Sep 2, 2016 · Idiopathic Subglottal Stenosis. Posted by brookssh @brookssh, Sep 2, 2016. I have had a subglottal stenosis for over twenty years, been diagnosed for six years, with a partially paralyzed vocal cord causing shortness of breath and a very weak, raspy voice.. Every six months I go to MUSC, Charleston to get my trachea dilated and CO2 laser for ...