New Surgical Procedure for Laryngotracheal Separation without a Cannula or Postoperative Treatment

Abstract

Laryngotracheal separation is a surgical procedure used in the treatment of intractable aspiration. As with total laryngectomy and laryngotracheal diversion, this procedure requires postoperative pressure above the suture location to prevent leakage at the anastomosis. To date, there have been no reports regarding laryngeal separation without postoperative treatment. The purpose of this study was to evaluate a new surgical procedure for laryngotracheal separation that is performed without a cannula and requires no postoperative treatment. We performed the new surgical procedure in 7 patients. The mucosa of the cricoid cartilage was sutured to achieve tracheal closure. The closure was covered with a musculocutaneous flap of strap muscle; gauze was then tied over the skin and a 2-0 nylon suture was used to pierce the posterior part of the cricoid cartilage. In addition, a permanent tracheostoma was constructed without a tracheal cannula. No patients required a tracheal cannula or treatment after the operation. Additionally, aspiration pneumonia was prevented without complications in all patients. This new surgical procedure eliminates the need for a cannula and postoperative treatment. The effects of this method in terms of aspiration prevention are comparable to those of other surgical techniques.