[Congenital glottic-subglottic stenoses].
One particular form of congenital stenosis of larynx that should be considered as a separate entity is the combination of a glottic stenosis with subglottic retraction. The salient features of this malformation are analyzed in 15 cases: laryngeal dyspnea with dysphonia in 2 of 3 patients and the possible detection of a subglottic anomaly on lateral radiography of larynx. However, confirmation of diagnosis can only be by laryngotracheoscopy. It is important to establish a diagnosis of subglottic stenosis associated with a palmation, since treatment and prognosis are very different from those of an isolated glottic palmation: all attempts at endoscopic treatment resulted in failure that intubation or tracheotomy was necessary in 7 cases. One of the 3 fatal cases was directly related to lack of detection of the subglottic stenosis. A successful laryngoplasty was performed in 10 children.