抄録
Laryngomalacia is the most common of congenital laryngeal anomalies and usually resolves without intervention by the second year of life, however, severe laryngomalacia has been shown to be frequently accompanied with synchronous laryngeal anomalies and comorbidities.
Laryngoscopy only reveals the collapse of supraglottic structures (epiglottis, aryepiglottic folds and arytenoids) with inspiration. Video recording during a laryngoscopic examination is recommended. Laryngomalacia was classified in four types: epiglottic type, aryepiglottic fold type, arytenoid type and combined type, based on McSwiny's categorization. We investigated 59 patients with severe laryngeal stridor during hospitalization. Of the 59 cases, 24 (40.7％) of them had laryngomalacia, ten of whom (41.7％ of the 24) had laryngeal lesions, 13 patients were intubated, tracheostomies were performed on 4 patients, supraglottoplasties were performed on 2 patients and laryngotracheal separation was performed on 2 patients. Two patients with acquired laryngomalacia were shown, one had a tongue cyst and another had a foreign body in the pharynx. Six patients that had cerebral paralysis with severe laryngomalacia were demonstrated as having the acquired type. In these patients laryngoscopy reveals severe mucosal edema and swelling of supraglottic structures.
