患儿 ,男 ,7岁。 1年前因喉外伤于我院行喉成形术 ,术后带管出院。 5ｄ前突然呛咳、呼吸困难 ,遂于当地医院就诊。检查见气管外套管断裂 (直径 5 .5ｃｍ) ,胸部Ｘ线片示外套管约 4 / 5坠入右支气管及气管内 ,行支气管镜检查术 ,术中见声门上区被瘢痕组织堵塞 ,支气管镜无法通过 Children, male, 7 years old. A year ago because of throat trauma in our hospital laryngoplasty, postoperative tube discharge. 5d suddenly cough, difficulty breathing, then in the local hospital. Check see tracheal tube fracture (diameter 5 .5cm), chest X-ray film shows the outer sleeve about 4/5 fall into the right bronchus and trachea, bronchoscopy, intraoperative, supraglottic see scar tissue was blocked, Bronchoscopy can not pass