• M M H T van Egmond, M M Rovers, C T M Hendriks, and N van Heerbeek.
• Department of Otorhinolaryngology, Radboud university medical center, Radboud Institute for Health Sciences, route 377, PO Box 9101, 6500, HB, Nijmegen, the Netherlands. Machteld.vanEgmond@radboudumc.nl.
• Trials. 2015 Nov 4; 16: 500.

BackgroundSeptoplasty, i.e., surgical correction of the deviated nasal septum, is the most common ear, nose and throat (ENT) operation in adults. Currently the main indication to perform septoplasty is nasal obstruction. However, the effectiveness of septoplasty for nasal obstruction in adults with a deviated nasal septum remains uncertain. Scientific evidence is scarce and inconclusive, and internationally accepted guidelines are lacking. Moreover, there is no consensus on whether or not septoplasty should be combined with concurrent turbinate surgery. The objective of the current ongoing trial is to study the effectiveness of septoplasty (with or without concurrent turbinate surgery) as compared to non-surgical management for nasal obstruction in adults with a deviated nasal septum, both in terms of subjective (health-related quality of life) as well as objective (nasal patency) outcome measures.Methods/DesignThe study is designed as a pragmatic, multicenter, parallel-group, randomized controlled trial. A total of 200 adults will be enrolled with nasal obstruction based on a deviated nasal septum and an indication for septoplasty according to current medical practice in the Netherlands. Participants will be randomized to either septoplasty (with or without concurrent turbinate surgery as originally indicated by the otorhinolaryngologist) or a non-surgical watchful waiting strategy. Follow-up visits will be scheduled at 0, 3, 6, 12, and 24 months. During each follow-up visit, health-related quality of life questionnaires will be administered and measurements of four-phase rhinomanometry and peak nasal inspiratory flow will be performed. Costs will be studied using a patient-based diary. Effects of septoplasty on health-related quality of life (primary outcome) and nasal patency will be calculated as mean differences with 95 % confidence intervals. Subgroup analyses according to gender, age, and severity of the septal deviation will be performed. All analyses will be performed on an intention-to-treat basis.DiscussionWith the results of this study we aim to contribute to the development of evidence-based guidelines regarding indications for septoplasty.Trial RegistrationNederlands Trial Register/Dutch Trial Registry ( www.trialregister.nl ), trial identifying number: NTR3868 . Registered on 21 February 2013.

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