33 cases of subglottic stenosis were treated at the authors' clinic over 13 years (1982-1994). Most of these 33 cases were due to long-term endotracheal intubation and tracheostomy. We operated on 20 of these cases with subglottic stenosis. After these operations, systemic administration of antibiotics and local inhalation of steroids were essential. T-tubes were more effective in selected cases, combined with the surgical procedure. Recently, laser have been used as one treatment technique. This may become a very useful tool, if indications are selected properly. We have experienced three severe complications in spite of the treatment. An obstruction of a T-tube developed due to sputum, a removed T-tube accidentally, and a trachea was burn by KTP laser. Finally, we report on a new device named the L-tube that removes some of the deficiencies of the T-tube.
