NASOTRACHEAL AIRWAY OROPHARYNGEAL ALIMENTARY CANAL - A MICROVASCULAR TECHNIQUE FOR RECONSTRUCTION OF THE UPPER AIRWAY AFTER TOTAL LARYNGECTOMY

Every patient who has to be laryngectomized because of a carcinoma is concerned with the loss of his or her voice and the presence of a permanent tracheostoma in his or her neck. While various methods for producing a substitute voice are available (esophageal voice, voice devices, voice-shunt operations with or without voice prosthesis), it is usually impossible after laryngectomy to reconstruct a complete upper airway so that the tracheostoma can be closed. One potential method for reconstruction of the airway is its division into a nasotracheal airway and an oropharyngeal alimentary canal. Ten Alsatian dogs were laryngectomized, and a microvascularly anastomosed jejunal autograft was inserted as a junction between the tracheal stump and the circularly exposed nasopharynx, while the pharynx was reconstructed separately. One week postoperatively, oral feeding could be started again; at the same time breathing was possible via the reconstructed nasotracheal airway, which was kept open by insertion of a silicone tube. By means of this microvascular technique, a complete nasal airway could be reconstructed surgically after laryngectomy.