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Gelbard A, Shyr Y, Berry L, Hillel AT, Ekbom DC, Edell ES, Kasperbauer JL, Lott DG, Donovan DT, Garrett CG, Sandhu G, Daniero JJ, Netterville JL, Schindler JS, Smith ME, Bryson PC, Lorenz RR, Francis DO. Treatment options in idiopathic subglottic stenosis: protocol for a prospective international multicentre pragmatic trial. BMJ Open 2018; 8:e022243. [PMID: 29643170 PMCID: PMC5898326 DOI: 10.1136/bmjopen-2018-022243] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
INTRODUCTION Idiopathic subglottic stenosis (iSGS) is an unexplained progressive obstruction of the upper airway that occurs almost exclusively in adult, Caucasian women. The disease is characterised by mucosal inflammation and localised fibrosis resulting in life-threatening blockage of the upper airway. Because of high recurrence rates, patients with iSGS will frequently require multiple procedures following their initial diagnosis. Both the disease and its therapies profoundly affect patients' ability to breathe, communicate and swallow. A variety of treatments have been advanced to manage this condition. However, comparative data on effectiveness and side effects of the unique approaches have never been systematically evaluated. This study will create an international, multi-institutional prospective cohort of patients with iSGS. It will compare three surgical approaches to determine how well the most commonly used treatments in iSGS 'work' and what quality of life (QOL) trade-offs are associated with each approach. METHODS AND ANALYSIS A prospective pragmatic trial comparing the 'Standard of Care' for iSGS at multiple international institutions. Patients with a diagnosis of iSGS without clinical or laboratory evidence of vasculitis or a history of endotracheal intubation 2 years prior to symptom onset will be included in the study. Prospective evaluation of disease recurrence requiring operative intervention, validated patient-reported outcome (PRO) measures as well as patient-generated health data (mobile peak flow recordings and daily steps taken) will be longitudinally tracked for 36 months. The primary endpoint is treatment effectiveness defined as time to recurrent operative procedure. Secondary endpoints relate to treatment side effects and include PRO measures in voice, swallowing, breathing and global QOL as well as patient-generated health data. ETHICS AND DISSEMINATION This protocol was approved by the local IRB Committee of the Vanderbilt University Medical Center in July 2015. The findings of the trial will be disseminated through peer-reviewed journals, national and international conference presentations and directly to patient with iSGS via social media-based support groups. TRIAL REGISTRATION NUMBER NCT02481817.
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Affiliation(s)
- Alexander Gelbard
- Department of Otolaryngology, Vanderbilt University, Nashville, Tennessee, USA
| | - Yu Shyr
- Department of Biostatistics, Vanderbilt University, Nashville, Tennessee, USA
| | - Lynne Berry
- Department of Biostatistics, Vanderbilt University, Nashville, Tennessee, USA
| | - Alexander T Hillel
- Department of Otolaryngology, Johns Hopkins University, Baltimore, Maryland, USA
| | - Dale C Ekbom
- Department of Otolaryngology, Mayo Clinic, Rochester, Minnesota, USA
| | - Eric S Edell
- Department of Pulmonology, Mayo Clinic, Rochester, Minnesota, USA
| | - Jan L Kasperbauer
- Department of Otolaryngology, Mayo Clinic, Rochester, Minnesota, USA
| | - David G Lott
- Department of Otorhinolaryngology, Mayo Clinic Scottsdale, Scottsdale, Arizona, USA
| | - Donald T Donovan
- Department Otolaryngology, Baylor College of Medicine, Houston, Texas, USA
| | - C. Gaelyn Garrett
- Department of Otolaryngology, Vanderbilt University, Nashville, Tennessee, USA
| | - Guri Sandhu
- Department of Otolaryngology, Imperial College Healthcare NHS, London, UK
| | - James J Daniero
- Department Otolaryngology, University of Virginia Health System, Charlottesville, Virginia, USA
| | - James L Netterville
- Department of Otolaryngology, Vanderbilt University, Nashville, Tennessee, USA
| | - Josh S Schindler
- Department of Otolaryngology, Oregon Health and Science University, Portland, Oregon, USA
| | - Marshall E Smith
- Department of Otolaryngology, University of Utah, Salt Lake City, Utah, USA
| | - Paul C Bryson
- Department of Otolaryngology, The Cleveland Clinic, Cleveland, Ohio, USA
| | - Robert R Lorenz
- Department of Otolaryngology, The Cleveland Clinic, Cleveland, Ohio, USA
| | - David O Francis
- Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
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