Self-invented laryngeal stent in prevention of laryngotracheal stenosis after trauma

Objective To investigate the effect of self-invented laryngeal stent on preventing laryngotracheal stenosis after trauma and the optimal stay time for application. Methods The clinical data of26 patients with laryngtracheal trauma was analyzed. There were 7 patients with close laryngotracheal trauma and 19 with open laryngotracheal trauma. All the patients underwent tracheotomy and laryngotracheal reconstruction using self-invented personalized stents made with medical thermosetting plastics. Results In all the 26 patients,the stents and tracheal tubes were successfully removed 2-3 months after operation. 25 patients (96.15%,25/26) achieved near normal respiratory and phonatory functions withno stenosis after more than 1 years' followup. Only 1 patient developed subglottic stenosis. Conclusion Laryngeal stent made from medical thermosetting plastics can effectively prevent laryngotrachal stenosis caused by trauma effectively. The optimal stay of the stent was 2-3 months.