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  • Title: The microtrapdoor technique for the management of laryngeal stenosis.
    Author: Duncavage JA, Piazza LS, Ossoff RH, Toohill RJ.
    Journal: Laryngoscope; 1987 Jul; 97(7 Pt 1):825-8. PubMed ID: 3600135.
    Abstract:
    The use of the carbon dioxide laser as an endoscopic microsurgical instrument has stimulated interest in treating laryngeal and tracheal stenosis. Dedo and Sooy (1984) reported a significant improvement in the management of posterior commissure, subglottic, and high tracheal stenoses with the use of a microtrapdoor flap. A recent laboratory investigation of this method supported the clinical efficacy of this technique. Six patients are evaluated in this report, three with posterior commissure stenosis and three with subglottic or high tracheal lesions. All six patients had a tracheotomy present or performed at the time of their surgical procedures, and each patient had only one procedure. All six had improved airways after the microtrapdoor flaps. Five have been decannulated and one patient with associated hypopharyngeal stenosis still has a tracheostomy because of mild aspiration, although the airway lumen is moderately improved. It is felt that, as a group, the subglottic and high tracheal lesions respond to this technique better than the posterior commissure stenoses. Details of the technique are presented. This brief clinical report supports the efficacy of the microtrapdoor flap procedure in selected laryngeal and tracheal stenoses.
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