy compared with placebo or no corticosteroids intervention except intranasal corticosteroids for the treatment of CRSwNP after ESS. The aim of this systematic review and network meta-analysis is to answer the following question: which 1 is the best corticosteroid of intervention for CRSwNP patients after ESS?MethodsA systematic review will be conducted to identify studies involving randomized controlled trials which compared several different interventions of corticosteroids (e.g., nasal spray, oral, atomization/nebulization, nasal irrigation, direct infiltration, steroid-eluting stent, etc) for CRSwNP patients after ESS. The primary outcomes are efficacy (e.g., effective rate or cure rate), visual analogic scale of symptom severity, Lund-Kennedy endoscopic score, adverse events, and so on. We will comprehensively search PubMed, Embase, Cochrane Library, ClinicalTrials.gov, Web of Science, Chinese National Knowledge Infrastructure, Wangfang and VIP journal database from inception to July, 2022. For studies which meet our inclusion criteria, 2 reviewers will extract data independently and assess the quality of literature using a revision of version 2 of the Cochrane risk of bias tool (RoB 2.0). A random effects model will be used for all pairwise meta-analyses (with a 95% confidence interval). Network meta-analyses will be conducted to generate estimates of comparative effectiveness of each intervention class and rankings of their effectiveness.ResultsThe results of this study expect to provide a high-quality, evidence-based recommendation on which 1 is the best corticosteroid of intervention for CRSwNP patients after ESS?DiscussionThis study will provide evidence regarding the comparability of several interventions of corticosteroids for CRSwNP patients after ESS. Also, the data generated from this review will provide health-care providers with a clear evidence synthesis of CRSwNP patients after ESS management strategies. These data will be incorporated into the development of a patient decision aid to assist patients and clinicians in making a preference-based decision when faced with a CRSwNP patients after ESS as well.Copyright © 2022 the Author(s). Published by Wolters Kluwer Health, Inc.

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