Abstract
We reported a 4-year-old boy of congenital subglottic stenosis. He had inspiratory stridor after birth and recurrent episodes of croup. With a direct laryngoscopic and radiological examination we found subglottic stenosis from over the length of approximately 1cm of a few mm below the true vocal cords. Especially the right and left horizontal diameter of the lumen was shortened. Tracheotomy was performed because of a serious respiratory distress after infection. The stenosis was caused by the abnormally thick cricoid cartilage. After laryngofissure, we shaved the thick car- tilage under the periosteum and transplanted his cheek mucosa on the mucosa-deficient region of the lumen. In the expanded lumen, modified Montgomery silicone T tube that was convex-shaped and closed, was anchored. His voice was good but there was a comparatively severe scar formation in the skin incision and the anterior trachea wall. We have to keep in mind that raw surface may be repaired as well as possible in operation, that postoperative infection may not be caused.
