Clinical Trials

The purpose of this study is to describe impulse oscillometry (IOS) in patients with symptomatic idiopathic subglottic stenosis (iSGS). The study will also compare IOS findings in patients with iSGS with IOS findings in patients with small airways obstruction and in healthy controls.

The purpose of this study is to compare the most commonly used treatment alternatives for idiopathic subglottic stenosis and to assess the differences in how each affects breathing, voice, swallowing, and quality-of-life.

The primary objective of this proposal is to develop an Airway Stenosis Registry at Mayo Clinic. The purpose of the registry will be to support ongoing research in the etiology, early diagnosis, clinical management, and prognosis of airway stenosis due to inflammation, cancers and other diseases of the airway.  

This study aims to collect data on patients with airway stenosis focusing on patient quality of life,  the identification of idiopathic subglottic stenosis, evaluation of the durability of interventions, and to share data with external collaborators. Pateints entered in this study may also participate in a multi-institutional study, PCORI. PCORI is focused on idiopathic subglottic stenosis outcomes reported by patients.

The purpose of this study is to describe past evidence of effectiveness of endoscopic balloon dilation in treating glottic stenosis and bilateral vocal fold immobility since July 2011 at Mayo Clinic, Arizona.